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Alexandra Guedes. é Professor Auxiliar no(a) Universidade do Porto Departamento de Geociências Ambiente e Ordenamento do Território.
Identification

Personal identification

Full name
Maria Alexandra de Mascarenhas Guedes

Citation names

  • Guedes, Alexandra

Author identifiers

Ciência ID
731B-DD2F-0CB5
ORCID iD
0000-0001-6397-3713
Scopus Author Id
7004710138

Knowledge fields

  • Natural sciences - Earth and Environmental Sciences - Geology
Education
Degree Classification
2001
Concluded
 Ramo do Conhecimento em Geologia (Doutoramento)
Universidade do Porto Faculdade de Ciências, Portugal
"Evolução das condições PVTX dos paleofluidos em contextos metamórficos do soco Hercínico" (THESIS/DISSERTATION)
 Unanimidade
Affiliation

Teaching in Higher Education

Category
Host institution 		Employer
2016/03/01 - Current Assistant Professor (University Teacher) Universidade do Porto Departamento de Geociências Ambiente e Ordenamento do Território, Portugal
Projects

Grant

Designation Funders
2010/01/01 - 2014/12/12 Application of Geology and Palynology in Forensic Research. The Example of Areínho River Beaches (Left Bank of the Douro River - Vila Nova de Gai (Aplicação da Geologia e da Palinologia em Investigação Forense. O Exemplo da Praia Fluvial do Areínho (Margem Esquerda do Rio Douro - Vila Nova de Gaia))
SFRH/BD/61460/2009
Universidade do Porto Faculdade de Medicina, Portugal
Concluded
2010/02 - 2013/08 Efeito dos poluentes atmosfericos não-biológicos no grão de polen
102796PRJ
 Fundação para a Ciência e a Tecnologia, I.P.
2008/02 - 2013/02 Forensic Sciences
47EEC
 Fundação para a Ciência e a Tecnologia
2007/04 - 2011/03 FORGEO- Contribuição dos métodos geológicos na investigação em ciências forenses.
67442PRJ
 Fundação para a Ciência e a Tecnologia, I.P.
2001/04 - 2007/03 UTILIZAÇÃO DA MICRO-ESPECTROMETRIA RAMAN NO ESTUDO DA COMPOSIÇÃO E DAS CONDIÇÕES DE FORMAÇÃO DE MINERAIS
11558DFA
 Fundação para a Ciência e a Tecnologia
1997/02/01 - 2001/01/31 INCLUSÕES FLUÍDAS E EVOLUÇÃO DA MATÉRIA ORGÂNICA. SUA UTILIZAÇÃO NA DEDUÇÃO DE CONDIÇÕES TERMOBAROMÉ- TRICAS DE METAFORMISMO
GGP XXI/BD/2765/96
Universidade do Porto Faculdade de Ciências, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
1997/02 - 2001/01 INCLUSÕES FLUÍDAS E EVOLUÇÃO DA MATÉRIA ORGÂNICA. SUA UTILIZAÇÃO NA DEDUÇÃO DE CONDIÇÕES TERMOBAROMÉ- TRICAS DE METAFORMISMO
221DFA
 Fundação para a Ciência e a Tecnologia, I.P.

Contract

Designation Funders
2022/01 - Current RED IBEROAMERICANA DE INVESTIGADORES FORENSES (RIIF)
Rede 622RT0133
 Ciencia y Tecnología para el Desarrollo
2022/01 - Current PhotoBioTrans - Photocatalytic Transformation of biomass-derived compounds into valuable products.
171103PRJ
 Fundação para a Ciência e a Tecnologia
2022 - Current Integrated solution for coal ash as a source of critical elements and as a substituting material for natural graphite and clay through development of some value-added products
DRI/India/0315/2020
 Fundação para a Ciência e a Tecnologia
2022 - Current PHIGO- Thermal Processing of P-rich ashes aiming for HIGH-GRADE PHOSPHORUS Products
ERA-MIN Joint Call 2021
 Fundação para a Ciência e a Tecnologia
2022 - Current Integrated solution for coal ash as a source of critical elements and as a substituting material for natural graphite and clay through development of some value-added products
166551PRJ
 Fundação para a Ciência e a Tecnologia, I.P.
2021/05 - Current Excite - Electron and X-ray microscopy Community for structural and chemical Imaging Techniques for Earth materials.
Project 101005611
 EU Framework Programme for Research and Innovation Research Infrastructures and E-Infrastructures
2021 - Current Soil health surrounding former mining areas: characterization, risk analysis and intervention
NORTE-01-0145-FEDER-00007
 Comissão de Coordenação e Desenvolvimento Regional- Norte
2020/10 - Current MOSTMEG- Predictive models for strategic metal rich, granite-related ore systems based on mineral and geochemical fingerprints and footprints
ERAMIN/0003/2019
 Fundação para a Ciência e a Tecnologia
2016/03 - Current COST Action- MULTI-modal Imaging of FOREnsic SciEnce Evidence - tools for Forensic Science”.
OC-2016-1-20419
 European Commission
2024/04 - 2028/03 Enhanced X(cross)-disciplinary Community-driven Imaging Technologies for Earth and Environmental material research
101131765
 European Commission
2025/02/01 - 2026/07/31 Provenance of blades’ raw material as an indicator of human mobility during the Copper age of the SW of the Iberian Peninsula
2023.13251.PEX
10.54499/2023.13251.PEX
ERA Arqueologia SA, Portugal

Universidade de Lisboa Faculdade de Letras, Portugal

Universidad de Granada Facultad de Filosofía y Letras, Spain

Laboratório Nacional de Energia e Geologia - Campus do Lumiar, Portugal
Fundação para a Ciência e a Tecnologia
Ongoing
2019/10/31 - 2022/10/30 Novel Circular Economic Approaches for Efficient Extraction of Valuables from Spend Li-Ion Batteries
ERA-MIN/0003/2018
Universidade do Porto Faculdade de Ciências, Portugal
 Fundação para a Ciência e a Tecnologia
Ongoing
2018/04/01 - 2022/03/31 Design of a product for SUBSTITUTION of phosphate rocks
ERA-MIN/0002/2017
Universidade do Porto Faculdade de Ciências, Portugal
 Fundação para a Ciência e a Tecnologia
Ongoing
2017/06 - 2020/06 Collaboratory for Geosciences
POCI-01-0145-FEDER-022151
 Fundação para a Ciência e Tecnologia
2017 - 2020 Desarrollo De Capacidades Interregionales En Torno A Los Recursos Estratégicos En Minería Metálica
0284_ESMIMET_3_E
 Interreg Europe
2019/01/01 - 2019/12/31 INSTITUTO DE CIÊNCIAS DA TERRA
UID/GEO/04683/2019
Universidade do Minho, Portugal

Universidade do Porto Faculdade de Ciências, Portugal

Universidade de Évora, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2016/05/02 - 2019/11/01 Physical-chemical characterization of atmospheric particulate matter sorbed to allergenic airborne pollen
PTDC/ATP-EAM/0817/2014
Universidade do Porto Faculdade de Ciências, Portugal

Instituto Politécnico da Guarda, Portugal

Universidade de Évora, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2016/04/01 - 2019/09/30 Coal char as a substituting material of natural graphite in green energy technologies
ERA-MIN/0005/2015
Universidade do Porto Faculdade de Ciências, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
2015/01 - 2018/12 H2020- Flexible and Mobile Economic Processing Technologies
641650
 Horizon 2020 Framework Programme
2015/03/10 - 2018/10/30 ASSESSMENT OF POSSIBLE RECYCLING DIRECTIONS OF HEAVY & RARE METALS RECOVERED FROM COMBUSTION WASTE PRODUCTS – RAREASH
ERA-MIN/0006/2014
Universidade do Porto Faculdade de Ciências, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
2015/01/01 - 2018/08/31 Development of new models for the genesis of Rare Metal W, Sn, Nb, Ta, Li<br>ore deposits from the European Variscan Belt and valorisation of low grade<br>and fine-grained ore and mine tailings.<br>
ERA-MIN/0002/2014
Universidade do Porto Faculdade de Ciências, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
2011/01/01 - 2013/12/31 Strategic Project (Projeto Estratégico) - UI 39
PEst-OE/CTE/UI0039/2011
Universidade do Porto Faculdade de Ciências, Portugal
Concluded
2010/02/08 - 2013/08/07 Effects of atmospheric non-biological pollutants on pollen grains
PTDC/AAC-AMB/102796/2008
Universidade do Porto Centro de Geologia, Portugal

Universidade do Porto Faculdade de Ciências, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2007/04/01 - 2011/03/31 FORGEO- Contribution of geologic methods to research in forensic sciences.
PTDC/CTE-GEX/67442/2006
Universidade do Porto Centro de Geologia, Portugal

Universidade do Porto Faculdade de Ciências, Portugal

Polícia Judiciária, Portugal

Universidade do Porto Faculdade de Engenharia, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2006/01/02 - 2008/06/30 Coal and char structure: their relation with the mitigation of greenhouse gases
POCI/CLI/60557/2004
Universidade do Porto Centro de Geologia, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
Outputs

Publications

Book
  1. Guedes, A.; Prieto, A.C.. Raman Spectroscopy for the Characterisation of Inks on Written Documents. 2012.
    10.1002/9781119962328.ch4c
Book chapter
  1. Dias, Joana M.; Vianez, Ricardo; Sant'Ovaia, Helena; Guedes, Alexandra; Cruz, Cláudia; Joana Alexandra Ferreira; Noronha, Fernando. Corresponding author: Dias, Joana M.. "XI Congresso Nacional de Geologia". In Caracterização Mineralógica do jazigo de ferro de Vila Cova (Marão), 383-384. Coimbra, Portugal: Lopes, F. C.; Dinis, P. A.; Duarte, L. V.; Cunha, P. P. : Departamento de Ciências da Terra da Universidade de Coimbra, 2023.
    Published
  2. CARVALHO, ÁUREA; Guedes, Alexandra. "Forensic Geology (ebook written in English)". In What are Forensic Sciences? Concepts, Scope and Future Perspectives, edited by Dinis-Oliveira, Ricardo Jorge; Magalhães, Teresa. Portugal: Pactor, 2016.
    Published
  3. Madureira-Carvalho, Áurea; Guedes, Alexandra. "Forensic Geology (Geologia Forense)". In What are Forensic Sciences? Concepts, Scope and Future Perspectives (O que são as Ciências Forenses: Conceito, Abrangência e Perspetivas Futuras), edited by Dinis-Oliveira, Ricardo Jorge; Magalhães, Teresa. Portugal: Pactor, 2016.
    Published
  4. Guedes, Alexandra; Valentim, Bruno. "Dados geológicos em ciências forenses". Associação Portuguesa para o Estudo do Quaternário (APEQ), 2014.
  5. Guedes, Alexandra; Valentim, Bruno. "Dados geológicos em ciências forenses". 2014.
  6. Guedes, Alexandra. "Integration of different sediment characteristics to discriminate between sources of coastal sediments". 2013.
    10.1144/SP384.1
  7. Guedes, Alexandra. "The Potential Application of Magnetic Susceptibility as a Technique for Soil Forensic Examinations". 2013.
    10.1144/SP384.7
  8. Guedes, Alexandra. "Application of Geology and Palynology in the characterization of a river beach (Portugal) for forensic purposes". 2013.
    10.1144/SP384.3
  9. Noronha, Fernando; Ribeiro, maria; Almeida, Angela; Dória, Armanda; Guedes, Alexandra; Lima, Alexandre; Martins, Helena; et al. "Jazigos Filonianos Hidrotermais e Aplitopegmatíticos Espacialmente Associados a Granitos (Norte de Portugal).". Escolar Editora, 2013.
  10. Noronha, Fernando; Ribeiro, maria; Almeida, Angela; Dória, Armanda; Guedes, Alexandra; Lima, Alexandre; Martins, Helena; et al. "Jazigos Filonianos Hidrotermais e Aplitopegmatíticos Espacialmente Associados a Granitos (Norte de Portugal).". 2013.
Conference abstract
  1. Ana Cláudia Santos; Kuzniarska-Biernacka, Iwona; Guedes, Alexandra; Valentim, Bruno. "Characterization of Fe-bearing morphotypes from coal combustion ashes focusing on its application on catalytical reactions". Paper presented in Joint 74th ICCP and 39th TSOP Meeting, Patras, 2023.
  2. Valentim, Bruno; Charlotte Badenhorst; Guedes, Alexandra; Elsayed Mousa; Karen Moreira; Ana Cláudia Santos; Guozhu Ye. Corresponding author: Valentim, Bruno. "Applied organic petrography to spent lithium-ion batteries (LiB) recycling". Paper presented in Joint 74th ICCP and 39th TSOP Meeting, Patras, 2023.
  3. Vianez, Ricardo; Dias, Joana M.; Cruz, Cláudia; Font, Eric; Helena Sant'Ovaia; Guedes, Alexandra; Joana Alexandra Ferreira; Noronha, Fernando. Corresponding author: Vianez, Ricardo. "Estudos Magnéticos do Minério de Ferro de Moncorvo". Paper presented in XIII MagIber, Porto, 2023.
    Published
  4. Dias, Joana M.; Vianez, Ricardo; Cruz, Cláudia; Font, Eric; Helena Sant'Ovaia; Guedes, Alexandra; Joana Alexandra Ferreira; Noronha, Fernando. Corresponding author: Dias, Joana M.. "Características magnéticas do minério de ferro de Vila Cova (Marão)". Paper presented in XIII MagIber, Porto, 2023.
    Published
  5. Dias, Joana M.; Vianez, Ricardo; Helena Sant'Ovaia; Guedes, Alexandra; Cruz, C.; Ferreira, Joana; Noronha, Fernando. Corresponding author: Dias, Joana M.. "Mineralogical characterization of the Vila Cova (Marão) iron deposit". Paper presented in XI Congresso Nacional de Geologia 2023, Coimbra, 2023.
    Published
  6. Vianez, Ricardo; Dias, Joana M.; Guedes, Alexandra; Helena Sant'Ovaia; Ferreira, Joana; Cruz, C.; Noronha, Fernando. Corresponding author: Vianez, Ricardo. "Mineralogical Characterization of the ore from Cabeço de Mua (Moncorvo) Iron Deposit". Paper presented in XI Congresso Nacional de Geologia 2023, Coimbra, 2023.
    Published
  7. Kuzniarska-Biernacka, Iwona; Marta Monteiro; Pedro Miranda; Andreia F. Peixoto; Ana Cláudia Santos; W. Maniukiewicz; Valentim, Bruno; Guedes, Alexandra; Freire, Cristina. Corresponding author: Kuzniarska-Biernacka, Iwona. "(Photo)Oxidative transformation of biomass derived molecules into valuable products". Paper presented in XXVIII National meeting of SPQ, Aveiro, 2023.
  8. Ana Cláudia Santos; Guedes, Alexandra; Valentim, Bruno. "Four-step process to obtain a char concentrate from coal fly ash". Paper presented in Earth Sciences Institute journeys, Braga, 2023.
  9. Ana Cláudia Santos; Kuzniarska-Biernacka, Iwona; Cruz, Cláudia; Guedes, Alexandra; Helena, Sant Ovaia; Font, Eric; Andreia F. Peixoto; et al. Corresponding author: Ana Cláudia Santos. "Characterization of magnetic concentrates (MC) from coal combustion ashes for further application as catalyst in 4-nitrophenol reduction reaction.". Paper presented in XI Congresso Nacional de Geologia, Coimbra, 2023.
  10. Guedes, Alexandra; Ribeiro, Helena; H., Sant'Ovaia; Beatriz Senra; Ana Cláudia Santos; Valentim, Bruno; Carlos Molina. Corresponding author: Guedes, Alexandra. "Rede Iberoamericana de Investigadores Forenses ¿ RIIF. Ibero-American Network of Forensic Investigators ¿ RIIF". Paper presented in XI Congresso Nacional de Geologia, Coimbra, 2023.
  11. Ana Cláudia Santos; Charlotte Badenhorst; Barbara Bialecka; Guedes, Alexandra; Georgeta Predeanu; Nicola Wagner; Valentim, Bruno. "Graphitization of coal chars". Paper presented in 3rd Annual Meeting of the International Committee for Coal and Organic Petrology, New Delhi, 2022.
  12. Pedro Miranda; Ana Cláudia Santos; Valentim, Bruno; Guedes, Alexandra; Clara Pereira; Andreia F. Peixoto; Kuzniarska-Biernacka, Iwona. "Magnetic composites for photocatalytic transformation of HMF into value-added products". Paper presented in XXVI Encontro Galego-Portugués de Química, Santiago de Compostela, 2022.
  13. Yakovenko, Alina; Guedes, Alexandra. Corresponding author: Guedes, Alexandra. "Mineralogy and fluid inclusion studies in quartz from the Li-rich pegmatite veins from Segura". Paper presented in Encontro de Investigação Jovem da U.Porto, Porto, 2022.
    Accepted
  14. Inês Ferreira; Ana Cláudia Santos; Valentim, Bruno; Guedes, Alexandra; Andreia F. Peixoto; Kuzniarska-Biernacka, Iwona; Freire, Cristina. "Chitosan-based Hybrid Coal Fly Ashes as Catalyst for the Reductive Nitrophenol Transformation". Paper presented in National Meeting on Catalysis and Porous Materials & II Meeting of the Carbon Group - Virtual Conference, 2021.
  15. Ana Cláudia Santos; Charlotte Badenhorst; Barbara Bialecka; Ignacio Cameán; Guedes, Alexandra; Georgeta Predeanu; Isabel Suárez-Ruíz; Nicola Wagner; Valentim, Bruno. "Coal chars reflectance assessment before and after graphitization". Paper presented in 72nd Annual Meeting of the International Committee for Coal and Organic Petrology, Prague, 2021.
  16. Ana Cláudia Santos; Guedes, Alexandra; Valentim, Bruno. "Rare Earth Elements (REE) Distribution on Commercial Coal and Respective Combustion Ashes from a Portuguese Thermoelectric Power Plant". Paper presented in International Pittsburgh Coal Conference - Virtual, 2021.
  17. Valentim, Bruno; Guedes, Alexandra; Karen Moreira; Ana Cláudia Santos. "Spatial variation in rice husk poultry litter ash: implications for phosphorus recovery". Paper presented in International Conference on Resource Sustainability, Dublin, 2021.
  18. Kuzniarska-Biernacka, Iwona; Ana Cláudia Santos; Guedes, Alexandra; Bruno Jarrais; Andreia F. Peixoto; Valentim, Bruno; Freire, Cristina. Corresponding author: Kuzniarska-Biernacka, Iwona. "Application of coal fly ash in wastewater treatment". Paper presented in XXVII National Meeting of the Portuguese Chemical Society, Braga, 2021.
  19. Ana Cláudia Santos; Kuzniarska-Biernacka, Iwona; Freire, Cristina; Guedes, Alexandra; Bruno Jarrais; Andreia F. Peixoto; Valentim, Bruno. "Characterization of coal fly ash applied in wastewater treatment". Paper presented in XXVII National Meeting of the Portuguese Chemical Society, Braga, 2021.
  20. Ana Cláudia Santos; Kuzniarska-Biernacka, Iwona; Guedes, Alexandra; Andreia F. Peixoto; Valentim, Bruno. "Magnetic fraction from coal combustion ashes as catalyst in the 4-nitrophenol (4- NPh) reduction reaction". Paper presented in Earth Sciences Institute journeys - Virtual, 2021.
    Published
  21. Ana Cláudia Santos; Guedes, Alexandra; Valentim, Bruno. "Caracterização de cinzas resultantes da combustão de carvão para avaliação do seu potencial como matérias-primas para extração elementos terras raras". Paper presented in Earth Sciences Institute journeys, Braga, 2020.
    Published
  22. Ana Cláudia Santos; Karen Moreira; Guedes, Alexandra; Valentim, Bruno. "Characterization of carbon-rich metasedimentary rocks from NW Portugal by Raman microspectroscopy". Paper presented in XII Iberian Congress on Geochemistry | XX Geochemistry week, Évora, 2019.
    Published
  23. Ana Cláudia Santos; Guedes, Alexandra; Karen Moreira; Valentim, Bruno. "Assessment of the potential for extraction of REE from fly ashes and bottom ashes derived from commercial coals burned in a Portuguese power plant.". Paper presented in 71st meeting of the International Committee for Coal and Organic Petrology (ICCP), Hague, 2019.
    Published
  24. Karen Moreira; Ana Cláudia Santos; Bruno Valentim; Guedes, Alexandra. "Raman microspectroscopy characterization of graphite from ¿Terra Negra and Ferreiros¿ mine (NW Portugal)". Paper presented in Goldschmidt, Barcelona, 2019.
    Published
  25. Ana Cláudia Santos; Karen Moreira; Guedes, Alexandra; Valentim, Bruno. "Characterization of coal char by Raman microspectroscopy before and after acid leaching". Paper presented in Goldschmidt, Barcelona, 2019.
    Published
  26. Ana Cláudia Santos; Charlotte Badenhorst; Nicola Wagner; Valentim, Bruno; Guedes, Alexandra; Barbara Bialecka; Joanna Calus-Moszko; et al. "Char from coal ash as a possible precursor for synthetic graphite ¿ Recent developments of the Charphite project.". Paper presented in World of Coal Ash (WOCA), St. Louis (Missouri), 2019.
    Published
  27. Ana Cláudia Santos; Valentim, Bruno; Freire, Cristina; Guedes, Alexandra; Juan Lázaro-Martínez; Marta Nunes; Andreia F. Peixoto; Andreia F. Peixoto. "Study on the potential of coal fly ash as solid catalysts and respective char as carbon-based electrocatalysts.". Paper presented in World of Congress on Recycling, Valencia, 2019.
    Published
  28. Ana Cláudia Santos; Guedes, Alexandra; Barbara Bialecka; Charlotte Badenhorst; Georgeta Predeanu; Joanna Calus-Moszko; Juan Lázaro-Martínez; et al. "Recovery of carbonaceous solid residue (char) from coal ash to use as possible substitute graphite-based materials in green energy applications". Paper presented in World of Coal Ash (WOCA), St. Louis (Missouri), 2019.
  29. Ana Cláudia Santos; Valentim, Bruno; Barbara Bialecka; Joanna Calus-Moszko; Mihai Cruceru; Freire, Cristina; Guedes, Alexandra; et al. "CHARPHITE Project: coal char as a substituting material of natural graphite in green energy technologies.". Paper presented in Carbon, Madrid, 2018.
    Published
  30. Valentim, Bruno; Abagiu, A.T.; Bialecka, B.; Caluz-Mosko, J; Gonçalves, Paula Alexandra; Guedes, Alexandra; Popescu, L.; et al. Corresponding author: Valentim, Bruno. "Coal bottom ash recycling for rare earth elements recovering for solar collectors". Paper presented in The World Conference on Carbon, Carbon 2018, Madrid, 2018.
    Published
  31. Ana Cláudia Santos; Guedes, Alexandra; Valentim, Bruno. "Pre-concentration trials to obtain char from fly ashes: preliminary results.". Paper presented in ICT Journeys 2018, Porto, 2018.
    Published
  32. Ana Cláudia Santos; Abagiu, A.T.; Barbara Bialecka; Mihai Cruceru; Freire, Cristina; Guedes, Alexandra; Juan Lázaro-Martínez; et al. "Distribuição do selénio em carvões e respetivas cinzas.". Paper presented in XIV Congress of Geochemistry of Portuguese Speaking Countries and XIX Geochemistry Week, Vila Real, 2018.
    Published
  33. Ana Cláudia Santos; Abagiu, A.T.; Barbara Bialecka; Mihai Cruceru; Freire, Cristina; Guedes, Alexandra; Juan Lázaro-Martínez; et al. "Assessment of the critical elements Be, Bi, Co, Ga, Hf, In, Nb, Sb, Ta, V, W in coals and respective ashes". Paper presented in VII Congresso de Jovens Investigadores em Geociências, LEG, Estremoz, 2017.
    Published
  34. Guedes, Alexandra; Abagiu, A.T.; Barbara Bialecka; Mihai Cruceru; Freire, Cristina; Juan Lázaro-Martínez; Georgeta Predeanu; et al. "Carbon forms in coal, fly ash and bottom ash". Paper presented in Goldschmidt, Paris, 2017.
    Published
  35. Ana Cláudia Santos; Barbara Bialecka; Cristina Freire; Guedes, Alexandra; Juan Lázaro-Martínez; Popescu, L.G.; Georgeta Predeanu; Nicola Wagner; Valentim, Bruno. Corresponding author: Ana Cláudia Santos. "Distribution of lanthanides, yttrium and scandium in ashes from coal-fired power stations". Paper presented in Goldschmidt, Paris, 2017.
    Published
  36. Ana Cláudia Santos; Abagiu, A.T.; Anghelescu, L.; Charlotte Badenhorst; Barbara Bialecka; Joanna Calus-Moszko; Magdalena Cempa; et al. "Project CHARPHITE: presentation and up to date of Porto University results.". Paper presented in ICT Journeys, Braga, 2017.
    Published
  37. Maia, Miguel; Guedes, Alexandra; Bobos, Iuliu; Noronha, Fernando. "Study of fluid-rock interaction in a Variscan biotite granite from Beiras Uraniferous subprovince (Portugal). Preliminary results.". Paper presented in ECROFI 2017 - European Current Research On Fluid Inclusions, Nancy, 2017.
    Published
  38. Neves, Vanessa; Guedes, Alexandra; Valentim, Bruno; Campos, Joana; Freitas, Vânia. "Aberrant otoliths in juvenile flounder Platichthys flesus (L.).". Paper presented in XV European Congress of Ichthyology., Porto, 2015.
    Published
  39. Gomes, E. M. C.; Dória, Armanda; Guedes, Alexandra. "Raman microspectroscopy of carbonaceous materials in marbles from Alentejo, Portugal". Paper presented in 10th International Conference on Raman spectroscopy Apllied to Earth Sciences - GEORAMAN 10, Nancy, 2012.
    Published
  40. Madureira-Carvalho, Áurea; Ribeiro, Helena; Guedes, Alexandra; Sant'Ovaia, Helena; Abreu, Ilda; Noronha, Fernando. "Magnetic susceptibility of sands from a river beach for forensic applications". Paper presented in Goldschmidt Conference, 2011.
    Published
  41. Rodrigues, A; Guedes, A; Sant'Ovaia, H; Valentim, B; Ribeiro, H; Noronha, F. "The use of magnetic susceptibility and colour on dune samples for forensic purposes". 2009.
  42. Guedes, A; Ribeiro, H; Sant'ovaia, H; Valentim, B; Rodrigues, A; Doria, A; Ribeiro, MA; Noronha, F. "Discrimination of sediment samples for forensic applications". 2009.
  43. Valentim, B; Guedes, A. "Determination of nitrogen functionalities by X-ray photoelectron spectroscopy (XPS) in FBC chars". 2009.
  44. Doria, A; Guedes, A; Ribeiro, MA. "Characterization of carbon materials in metasediment hosted gold deposits (NW Portugal) by micro-Raman spectroscopy". 2007.
  45. Valentim, B; Costa, A; Guedes, A; Boavida, D; Marques, M; Flores, D. "X-ray photoelectron spectroscopy study of coals with different rank". 2007.
  46. Guedes, A; Valentim, B; Rodrigues, S; Costa, A; Marques, M; Flores, D. "Micro-Raman spectroscopy and optical reflectance studies of coals with different rank". 2007.
  47. Valentim, B; Guedes, A; Flores, D. "Characterization of fly ash by SEW/EDS and Raman spectroscopy". 2005.
  48. Doria, A; Guedes, A; Noronha, F. "The use of micro-Raman spectroscopy as a fingerprint in a forensic investigation". 2005.
Conference paper
  1. Ramos, Violeta; Gonçalves, A.; Guedes, Alexandra; Noronha, Fernando; Seltmann, R.; Dolgopolova, A.. "The Gonçalo deposit: Geochemistry of the Li-rich aplite-pegmatite sills and its host granite.". Paper presented in XIV Congresso de Geoquímica dos Países de Língua Portuguesa/XIX Semana da Geoquímica,, Vila Real, 2018.
    Published
  2. Rodrigues, Marcela; Guedes, Alexandra; Lima, Alexandre; Noronha, Fernando. "Estudo de inclusões fluidas num pegmatito litinífero da região de Covas do Barroso - Resultados preliminaries". 2017.
  3. Freitas, marieta; Carolino, Alexandra; Guedes, Alexandra; Noronha, Fernando. "P-T Conditions of subsolidus modifications on rare metal enriched pegmatites : An Example from Central Portugal". Paper presented in 13th Biennial SGA Meeting- Proceedings Mineral Resources in a Sustainable World, Nancy, 2015.
    Published
  4. Valentim, Bruno; Boavida, D.; Guedes, Alexandra; Marques, M. M.; Garcia, C.; Silva, R.. "A estrutura do carvão e do char: a sua relação com a mitigação dos gases de estufa". 2010.
    Published
  5. Valentim, B.; Hower, J.C.; Flores, D.; Guedes, A.. "Laminar calcite aggregate formation in the light fly ash fraction". 2009.
  6. Sousa, Mónica; Marques de Sá, Carlos; Guedes, Alexandra; Flores, Deolinda; Charef, Abdelkrim; Noronha, Fernando. "Fluid inclusion studies in northern Tunisian Pb-Zn-F-Ba ore deposits". Paper presented in IX Pan-American Conference on Research on Fluid Inclusions – In memory of Edwin Roedder, Reston, 2008.
    Published
  7. Sousa, M; Guedes, A; Noronha, F; Flores, D; Charef, A. "A contribution to the knowledge of the Hammam Zriba and Bou Jaber Pb-Zn-Ba-F ore deposits (Tunisia)". 2007.
  8. Noronha, F; Auajjar, J; Guedes, A; Banks, D. "Pb-Zn-Ba mineralization from the Tazekka Pb-Zn district, eastern Morocco". 2007.
  9. Sousa, Mónica; Guedes, Alexandra; Flores, Deolinda; Charef, Abdelkrim; Noronha, Fernando. "Fluids associated with F-Ba-Pb-Zn mineralization of stratiform carbonate-hosted deposits: the examples of Hammam Zriba and Bou Jaber (Tunisia)". Paper presented in XVIII ECROFI, 2005.
    Published
  10. Sousa, Mónica; Guedes, Alexandra; Flores, Deolinda; Charef, Abdelkrim; Noronha, Fernando. "Estudo de Mineralizações de F-Ba-Zn-Pb de Hammam Zriba e Bou Jaber (Tunísia)". Paper presented in XIV Semana de Geoquímica e VIII Congresso Nacional de Geoquímica dos Países de Língua Portuguesa, 2005.
    Published
  11. Sousa, Mónica; Guedes, Alexandra; Charef, Abdelkrim; Banks, David; Noronha, Fernando. "Fluids Associated With Carbonate-Host Mineralizations Of Tunisian Central Atlas". Paper presented in 32nd International Geological Congress, 2004.
    Published
  12. Sousa, Mónica; Noronha, Fernando; Charef, Abdelkrim; Guedes, Alexandra. "Fluids Associated With F-Ba Mineralizations of The Stratiform Carbonate-Hosted Deposit of Hammam Zriba (Tunísia)”,". Paper presented in XVII ECROFI, 2003.
    Published
  13. Noronha, Fernando; Charef, Abdelkrim; Sousa, Mónica; Guedes, Alexandra. "The Stratiform Carbonate-Hosted F-Ba Deposit of Hammam Zriba (Tunisia): Some Genetic Considerations". Paper presented in Workshop on Geodynamic setting of major basin-hosted lead-zinc mineral provinces, 2002.
Conference poster
  1. Monteiro, Marta; Iwona Kuzniarska-Biernacka; Guedes, Alexandra; Andreia F. Peixoto; Bruno Valentim; Waldemar Maniukiewicz. Corresponding author: Monteiro, Marta. "Production of Valuable Chemicals Through Selective Catalytic (photo) Oxidation Transformation of 5-Hydroxymethylfurfural". Paper presented in 3rd International Conference on Applied Science and Engineering, 2023.
  2. Vianez, Ricardo; Dias, Joana M.; Helena Sant'Ovaia; Guedes, Alexandra; Cruz, Cláudia; Joana Alexandra Ferreira; Noronha, Fernando. Corresponding author: Vianez, Ricardo. "Caracterização Mineralógica do minério do Jazigo de Ferro de Cabeço de Mua (Moncorvo)". Paper presented in XI Congresso Nacional de Geologia, 2023.
  3. Dias, Joana M.; Vianez, Ricardo; Sant'Ovaia, Helena; Guedes, Alexandra; Cruz, Cláudia; Joana Alexandra Ferreira; Noronha, Fernando. Corresponding author: Dias, Joana M.. "Caracterização mineralógica do jazigo de ferro de Vila Cova (Marão)". Paper presented in XI Congresso Nacional de Geologia, 2023.
  4. Vianez, Ricardo; Dias, Joana M.; Guedes, Alexandra; Helena, Sant Ovaia; Joana Alexandra Ferreira; Cruz, Cláudia; Noronha, Fernando. Corresponding author: Vianez, Ricardo. "Multidisciplinary study of mineral associations of the Torre de Moncorvo iron deposit of Cabeço de Mua". Paper presented in Jornadas do ICT, 2023.
  5. Dias, Joana M.; Vianez, Ricardo; Helena, Sant Ovaia; Guedes, Alexandra; Joana Alexandra Ferreira; Cruz, Cláudia; Noronha, Fernando. Corresponding author: Dias, Joana M.. "Multidisciplinary study of the Vila Cova iron deposit mineral associations". Paper presented in Jornadas do ICT, 2023.
  6. Loureiro, Marcelo P; Santos, Ana C.; Matos, Renata; Marques, Inês; ; Valentim, Bruno; Guedes, Alexandra; Maniukiewicz, Waldemar; Peixoto, Andreia F.; Kuzniarska-Biernacka, Iwona. "Preparation and characterization of biopolymer-based composites for environmental applications". Paper presented in 16ª edição Encontro Investigação Jovem Porto, Portugal 2023, 2023.
  7. Miranda, Pedro; Ana Cláudia Santos; Valentim, Bruno; Guedes, Alexandra; Clara Pereira; Peixoto, Andreia F.; Kuzniarska-Biernacka, Iwona. Corresponding author: Miranda, Pedro. "(Photo)catalytic transformation of HMF into value-added products". Paper presented in XXVI Encontro Galego-Portugués de Química, 2022.
  8. Ana Cláudia Santos; Kuzniarska-Biernacka, Iwona; Guedes, Alexandra; Andreia F. Peixoto; Valentim, Bruno. "Coal Fly Ashes for Water Treatment". Paper presented in Science and Technology Portugal Summit, 2021.
  9. Silva, Sara; Noronha, Fernando; Guedes, Alexandra. "Condições P-T de cristalização de um quartzo contemporâneo da volframite do Jazigo de W-Sn da Panasqueira". Paper presented in XII Congresso Ibérico de Geoquímica, 2019.
  10. Silva, Sara; Noronha, Fernando; Guedes, Alexandra. "Estudo de inclusões fluidas num cristal de quartzo contemporâneo da volframite do Jazigo da Panasqueira ¿ Resultados Preliminares". Paper presented in Jornadas do ICT 2019, 2019.
  11. Valentim, Bruno; Freire, Cristina; Guedes, Alexandra; J. Lazaro-Martinez; Nunes, Marta; Andreia F. Peixoto; Santos, Ana C.. "Study on the Potential of Coal Fly Ash as Solid Acid Catalysts and Respective char as carbon-Based Electrocatalysts". Paper presented in World Congress on Recycling, 2019.
  12. Lopes, Daniel; Guedes, Alexandra; Madureira-Carvalho, Áurea. "Temporal variation of inorganic components in sediments - forensic application (Variação temporal de componentes inorgânicos em sedimentos ¿ sua aplicação forense)". Paper presented in III Congresso da Associação Portuguesa de Ciências Forenses/ XII Jornadas Científicas de Ciências do Instituto Universitário de Ciências da Saúde, 2018.
  13. Pereira, Ariana; Lima, Alexandre; Ribeiro, Helena; Guedes, Alexandra; Sant'Ovaia, Helena; Madureira-Carvalho, Áurea. "Measurement of magnetic susceptibility in urban soils for forensic application (Medição da suscetibilidade magnética em solos urbanos para aplicação forense)". Paper presented in III Congresso da Associação Portuguesa de Ciências Forenses/ XII Jornadas Científicas de Ciências do Instituto Universitário de Ciências da Saúde, 2018.
  14. Sousa, Rui; Ramos, Violeta; Machado Leite, Mário; Noronha, Fernando; Botelho de Sousa, Ana; Guedes, Alexandra. "The Gonçalo deposit: a good example of a future sustainable lithium mine". Paper presented in European Geosciences Union General Assembly, 2018.
  15. Madureira-Carvalho, Áurea; Ribeiro, Helena; Newman, Gareth; Brewer, Mark; Guedes, Alexandra; Abreu, Ilda; Noronha, Fernando; Dawson, Lorna. "The use of geochemical signature of sediments for environmental and criminal forensic purposes". Paper presented in I Congresso da Associação Portuguesa de Ciências Forenses/ IV Congresso da Sociedade Portuguesa Para o Estudo da Criança Abusada e Negligenciada, 2016.
  16. Madureira-Carvalho, Áurea; Ribeiro, Helena; Guedes, Alexandra; Abreu, Ilda; Noronha, Fernando. "Geobotanical characterization of a river beach for forensic purposes". Paper presented in Third International Soil Forensics Conference, 2010.
  17. Madureira-Carvalho, Áurea; Ribeiro, Helena; Guedes, Alexandra; Abreu, Ilda; Noronha, Fernando. "Characterization of a river beach (Portugal): a multidisciplinary approach for forensic investigation". Paper presented in Environmental and Criminal Forensics Meeting, 2010.
Journal article
  1. Chaima Somrani; Fouad Souissi; Giovanni De Giudici; Alexandra Guedes; Silvio Ferrero. "Fluid Inclusion Evidence of Deep-Sourced Volatiles and Hydrocarbons Hosted in the F–Ba-Rich MVT Deposit Along the Zaghouan Fault (NE Tunisia)". Minerals (2025): https://doi.org/10.3390/min15050489.
    10.3390/min15050489
  2. Alina Yakovenko; Alexandra Guedes; Fernando Noronha; Ícaro Dias da Silva; António Mateus. "P–T-X evolution of the fluids associated with Sn-Li mineralization from Pedra Alta (Argemela, Portugal)". Journal of Iberian Geology (2025): https://doi.org/10.1007/s41513-025-00289-7.
    10.1007/s41513-025-00289-7
  3. Sónia G. Pereira; Helena Ribeiro; Bruno Valentim; Alexandra Guedes. "Geogenic characterisation of airborne particles from the former Regoufe mining area". Environmental Pollution (2025): https://doi.org/10.1016/j.envpol.2024.125416.
    10.1016/j.envpol.2024.125416
  4. Joana M. Dias; Ricardo Vianez; Cláudia Cruz; Eric Font; Helena Sant’Ovaia; Joana Ferreira; Alexandra Guedes. "Magnetic properties of iron ores from two Ordovician deposits in Northern Portugal: Marão and Moncorvo". Journal of Iberian Geology (2024): https://doi.org/10.1007/s41513-024-00267-5.
    10.1007/s41513-024-00267-5
  5. Bruno Valentim; Alexandra Guedes; Iwona Kuzniarska-Biernacka; Joana Dias; Georgeta Predeanu. "Variation in the Composition of Municipal Solid Waste Incineration Ash". Minerals (2024): https://doi.org/10.3390/min14111146.
    10.3390/min14111146
  6. Ribeiro, h.; Nuno Mariz-Ponte; Sónia Pereira; Alexandra Guedes; Ilda Abreu; Luísa Moura; Conceição Santos. "Can Photoselective Nets’ Influence Pollen Traits? A Case Study in ‘Matua’ and ‘Tomuri’ Kiwifruit Cultivars". Plants (2024): https://www.mdpi.com/2223-7747/13/12/1691.
    10.3390/plants13121691
  7. Teixeira, Joana S.; Costa, Rui S.; Guedes, Alexandra; Pereira, André M.; Clara Rodrigues Pereira. Corresponding author: Clara Rodrigues Pereira. "Fabrication of CNT-N@Manganese Oxide Hybrid Nanomaterials through a Versatile One-Pot Eco-Friendly Route toward Engineered Textile Supercapacitors". ACS Applied Engineering Materials (2024): http://dx.doi.org/10.1021/acsaenm.4c00164.
    In press • 10.1021/acsaenm.4c00164
  8. Santos, AC; Badenhorst, C; Bialecka, B; Cameán, I; Guedes, A; Moreira, K; Predeanu, G; et al. "Graphitization: Microstructural and microtextural transformations of residual char from international coal combustion ash". International Journal of Coal Geology (2024): https://www.authenticus.pt/P-010-1NB.
    10.1016/j.coal.2024.104470
  9. Vianez, Ricardo; Dias, Joana M.; Guedes, Alexandra; Sant'Ovaia, Helena; Joana Alexandra Ferreira; Cruz, Cláudia; Noronha, Fernando. Corresponding author: Vianez, Ricardo. "Caracterização Mineralógica do minério de ferro dos Jazigos de Cabeço de Mua e da Carvalhosa (Moncorvo)". Comunicações Geológicas Especial (2024):
    Accepted
  10. Kuzniarska-Biernacka, Iwona; Andreia F. Peixoto; Ana Cláudia Santos; Valentim, Bruno; Guedes, Alexandra; Freire, Cristina. Corresponding author: Kuzniarska-Biernacka, Iwona. "Fotocatálise: uma Ferramenta para Valorizar Resíduos de Combustão e Compostos Derivados de Biomassa". Quimica 48 (2024): 215-219.
    Published
  11. Ramos, V; Noronha, F; Seltmann, R; Dolgopolova, A; Guedes, A; Andersen, J; Spruzeniece, L; et al. "Sao Pedro das Aguias skarn: A W-(Sn) deposit from the Douro Scheelite Belt, Northern Portugal". ORE GEOLOGY REVIEWS (2024): https://www.authenticus.pt/P-017-M6S.
    10.1016/j.oregeorev.2024.106348
  12. Senra, BP; Ribeiro, H; Guedes, A. "Technical note: Application of Handheld X-ray fluorescence spectrometers in forensic analysis of cigarette ash". FORENSIC SCIENCE INTERNATIONAL (2024): https://www.authenticus.pt/P-010-GJ0.
    10.1016/j.forsciint.2024.112083
  13. Iwona Kuzniarska-Biernacka; Inês Ferreira; Marta Monteiro; Ana Cláudia Santos; Bruno Valentim; Alexandra Guedes; João H. Belo; et al. "Highly Efficient and Magnetically Recyclable Non-Noble Metal Fly Ash-Based Catalysts for 4-Nitrophenol Reduction". Catalysts (2023): https://doi.org/10.3390/catal14010003.
    10.3390/catal14010003
  14. Susana L. H. Rebelo; César A. T. Laia; Monika Szefczyk; Alexandra Guedes; Ana M. G. Silva; Cristina Freire. "Hybrid Zn-ß-Aminoporphyrin–Carbon Nanotubes: Pyrrolidine and Direct Covalent Linkage Recognition, and Multiple-Photo Response". Molecules (2023): https://doi.org/10.3390/molecules28217438.
    10.3390/molecules28217438
  15. Charlotte Badenhorst; Iwona Kuzniarska-Biernacka; Alexandra Guedes; Elsayed Mousa; Violeta Ramos; Gavin Rollinson; Guozhu Ye; Bruno Valentim. "Recovery of Graphite from Spent Lithium-Ion Batteries". Recycling (2023): https://doi.org/10.3390/recycling8050079.
    10.3390/recycling8050079
  16. Ana Cláudia Santos; Cláudia Cruz; Eric Font; David French; Alexandra Guedes; Karen Moreira; Helena Sant’Ovaia; et al. "Physicochemical Properties of Fe-Bearing Phases from Commercial Colombian Coal Ash". Minerals (2023): https://doi.org/10.3390/min13081055.
    10.3390/min13081055
  17. Pacheco, Marlene L.; Pinto, Tânia V.; Sousa, Céu M.; Guedes, Alexandra; Blanco, Ginesa; Pintado, José M.; Coelho, Paulo J.; Freire, Cristina; Clara Pereira. Corresponding author: Clara Pereira. "Tuning the Photochromic Properties of WO3-Based Materials toward High-Performance Light-Responsive Textiles". ACS Applied Optical Materials 1 8 (2023): 1434-1451. http://dx.doi.org/10.1021/acsaom.3c00188.
    Published • 10.1021/acsaom.3c00188
  18. Helena Sant’Ovaia; Cláudia Cruz; Alexandra Guedes; Helena Ribeiro; Patrícia Santos; Sónia Pereira; Jorge Espinha Marques; et al. "Contamination Fingerprints in an Inactive W (Sn) Mine: The Regoufe Mine Study Case (Northern Portugal)". Minerals (2023): https://doi.org/10.3390/min13040497.
    10.3390/min13040497
  19. Caldevilla, P; Gonzalez-Menendez, L; Martin-Crespo, T; Vindel, E; Guedes, A; Berrezueta, E; Castanon, AM; Gomez-Fernandez, F. "The Pen?a do Seo W-Sn deposit, NW Iberia: Petrology, fluid inclusions and O-H-S isotopes". ORE GEOLOGY REVIEWS (2023):
    10.1016/j.oregeorev.2023.105361
  20. Gomes, V; Bermudez, R; Mateus, N; Guedes, A; Lorenzo, JM; de Freitas, V; Cruz, L. "FoodSmarTag: An innovative dynamic labeling system based on pyranoflavylium-based colorimetric films for real-time monitoring of food freshness". FOOD HYDROCOLLOIDS (2023):
    10.1016/j.foodhyd.2023.108914
  21. Elsayed Mousa; Xianfeng Hu; Ludvig Ånnhagen; Guozhu Ye; Antonella CORNELIO; Ario FAHIMI; Elza Bontempi; et al. "Characterization and Thermal Treatment of the Black Mass from Spent Lithium-Ion Batteries". Sustainability (2022): https://www.mdpi.com/2071-1050/15/1/15.
    10.3390/su15010015
  22. Patrícia Jordão; Alexandra Guedes; Nuno Pimentel. "Raman microspectroscopy applied to flint provenance at the chalcolithic settlement of Zambujal (Torres Vedras, Portugal)". Archaeometry (2022): https://doi.org/10.1111/arcm.12791.
    10.1111/arcm.12791
  23. Iwona Kuzniarska-Biernacka; Ana Cláudia Santos; Bruno Jarrais; Bruno Valentim; Alexandra Guedes; Cristina Freire; Andreia F. Peixoto. "Application of Fe-rich coal fly ashes to enhanced reduction of 4-nitrophenol". Cleaner Chemical Engineering (2022): 100019-100019. https://doi.org/10.1016/j.clce.2022.100019.
    10.1016/j.clce.2022.100019
  24. Ana Cláudia Santos; Alexandra Guedes; David French; Aurora Futuro; Bruno Valentim. "Integrative Study Assessing Space and Time Variations with Emphasis on Rare Earth Element (REE) Distribution and Their Potential on Ashes from Commercial (Colombian) Coal". Minerals 12 2 (2022): 194-194. https://doi.org/10.3390/min12020194.
    10.3390/min12020194
  25. Fahimi, A; Bontempi, E; Fiameni, L; Guedes, A; Guimaraes, R; Moreira, K; Santos, AC; et al. "Incineration of Aviary Manure: The Case Studies of Poultry Litter and Laying Hens Manure". WASTE AND BIOMASS VALORIZATION (2022):
    10.1007/s12649-022-01739-4
  26. Nunes, MS; Pereira, C; Guedes, A; Santos, AC; Valentim, B; Freire, C. "Assessment of coal fly ash char as a substituting material of graphite with electrocatalytic activity for the oxygen reduction reaction". SUSTAINABLE CHEMISTRY AND PHARMACY (2022):
    10.1016/j.scp.2022.100705
  27. Guedes, Alexandra. "Graphene@Metal Sulfide/Oxide Nanocomposites as Novel Photo-Fenton-like Catalysts for 4-Nitrophenol Degradation". European Journal of Inorganic Chemistry (2021): http://dx.doi.org/10.1002/ejic.202100700.
    10.1002/ejic.202100700
  28. Guedes, Alexandra. "Contrasts in maceral textures in progressive metamorphism versus near-surface hydrothermal metamorphism". International Journal of Coal Geology 246 (2021): 103840-103840. http://dx.doi.org/10.1016/j.coal.2021.103840.
    10.1016/j.coal.2021.103840
  29. Guedes, Alexandra. "Coal bottom ash processing for capitalization according to circular economy concept". Minerals Engineering 170 (2021): 107055-107055. http://dx.doi.org/10.1016/j.mineng.2021.107055.
    10.1016/j.mineng.2021.107055
  30. Andrea Schito; Alexandra Guedes; Bruno Valentim; Amanda Vergara Sassarini; Sveva Corrado. "A Predictive Model for Maceral Discrimination by Means of Raman Spectra on Dispersed Organic Matter: A Case Study from the Carpathian Fold-and-Thrust Belt (Ukraine)". Geosciences 11 5 (2021): 213-213. https://doi.org/10.3390/geosciences11050213.
    10.3390/geosciences11050213
  31. Alexandra Guedes; Bruno Valentim. "Editorial for Special Issue “Minerals and Elements from Fly Ash and Bottom Ash as a Source of Secondary Raw Materials”". Minerals (2021): https://doi.org/10.3390/min11050438.
    10.3390/min11050438
  32. Sónia Pereira; Maria Fernández-González; Alexandra Guedes; Ilda Abreu; Helena Ribeiro. "The Strong and the Stronger: The Effects of Increasing Ozone and Nitrogen Dioxide Concentrations in Pollen of Different Forest Species". Forests 12 1 (2021): 88-88. https://doi.org/10.3390/f12010088.
    10.3390/f12010088
  33. Fernandes, DM; Abdelkader Fernandez, VK; Badenhorst, C; Bialecka, B; Guedes, A; Predeanu, G; Santos, AC; et al. "Coal chars recovered from fly ash as promising electrocatalysts for oxygen reduction reaction". INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021):
    10.1016/j.ijhydene.2021.08.009
  34. Guimarães, R; Guedes, A; Valentim, BRV. "CHARACTERIZATION, CONCENTRATION OF BIOCHAR AND TITANSPHERES AND HEAVY METALS ASSESSMENT OF QUERCUS SUBER CORK POWDER FLY ASH FRACTIONS". Journal of Solid Waste Technology and Management (2021):
    10.5276/jswtm/2021.605
  35. Charlotte Badenhorst; Cláudia Santos; Juan Lázaro-Martínez; Barbara Bialecka; Mihai Cruceru; Alexandra Guedes; Renato Guimarães; et al. "Assessment of Graphitized Coal Ash Char Concentrates as a Potential Synthetic Graphite Source". Minerals 10 11 (2020): 986-986. https://doi.org/10.3390/min10110986.
    10.3390/min10110986
  36. Seyedalireza Khatibi; Arash Abarghani; Kouqi Liu; Alexandra Guedes; Bruno Valentim; Mehdi Ostadhassan. "Backtracking to Parent Maceral from Produced Bitumen with Raman Spectroscopy". Minerals 10 8 (2020): 679-679. https://doi.org/10.3390/min10080679.
    10.3390/min10080679
  37. Rui S. Costa; Alexandra Guedes; André M. Pereira; Clara Pereira. "Fabrication of all-solid-state textile supercapacitors based on industrial-grade multi-walled carbon nanotubes for enhanced energy storage". Journal of Materials Science (2020): https://doi.org/10.1007/s10853-020-04709-0.
    10.1007/s10853-020-04709-0
  38. Rafael G. Morais; Natalia Rey-Raap; Rui S. Costa; Clara Pereira; Alexandra Guedes; José L. Figueiredo; M. Fernando R. Pereira. "Hydrothermal Carbon/Carbon Nanotube Composites as Electrocatalysts for the Oxygen Reduction Reaction". Journal of Composites Science 4 1 (2020): 20-20. https://doi.org/10.3390/jcs4010020.
    10.3390/jcs4010020
  39. Medunic, G.; Grigore, M.; Dai, S.; Berti, D.; Hochella, M.F.; Mastalerz, M.; Valentim, B.; Guedes, A.; Hower, J.C.. "Characterization of superhigh-organic-sulfur Raša coal, Istria, Croatia, and its environmental implication". International Journal of Coal Geology 217 (2020): http://www.scopus.com/inward/record.url?eid=2-s2.0-85075040793&partnerID=MN8TOARS.
    10.1016/j.coal.2019.103344
  40. Moreira, K.S.; Guedes, A.; Ribeiro, H.; Valentim, B.. "Petrographic and micro-Raman spectroscopy study of inertinite discrete structureless bodies, fusinite, secretinite, and ‘ovoid’ bodies infilling fusinite". International Journal of Coal Geology 221 (2020): http://www.scopus.com/inward/record.url?eid=2-s2.0-85081545401&partnerID=MN8TOARS.
    10.1016/j.coal.2020.103444
  41. Fahimi, A.; Bilo, F.; Assi, A.; Dalipi, R.; Federici, S.; Guedes, A.; Valentim, B.; et al. "Poultry litter ash characterisation and recovery". Waste Management 111 (2020): 10-21. http://www.scopus.com/inward/record.url?eid=2-s2.0-85085258776&partnerID=MN8TOARS.
    10.1016/j.wasman.2020.05.010
  42. Pereira, SG; Guedes, A; Abreu, I; Ribeiro, H. "Testing the Raman parameters of pollen spectra in automatic identification". AEROBIOLOGIA (2020):
    10.1007/s10453-020-09669-1
  43. Valentim, B; Couto, H; French, D; Golding, SD; Guimaraes, F; Guedes, A; O'Keefe, JMK; et al. "Could hot fluids be the cause of natural pyrolysis at the ragged edge of Herrin coal, Millport 7 1/2 ' quadrangle, Hopkins County, Kentucky?". INTERNATIONAL JOURNAL OF COAL GEOLOGY (2020):
    10.1016/j.coal.2020.103603
  44. Valentim, B.; Abagiu, A.T.; Anghelescu, L.; Flores, D.; French, D.; Gonçalves, P.; Guedes, A.; et al. "Assessment of bottom ash landfilled at Ceplea Valley (Romania) as a source of rare earth elements". International Journal of Coal Geology 201 (2019): 109-126. http://www.scopus.com/inward/record.url?eid=2-s2.0-85057857492&partnerID=MN8TOARS.
    10.1016/j.coal.2018.11.019
  45. Guimarães, R.; Guedes, A.; Valentim, B.. "Identification and Characterization of Ti-Spheres (Titanspheres) in Cork Powder Fly Ash". Waste and Biomass Valorization (2019): http://www.scopus.com/inward/record.url?eid=2-s2.0-85061198482&partnerID=MN8TOARS.
    10.1007/s12649-019-00609-w
  46. Lima, L.; Guedes, A.; Noronha, F.. "Tungsten mineralization associated with the Argemela microgranite (Central Portugal)". Journal of Iberian Geology (2019): http://www.scopus.com/inward/record.url?eid=2-s2.0-85074358293&partnerID=MN8TOARS.
    10.1007/s41513-019-00113-z
  47. Rodrigues, M.; Lopes, J.; Guedes, A.; Sarraguça, J.; Sarraguça, M.. "Considerations on high-throughput cocrystals screening by ultrasound assisted cocrystallization and vibrational spectroscopy". Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy (2019): http://www.scopus.com/inward/record.url?eid=2-s2.0-85076568128&partnerID=MN8TOARS.
    10.1016/j.saa.2019.117876
  48. "Separation of unburned carbon from coal conversion ash: Development and assessment of a dry method". Coal Combustion and Gasification Products, 11, 89-96 (2019): https://doi.org/10.4177/CCGP-D-19-00002.1.
    doi: 10.4177/CCGP-D-19-00002.1
  49. Sousa, Rui; Violeta Ramos; Guedes, Alexandra; Ana Botelho de Sousa; Fernando Noronha; Mário Machado Leite. "Flotation of lithium ores to obtain high-grade Li2O concentrates. Are there any mineralogical limitations?". International Journal of Mining, Materials, and Metallurgical Engineering (IJMMME) 5 (2019): 7-18.
    Published
  50. Valentim, B.; Bialecka, B.; Gonçalves, P.A.; Guedes, A.; Guimarães, R.; Cruceru, M.; Calus-Moszko, J.; et al. "Undifferentiated inorganics in coal fly ash and bottom ash: Calcispheres, magnesiacalcispheres, and magnesiaspheres". Minerals 8 4 (2018): http://www.scopus.com/inward/record.url?eid=2-s2.0-85047878153&partnerID=MN8TOARS.
    10.3390/min8040140
  51. Pinto, T.V.; Fernandes, D.M.; Guedes, A.; Cardoso, N.; Durães, N.F.; Silva, C.; Pereira, C.; Freire, C.. "Photochromic polypropylene fibers based on UV-responsive silica@phosphomolybdate nanoparticles through melt spinning technology". Chemical Engineering Journal 350 (2018): 856-866. http://www.scopus.com/inward/record.url?eid=2-s2.0-85048301709&partnerID=MN8TOARS.
    10.1016/j.cej.2018.05.155
  52. Bruno Jarrais; Alexandra Guedes; Cristina Freire. "Selectively oxidized carbon nanocatalysts for the oxidation of cis-cyclooctene". New Journal of Chemistry (2018): https://doi.org/10.1039/C7NJ03706F.
    10.1039/C7NJ03706F
  53. Valentim, B.; Gonçalves, P.; Guedes, A.; Popescu, L.G.; Predeanu, G.. "Petrographic and SEM/EDS characterization of bottom ash fractions obtained using magnetic separation equipment". WSEAS Transactions on Environment and Development 14 (2018): 526-530. http://www.scopus.com/inward/record.url?eid=2-s2.0-85061284955&partnerID=MN8TOARS.
  54. Sousa, R.; Ramos, V.; Guedes, A.; Noronha, F.; De Sousa, A.B.; Leite, M.M.; Seltmann, R.; Dolgopolova, A.. "The Alvarrões-Gonçalo Li project: An example of sustainable lithium mining". Advances in Geosciences 45 (2018): 1-5. http://www.scopus.com/inward/record.url?eid=2-s2.0-85050249848&partnerID=MN8TOARS.
    10.5194/adgeo-45-1-2018
  55. Plácido, A.; Pereira, C.; Guedes, A.; Barroso, M.F.; Miranda-Castro, R.; de-los-Santos-Álvarez, N.; Delerue-Matos, C.. "Electrochemical genoassays on gold-coated magnetic nanoparticles to quantify genetically modified organisms (GMOs) in food and feed as GMO percentage". Biosensors and Bioelectronics 110 (2018): 147-154. http://www.scopus.com/inward/record.url?eid=2-s2.0-85053414886&partnerID=MN8TOARS.
    10.1016/j.bios.2018.03.042
  56. Jarrais, B.; Guedes, A.; Freire, C.. "Heteroatom-Doped Carbon Nanomaterials as Metal-Free Catalysts for the Reduction of 4-Nitrophenol". ChemistrySelect 3 6 (2018): 1737-1748. http://www.scopus.com/inward/record.url?eid=2-s2.0-85042107640&partnerID=MN8TOARS.
    10.1002/slct.201702706
  57. Madureira-Carvalho, Á.; Ribeiro, H.; Newman, G.; J. Brewer, M.; Guedes, A.; Abreu, I.; Noronha, F.; Dawson, L.. "Geochemical analysis of sediment samples for forensic purposes: characterisation of two river beaches from the Douro River, Portugal". Australian Journal of Forensic Sciences (2018): http://www.scopus.com/inward/record.url?eid=2-s2.0-85055495025&partnerID=MN8TOARS.
    10.1080/00450618.2018.1533037
  58. Schito, A.; Corrado, S.; Trolese, M.; Aldega, L.; Caricchi, C.; Cirilli, S.; Grigo, D.; et al. "Assessment of thermal evolution of Paleozoic successions of the Holy Cross Mountains (Poland)". Marine and Petroleum Geology 80 (2017): 112-132. http://www.scopus.com/inward/record.url?eid=2-s2.0-85002487049&partnerID=MN8TOARS.
    10.1016/j.marpetgeo.2016.11.016
  59. Neves, V.; Guedes, A.; Valentim, B.; Campos, J.; Freitas, V.. "High incidence of otolith abnormality in juvenile European flounder Platichthys flesus from a tidal freshwater area". Marine Biology Research 13 9 (2017): 933-941. http://www.scopus.com/inward/record.url?eid=2-s2.0-85026851912&partnerID=MN8TOARS.
    10.1080/17451000.2017.1331041
  60. Schito, A.; Corrado, S.; Trolese, M.; Aldega, L.; Caricchi, C.; Cirilli, S.; Grigo, D.; et al. "Reply to Narkiewicz (2017) comment on “Thermal evolution of Paleozoic successions of the Holy Cross Mountains (Poland)”". Marine and Petroleum Geology 88 (2017): 1114-1122. http://www.scopus.com/inward/record.url?eid=2-s2.0-85026648771&partnerID=MN8TOARS.
    10.1016/j.marpetgeo.2017.07.018
  61. Dai, S.; Bartley, R.; Bartley, S.; Valentim, B.; Guedes, A.; O'Keefe, J.M.K.; Kus, J.; Mastalerz, M.; Hower, J.C.. "Organic geochemistry of funginite (Miocene, Eel River, Mendocino County, California, USA) and macrinite (Cretaceous, Inner Mongolia, China)". International Journal of Coal Geology 179 (2017): 60-71. http://www.scopus.com/inward/record.url?eid=2-s2.0-85019873758&partnerID=MN8TOARS.
    10.1016/j.coal.2017.05.015
  62. Valentim, B.; Shreya, N.; Paul, B.; Gomes, C.S.; Sant'Ovaia, H.; Guedes, A.; Ribeiro, J.; et al. "Characteristics of ferrospheres in fly ashes derived from Bokaro and Jharia (Jharkand, India) coals". International Journal of Coal Geology 153 (2016): 52-74. http://www.scopus.com/inward/record.url?eid=2-s2.0-84949256243&partnerID=MN8TOARS.
    10.1016/j.coal.2015.11.013
  63. Fuertes-Fuente, M.; Cepedal, A.; Lima, A.; Dória, A.; Ribeiro, M.A.; Guedes, A.. "The Au-bearing vein system of the Limarinho deposit (northern Portugal): Genetic constraints from Bi-chalcogenides and Bi-Pb-Ag sulfosalts, fluid inclusions and stable isotopes". Ore Geology Reviews 72 P1 (2016): 213-231. http://www.scopus.com/inward/record.url?eid=2-s2.0-84938310794&partnerID=MN8TOARS.
    10.1016/j.oregeorev.2015.07.009
  64. Valentim, B.; Flores, D.; Guedes, A.; Shreya, N.; Paul, B.; Ward, C.R.. "Vermicular kaolinite relics in fly ash derived from Bokaro and Jharia coals (Jharkhand, India)". International Journal of Coal Geology 162 (2016): 151-157. http://www.scopus.com/inward/record.url?eid=2-s2.0-84974679298&partnerID=MN8TOARS.
    10.1016/j.coal.2016.06.011
  65. Rebelo, S.L.H.; Guedes, A.; Szefczyk, M.E.; Pereira, A.M.; Araújo, J.P.; Freire, C.. "Progress in the Raman spectra analysis of covalently functionalized multiwalled carbon nanotubes: Unraveling disorder in graphitic materials". Physical Chemistry Chemical Physics 18 18 (2016): 12784-12796. http://www.scopus.com/inward/record.url?eid=2-s2.0-84973547805&partnerID=MN8TOARS.
    10.1039/c5cp06519d
  66. Valentim, B.; Flores, D.; Guedes, A.; Guimarães, R.; Shreya, N.; Paul, B.; Ward, C.R.. "Notes on the occurrence of phosphate mineral relics and spheres (phosphospheres) in coal and biomass fly ash". International Journal of Coal Geology 154-155 (2016): 43-56. http://www.scopus.com/inward/record.url?eid=2-s2.0-84951310565&partnerID=MN8TOARS.
    10.1016/j.coal.2015.12.009
  67. Valentim, B.; Flores, D.; Guedes, A.; Shreya, N.; Paul, B.; Ward, C.R.. "Notes on the occurrence of char plerospheres in fly ashes derived from Bokaro and Jharia coals (Jharkhand, India) and the influence of the combustion conditions on their genesis". International Journal of Coal Geology 158 (2016): 29-43. http://www.scopus.com/inward/record.url?eid=2-s2.0-84960078107&partnerID=MN8TOARS.
    10.1016/j.coal.2016.02.006
  68. Predeanu, G.; Popescu, L.G.; Abagiu, T.A.; Panaitescu, C.; Valentim, B.; Guedes, A.. "Characterization of bottom ash of Pliocene lignite as ceramic composites raw material by petrographic, SEM/EDS and Raman microspectroscopical methods". International Journal of Coal Geology 168 (2016): 131-145. http://www.scopus.com/inward/record.url?eid=2-s2.0-84998865566&partnerID=MN8TOARS.
    10.1016/j.coal.2016.08.004
  69. Valentim, B.; Algarra, M.; Guedes, A.; Ruppert, L.F.; Hower, J.C.. "Notes on the origin of copromacrinite based on nitrogen functionalities and d13C and d15N determined on samples from the Peach Orchard coal bed, southern Magoffin County, Kentucky". International Journal of Coal Geology 160-161 (2016): 63-72. http://www.scopus.com/inward/record.url?eid=2-s2.0-85008625618&partnerID=MN8TOARS.
    10.1016/j.coal.2016.05.004
  70. Pinto, T.V.; Fernandes, D.M.; Pereira, C.; Guedes, A.; Blanco, G.; Pintado, J.M.; Pereira, M.F.R.; Freire, C.. "Lanthano phosphomolybdate-decorated silica nanoparticles: Novel hybrid materials with photochromic properties". Dalton Transactions 44 10 (2015): 4582-4593. http://www.scopus.com/inward/record.url?eid=2-s2.0-84929380296&partnerID=MN8TOARS.
    10.1039/c5dt00090d
  71. Shreya, N.; Valentim, B.; Paul, B.; Guedes, A.; Pinho, S.; Ribeiro, J.; Ward, C.R.; Flores, D.. "Multi-technique study of fly ash from the Bokaro and Jharia coalfields (Jharkhand state, India): A contribution to its use as a geoliner". International Journal of Coal Geology 152 (2015): 25-38. http://www.scopus.com/inward/record.url?eid=2-s2.0-84947080344&partnerID=MN8TOARS.
    10.1016/j.coal.2015.10.006
  72. Fernandes, C.; Pereira, C.; Guedes, A.; Rebelo, S.L.H.; Freire, C.. "Gold nanoparticles decorated on bingel-thiol functionalized Multiwall carbon nanotubes as an efficient and robust catalyst". Applied Catalysis A: General 486 (2014): 150-158. http://www.scopus.com/inward/record.url?eid=2-s2.0-84919709849&partnerID=MN8TOARS.
    10.1016/j.apcata.2014.08.031
  73. Freitas, M.; Canhota, A.; Carolino, A.; Guedes, A.; Noronha, F.. "Hydrothermal fluids in granitic pegmatites | Fluidos hidrotermais em pegmatitos graníticos". Comunicacoes Geologicas 101 (2014): 787-790. http://www.scopus.com/inward/record.url?eid=2-s2.0-84939795278&partnerID=MN8TOARS.
  74. Carvalho, Á.; Dawson, L.; Ribeiro, H.; Mayes, R.; Guedes, A.; Abreu, I.; Noronha, F.. "Multidisciplinary characterization of sediments from two Portuguese river beaches for forensic application,Caracterização multidisciplinar de sedimentos de duas praias fluviais do norte de Portugal para aplicação forense". Comunicacoes Geologicas 101 Special Is (2014): 1225-1229. http://www.scopus.com/inward/record.url?eid=2-s2.0-84995680581&partnerID=MN8TOARS.
  75. Fernandes, C.; Pereira, C.; Fernández-García, M.P.; Pereira, A.M.; Guedes, A.; Fernández-Pacheco, R.; Ibarra, A.; et al. "Tailored design of CoxMn1-xFe2O 4 nanoferrites: A new route for dual control of size and magnetic properties". Journal of Materials Chemistry C 2 29 (2014): 5818-5828. http://www.scopus.com/inward/record.url?eid=2-s2.0-84903954166&partnerID=MN8TOARS.
    10.1039/c4tc00429a
  76. Guedes, A.; Ribeiro, H.; Fernández-González, M.; Aira, M.J.; Abreu, I.. "Pollen Raman spectra database: Application to the identification of airborne pollen". Talanta 119 (2014): 473-478. http://www.scopus.com/inward/record.url?eid=2-s2.0-84889681598&partnerID=MN8TOARS.
    10.1016/j.talanta.2013.11.046
  77. Ribeiro, C.; Guedes, A.; Valentim, B.; Sant’Ovaia, H.; Ribeiro, H.; Noronha, F.. "Study of variation of sediment properties with forensic objectives,Estudo da variação de propriedades de sedimentos com objetivos forenses". Comunicacoes Geologicas 101 Special Is (2014): 1349-1353. http://www.scopus.com/inward/record.url?eid=2-s2.0-84995596432&partnerID=MN8TOARS.
  78. Carvalho, A.; Ribeiro, H.; Mayes, R.; Guedes, A.; Abreu, I.; Noronha, F.; Dawson, L.. "Organic matter characterization of sediments in two river beaches from northern Portugal for forensic application". Forensic Science International 233 1-3 (2013): 403-415. http://www.scopus.com/inward/record.url?eid=2-s2.0-84887883162&partnerID=MN8TOARS.
    10.1016/j.forsciint.2013.10.019
  79. Valentim, B.; Rodrigues, S.; Ribeiro, S.; Pereira, G.; Guedes, A.; Suárez-Ruiz, I.. "Relationships between the optical properties of coal macerals and the chars resulting from fluidized bed pyrolysis". International Journal of Coal Geology 111 (2013): 80-89. http://www.scopus.com/inward/record.url?eid=2-s2.0-84879027719&partnerID=MN8TOARS.
    10.1016/j.coal.2012.11.017
  80. Queirós, R.B.; Guedes, A.; Marques, P.V.S.; Noronha, J.P.; Sales, M.G.F.. "Recycling old screen-printed electrodes with newly designed plastic antibodies on the wall of carbon nanotubes as sensory element for in situ detection of bacterial toxins in water". Sensors and Actuators, B: Chemical 189 (2013): 21-29. http://www.scopus.com/inward/record.url?eid=2-s2.0-84887125146&partnerID=MN8TOARS.
    10.1016/j.snb.2012.11.112
  81. Prieto, A.C.; Martínez, O.; Souto, J.; Avella, M.; Guedes, A.. "Study of a tabernacle with a remarkable architectural structure: In situ examination using Raman spectroscopy". Journal of Raman Spectroscopy 44 8 (2013): 1156-1162. http://www.scopus.com/inward/record.url?eid=2-s2.0-84882451234&partnerID=MN8TOARS.
    10.1002/jrs.4346
  82. Valentim, B.; Hower, J.C.; O'Keefe, J.M.K.; Rodrigues, S.; Ribeiro, J.; Guedes, A.. "Notes on the origin of altered macerals in the Ragged Edge of the Pennsylvanian (Asturian) Herrin coalbed, Western Kentucky". International Journal of Coal Geology 115 (2013): 24-40. http://www.scopus.com/inward/record.url?eid=2-s2.0-84878898031&partnerID=MN8TOARS.
    10.1016/j.coal.2013.05.001
  83. Guedes, A.; Algarra, M.; Prieto, A.C.; Valentim, B.; Hortelano, V.; Neto, S.; Algarra, R.; Noronha, F.. "Raman microspectroscopy of genuine and fake euro banknotes". Spectroscopy Letters 46 8 (2013): 569-576. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880403939&partnerID=MN8TOARS.
    10.1080/00387010.2013.769007
  84. Fernández-González, M.; Guedes, A.; Abreu, I.; Rodríguez-Rajo, F.J.. "Pla a_1 aeroallergen immunodetection related to the airborne Platanus pollen content". Science of the Total Environment 463-464 (2013): 855-860. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880578538&partnerID=MN8TOARS.
    10.1016/j.scitotenv.2013.06.062
  85. Valentim, B.; Algarra, M.; Guedes, A.; Rodriguez-Borges, J.E.; Da Silva, J.C.G.E.; Suárez-Ruiz, I.. "Coal rank increase and aerial oxidation by a combination of Fourier transform infrared spectroscopy with multivariate analysis". Spectroscopy Letters 46 4 (2013): 277-285. http://www.scopus.com/inward/record.url?eid=2-s2.0-84876181557&partnerID=MN8TOARS.
    10.1080/00387010.2012.728159
  86. Mota, D.A.; Hema Chandra, G.; Ventura, J.; Guedes, A.; Pérez de la Cruz, J.. "Influence of process parameters on the rf sputtered gap thin films". Journal of Materials Science and Technology 29 9 (2013): 821-829. http://www.scopus.com/inward/record.url?eid=2-s2.0-84881222831&partnerID=MN8TOARS.
    10.1016/j.jmst.2013.06.005
  87. Guedes, Alexandra. "Organic Matter Characterization of Sediments in Two River Beaches from Northern Portugal for Forensic Application". (2013):
  88. Pereira, C.; Pereira, A.M.; Fernandes, C.; Rocha, M.; Mendes, R.; Fernández-García, M.P.; Guedes, A.; et al. "Superparamagnetic MFe 2O 4 (M = Fe, Co, Mn) nanoparticles: Tuning the particle size and magnetic properties through a novel one-step coprecipitation route". Chemistry of Materials 24 8 (2012): 1496-1504. http://www.scopus.com/inward/record.url?eid=2-s2.0-84860212590&partnerID=MN8TOARS.
    10.1021/cm300301c
  89. Prieto, A.C.; Guedes, A.; Dória, A.; Noronha, F.; Jiménez, J.. "Quantitative determination of gaseous phase compositions in fluid inclusions by raman microspectrometry". Spectroscopy Letters 45 2 (2012): 156-160. http://www.scopus.com/inward/record.url?eid=2-s2.0-84859207248&partnerID=MN8TOARS.
    10.1080/00387010.2011.628737
  90. Silva, L.F.O.; Sampaio, C.H.; Guedes, A.; Fdez-Ortiz De Vallejuelo, S.; Madariaga, J.M.. "Multianalytical approaches to the characterisation of minerals associated with coals and the diagnosis of their potential risk by using combined instrumental microspectroscopic techniques and thermodynamic speciation". Fuel 94 (2012): 52-63. http://www.scopus.com/inward/record.url?eid=2-s2.0-84856733508&partnerID=MN8TOARS.
    10.1016/j.fuel.2011.11.007
  91. Guedes, A.; Valentim, B.; Prieto, A.C.; Noronha, F.. "Raman spectroscopy of coal macerals and fluidized bed char morphotypes". Fuel 97 (2012): 443-449. http://www.scopus.com/inward/record.url?eid=2-s2.0-84861193537&partnerID=MN8TOARS.
    10.1016/j.fuel.2012.02.054
  92. Guedes, A.; Ribeiro, H.; Valentim, B.; Rodrigues, A.; Sant'Ovaia, H.; Abreu, I.; Noronha, F.. "Characterization of soils from the Algarve region (Portugal): A multidisciplinary approach for forensic applications". Science and Justice 51 2 (2011): 77-82. http://www.scopus.com/inward/record.url?eid=2-s2.0-79956280462&partnerID=MN8TOARS.
    10.1016/j.scijus.2010.10.006
  93. Valentim, B.; Guedes, A.; Rodrigues, S.; Flores, D.. "Case study of igneous intrusion effects on coal nitrogen functionalities". International Journal of Coal Geology 86 2-3 (2011): 291-294. http://www.scopus.com/inward/record.url?eid=2-s2.0-79954627083&partnerID=MN8TOARS.
    10.1016/j.coal.2011.02.008
  94. Bento dos Santos, T.M.; Munhá, J.M.U.; Tassinari, C.C.G.; Noronha, F.M.; Guedes, A.; Fonseca, P.E.; Neto, C.D.; Dória, A.. "P-T-Fluid evolution and graphite deposition during retrograde metamorphism in Ribeira Fold Belt, SE Brazil: Oxygen fugacity, fluid inclusions and C-O-H isotopic evidence". Journal of South American Earth Sciences 31 1 (2011): 93-109. http://www.scopus.com/inward/record.url?eid=2-s2.0-78651518397&partnerID=MN8TOARS.
    10.1016/j.jsames.2010.02.002
  95. Valentim, B.; Guedes, A.; Boavida, D.. "Nitrogen functionality in "oil window" rank range vitrinite rich coals and chars". Organic Geochemistry 42 5 (2011): 502-509. http://www.scopus.com/inward/record.url?eid=2-s2.0-79957920800&partnerID=MN8TOARS.
    10.1016/j.orggeochem.2011.03.008
  96. Guedes, A.; Valentim, B.; Prieto, A.C.; Rodrigues, S.; Noronha, F.. "Micro-Raman spectroscopy of collotelinite, fusinite and macrinite". International Journal of Coal Geology 83 4 (2010): 415-422. http://www.scopus.com/inward/record.url?eid=2-s2.0-77956179614&partnerID=MN8TOARS.
    10.1016/j.coal.2010.06.002
  97. Guedes, A.; Ribeiro, H.; Valentim, B.; Noronha, F.. "Quantitative colour analysis of beach and dune sediments for forensic applications: A Portuguese example". Forensic Science International 190 1-3 (2009): 42-51. http://www.scopus.com/inward/record.url?eid=2-s2.0-67650688056&partnerID=MN8TOARS.
    10.1016/j.forsciint.2009.05.010
  98. Valentim, B.; Hower, J.C.; Soares, S.; Guedes, A.; Garcia, C.; Flores, D.; Oliveira, Á.. "Petrographic characterization of economizer fly ash". Minerals and Metallurgical Processing 26 4 (2009): 208-216. http://www.scopus.com/inward/record.url?eid=2-s2.0-70450213365&partnerID=MN8TOARS.
    10.1007/bf03402540
  99. Valentim, B.; Hower, J.C.; Guedes, A.; Flores, D.. "Scanning electron microscopy and energy-dispersive X-ray spectroscopy of low-sulfur coal fly ash". International Journal of Energy for a Clean Environment 10 1-4 (2009): 147-166. http://www.scopus.com/inward/record.url?eid=2-s2.0-84860825684&partnerID=MN8TOARS.
    10.1615/InterJEnerCleanEnv.2011001526
  100. Marques, M.; Suárez-Ruiz, I.; Flores, D.; Guedes, A.; Rodrigues, S.. "Correlation between optical, chemical and micro-structural parameters of high-rank coals and graphite". International Journal of Coal Geology 77 3-4 (2009): 377-382. http://www.scopus.com/inward/record.url?eid=2-s2.0-58249089322&partnerID=MN8TOARS.
    10.1016/j.coal.2008.06.002
  101. Guedes, A.; Ribeiro, N.; Ribeiro, H.; Oliveira, M.; Noronha, F.; Abreu, I.. "Comparison between urban and rural pollen of Chenopodium alba and characterization of adhered pollutant aerosol particles". Journal of Aerosol Science 40 1 (2009): 81-86. http://www.scopus.com/inward/record.url?eid=2-s2.0-57949093894&partnerID=MN8TOARS.
    10.1016/j.jaerosci.2008.07.012
  102. Charef, A.; Guedes, A.; Noronha, F.; Sousa, M.. "Fossil and present-day hydrothermal fluids from North Tunisia: An example of a dynamic fluid evolution | Fluidos hidrotermales fósiles y actuales del Norte de Túnez: Un ejemplo de una evolución dinámica de fluidos". Cadernos do Laboratorio Xeoloxico de Laxe 34 (2009): 43-58. http://www.scopus.com/inward/record.url?eid=2-s2.0-68249127600&partnerID=MN8TOARS.
  103. Valentim, B; Guedes, A; Flores, D; Ward, C; Hower, J. "Variations in fly ash composition with sampling location: Case study from a Portuguese power plant". CCGP - Coal Combustion and Gasification Products (2009):
    10.4177/ccgp-d-09-00017.1
  104. Charef, Abdelkrim; Guedes, Alexandra; Noronha, Fernando; Sousa, Mónica. "Fossil and present-day hydrothermal fluids from North Tunisia: an example of a dynamic fluid evolution / Fluidos hidrotermales fósiles y atuales del Norte de Túnez: un ejemplo de una evolución dinámica de fluidos". Cadernos Lab. Xeolóxico de Laxe 34 (2009): 43-58.
    Published
  105. Valentim, B.; Hower, J.C.; Flores, D.; Guedes, A.. "Notes on the efficacy of wet versus dry screening of fly ash". Minerals and Metallurgical Processing 25 3 (2008): 143-148. http://www.scopus.com/inward/record.url?eid=2-s2.0-70449565165&partnerID=MN8TOARS.
    10.1007/bf03403400
  106. Guedes, A.; Valentim, B.; Prieto, A.C.; Sanz, A.; Flores, D.; Noronha, F.. "Characterization of fly ash from a power plant and surroundings by micro-Raman spectroscopy". International Journal of Coal Geology 73 3-4 (2008): 359-370. http://www.scopus.com/inward/record.url?eid=2-s2.0-38049033421&partnerID=MN8TOARS.
    10.1016/j.coal.2007.09.001
  107. Valentim, B; Hower, JC; Flores, D; Guedes, A. "Notes on the efficacy of wet versus dry screening of fly ash". Mining, Metallurgy & Exploration (2008):
    10.1007/bf03403400
  108. Prieto, A.C.; Guedes, A.; Dória, A.; Noronha, F.. "Characterization of pigments in a limestone sculpture "las tres generaciones" (Cathedral's museum of Santiago de Compostela, Spain) by optical microscopy and micro-raman spectroscopy". Canadian Journal of Analytical Sciences and Spectroscopy 50 2 (2005): 88-96. http://www.scopus.com/inward/record.url?eid=2-s2.0-72749121606&partnerID=MN8TOARS.
  109. Guedes, A.; Noronha, F.; Prieto, A.C.. "Characterisation of dispersed organic matter from lower Palaeozoic metasedimentary rocks by organic petrography, X-ray diffraction and micro-Raman spectroscopy analyses". International Journal of Coal Geology 62 4 (2005): 237-249. http://www.scopus.com/inward/record.url?eid=2-s2.0-20444498282&partnerID=MN8TOARS.
    10.1016/j.coal.2005.03.016
  110. Prieto, A.C.; Fernandez, E.; Lopez, A.; Guedes, A.; Doria, A.; Lopez, J.A.; Avella, M.; Jimenez, J.; Noronha, F.. "Raman spectroscopy, colourimetry and cathodoluminescence studies of gemstones". Acta Universitatis Carolinae, Geologica 46 1 (2002): 73-74. http://www.scopus.com/inward/record.url?eid=2-s2.0-0038198570&partnerID=MN8TOARS.
  111. Guedes, A.; Noronha, F.; Boiron, M.-C.; Banks, D.A.. "Evolution of fluids associated with metasedimentary sequences from Chaves (North Portugal)". Chemical Geology 190 1-4 (2002): 273-289. http://www.scopus.com/inward/record.url?eid=2-s2.0-0037202295&partnerID=MN8TOARS.
    10.1016/S0009-2541(02)00120-1
  112. Prieto, A.C.; Fernandez, E.; Lopez, A.; Guedes, A.; Dória, A.; Lopez, J.A.; Noronha, F.. "Characterization of pigments in a limestone sculpture "Last tres generaciones" (Cathedral Museum of Santiago de Compostela, Spain) by microRaman spectroscopy". Acta Universitatis Carolinae, Geologica 46 1 (2002): 71-72. http://www.scopus.com/inward/record.url?eid=2-s2.0-0038537243&partnerID=MN8TOARS.
  113. Noronha, F.; Cathelineau, M.; Boiron, M.-C.; Banks, D.A.; Dória, A.; Ribeiro, M.A.; Nogueira, P.; Guedes, A.. "A three stage fluid flow model for Variscan gold metallogenesis in northern Portugal". Journal of Geochemical Exploration 71 2 (2000): 209-224. http://www.scopus.com/inward/record.url?eid=2-s2.0-0034352342&partnerID=MN8TOARS.
    10.1016/S0375-6742(00)00153-9
Thesis / Dissertation
  1. Guedes, Maria Alexandra de Mascarenhas. "Evolução das condições PVTX dos paleofluidos em contextos metamórficos do soco Hercínico". PhD, 2001. http://hdl.handle.net/10216/10071.
  2. "Evolução das condições PVTX dos paleofluidos em contextos metamórficos do soco Hercínico". 2001. https://www.authenticus.pt/P-010-TWW.
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2021 Applications of Raman Spectroscopy in Forensic Science Seminário "Química e Sociedade
FCUP (Porto, Portugal)
2018 Geologia Forense
Universidade de Aveiro (Aveiro, Portugal)
2018 Geoforensics Let's Talk About Science
Univ.ersidade do Porto SPIE Student Chapter (Porto, Portugal)
2018 Aplicações da espectroscopia Raman na investigação forense Mestrado em Química
Universidade do Porto (Porto, Portugal)
2018 Estudo de solos 6as Jornadas de Polícia Científica
Polícia Judiciária (Porto, Portugal)
2018 Aplicações da espectroscopia Raman na investigação forense Seminário de Geologia e Pedologia Forense
IUCS - CESPU (Gandra, Portugal)
2015 A importância do solo na investigação forense Ano Internacional do Solo e da Luz. Dia do solo.
Parque Biológico de Gaia. (Vila Nova de Gaia, Portugal)
2015 Geologia Forense Dia da Cultura Científica
Parque Biológico de Gaia. (Vila Nova de Gaia, Portugal)
2015 Geologia Forense IX Encontro de Professores de Geociências do Alentejo e Algarve
Centro de Ciência Viva do Lousal (Porto, Portugal)
2013 Dados geológicos em ciências forenses jornadas do Quaternário "O Quaternário da Península Ibérica: abordagens metodológicas e linhas de investigação
Universidade do Porto Faculdade de Letras (Porto, Portugal)
2013 Geologia Forense
Escola Secundária de Rio Tinto (Porto, Portugal)
2013 A importância dos materiais geológicos na investigação forense Colóquio Anisotropia da Susceptibilidade Magnética, Tectónica e (Paleo)magnetismo de Materiais
Universidade de Coimbra (Coimbra, Portugal)
2012 Forensic Geology Seminário "Objectos, Práticas e Territórios”
Guimarães - Capital Europeia da Cultura 2012 (Guimarães, Portugal)

Supervision

Thesis Title
Role 		Degree Subject (Type)
Institution / Organization
2022 - Current P-T-X conditions of formation of scheelites from skarns and quartz veins from “Douro Scheelite Belt” (Northern Portugal)
Supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2021/09/01 - Current Fluid Evolution In The Tin And Tungsten Deposits Associated To Laza-Rebordelo-Murçós Shear Zone (Northern Portugal)
Supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2021 - Current Estudo de inclusões fluidas dos filões pegmatíticos litiníferos de Segura
Supervisor
 Master in Geology (Master)
2020 - Current Characterization of the mineralogical and chemical composition of particulate matter present in the atmosphere of contrasting environmental contexts
Supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2018 - 2023 Reciclagem de resíduos de incineração de pó cortiça para recuperação de titânio e carbono e utilização na correção de solos
Co-supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2022 Assessing the rare earth metals and carbon potential of coal ashes from a Portuguese Power Plant and its temporal and lateral variation
Co-supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2019 - 2020 Estudo de solos para aplicação forense através da realização de análises não destrutivas in situ e em laboratório
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências da Nutrição e Alimentação, Portugal
2019 - 2019 The implications of ore deposit typology in the ore concentration process from hypogenic tungsten deposits
Supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2019 - 2019 Fluid evolution in rare-element pegmatites from Central Portugal
Supervisor
 Geociências (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2018 - 2019 Estudo de inclusões fluidas em quartzos associados à volframite do Jazigo da Panasqueira.
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2018 - 2019 Análise e caracterização de solos da região do Porto para aplicaçãoforense.
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2018 - 2018 Análise e caracterização de solos da região do Porto para aplicação forense.
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2017 Caracterização de solos da região de Lisboa para aplicação forense
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2017 Análise e Caracterização de sedimentos do Centro e Sul de Portugal para aplicação forense
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2017 Análise e caracterização de sedimentos do Norte e Centro de Portugal para aplicação forense
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2017 Estudo de inclusões fluidas num pegmatito litinífero da região de Covas do Barroso
Supervisor
 Geomateriais e Recursos Geológicos (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2016 - 2017 Análise combinada de macerais do carvão através de microscopia ótica de luz refletida e micro-espectroscopia Raman
Co-supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2015 - 2016 Mineralizações de Antimónio em Trás-os-Montes – O caso de estudo da mina Sítio da Coitadinha
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2015 - 2016 Concentração e caraterização de esferas de titânio em cinzas volantes de pó de cortiça
Co-supervisor
 Ciências e Tecnologia do Ambiente (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2015 - 2015 Aplicação de Espectroscopia Raman na análise laboratorail de vestígios de cenas de incêndio
Co-supervisor
 Ciências Forenses (PhD)
Universidade do Porto Faculdade de Medicina, Portugal
2014 - 2014 Fluídos hidrotermais em pegmatitos graníticos
Co-supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2011 - 2012 Caracterização de materiais arqueológicos exumados na Necrópole de Las Ruedas em Pintia (Espanha) por Microscopia Ótica, SEM/EDS e Micro-espectroscopia Raman.
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2010 - 2011 Estudo da variação temporal de propriedades de sedimentos com objetivos forenses.
Supervisor
 Geologia (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2007 - 2008 Contribuição para o conhecimento do Campo Aplitopegmatítico Seixoso-Vieiros (Baixo Tâmega). O caso de estudo do Granito da Mina do Outeiro
Co-supervisor
 Geomateriais e Recursos Geológicos (Master)
Universidade do Porto Faculdade de Ciências, Portugal

Event organisation

Event name
Type of event (Role) 		Institution / Organization
2019 - Current "Round Robin Studies Progression - a view towards pseudooperational trials" COST Action CA16101 (2019)
Meeting (President of the Organising Committee)
 Universidade do Porto Faculdade de Ciências, Portugal
2017 - Current I Working Group meeting da Ação Cost: MULTI-modal Imaging of FOREnsic SciEnce Evidence - tools for Forensic Science (2017)
Meeting (President of the Organising Committee)
 Universidade do Porto Faculdade de Ciências, Portugal

Jury of academic degree

Topic
Role 		Candidate name (Type of degree)
Institution / Organization
2021 Avaliação do património geológico e económico do concelho de Bragança.
President of the jury
 Ana Carolina Clemente Pinto Santos Gonçalves (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2021 Elementos químicos leves nos minerais de granitos Variscos de Portugal – Implicações Metalogénicas
President of the jury
 Isabel Patrícia Pereira Martins (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2021 Degradação do DNA de Raízes de Cabelos em Água do Mar – Contributo para a Estimativa do Intervalo Post Mortem e Identificação Genética do Cadáver
President of the jury
 Camila Pontes Rocha (Master)
Universidade do Porto Faculdade de Medicina, Portugal
2021 Comparison of different DNA extraction methods in the scope of the sexual biological forensic analysis
President of the jury
 Íris da Rocha Carriço (Master)
Universidade do Porto Faculdade de Medicina, Portugal
2021 Resistividade elétrica para a avaliação ambiental do subsolo da pedreira de Alijó, Barroso
Supervisor
 Maria Cristina Gomes Marques (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2019 Estudo geológico do Alóctone superior da região de Alimonde (Bragança): implicações na geologia económica da região
President of the jury
 Guilherme de Oliveira Alves Ínsua Pereira (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2018 Atividades de Prospeção Geológica no Jazigo Filoniano de Ouro de Freixo de Numão
President of the jury
 Miguel Ângelo Pinto Pedro (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2017 From soil to plant advanced monitoring with infrared spectroscopy: towards tailor-made strategies for a more accurate and sustainable vineyard management
(Thesis) Arguer
 Miguel Lobo (PhD)
Universidade do Porto Faculdade de Farmácia, Portugal
2017 Estudo das mineralizações de ouro em Rates e Corvos
President of the jury
 André Miguel Almeida Vieira (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2016 Abordagem multidisciplinar às mineralizações de lítio no Campo Aplito-Pegmatítico do Barroso-Alvão, Norte de Portugal
(Thesis) Main arguer
 Cátia Alexandra Gomes Dias (Master)

Committee member

Activity description
Role 		Institution / Organization
2022 - Current Delegada da RED IBEROAMERICANA DE INVESTIGADORES FORENSES (RIIF)
Other
 Universidade do Porto Faculdade de Ciências, Portugal
2021/05/21 - Current Director of Master Course Geomaterials and Geological Resources (Faculty of Sciences University of Porto/ University of Aveiro)
Director
 Universidade do Porto Faculdade de Ciências, Portugal
2021 - Current Chairman of the Scientific Committee Course in Master Course Geomaterials and Geological Resourses
Member
 Universidade do Porto Faculdade de Ciências, Portugal
2021 - Current Chairman of the Program Follow-up Committee Geomaterials and Geological Resources
Director
 Universidade do Porto Faculdade de Ciências, Portugal
2019 - Current Scientific Committee PhD Course Forensic Sciences - University of Porto
Member
 Universidade do Porto Faculdade de Medicina, Portugal
2019 - Current Scientific Committee Master Course Forensic Sciences - University of Porto
Member
 Universidade do Porto Faculdade de Medicina, Portugal
2017 - Current Cost Action CA16101: MULTI-modal Imaging of FOREnsicSciEnce Evidence - tools for Forensic Science
Member
 Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2021 Member of the Scientific Committee Course in Geology
Member
 Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2021 Vice Director of the Geology Course
Director
2017 - 2021 Vice Director of Master Course Geomaterials and Geological Resources (Faculty of Sciences University of Porto/ University of Aveiro)
Director
 Universidade do Porto Faculdade de Ciências, Portugal
2017 - 2021 Member of Program Follow-up Committee Geomaterials and Geological Resources
Member
 Universidade do Porto Faculdade de Ciências, Portugal

Course / Discipline taught

Academic session Degree Subject (Type) Institution / Organization
2019 - Current Forensic Geology Ciências forenses Universidade do Porto Faculdade de Medicina, Portugal

Journal scientific committee

Journal title (ISSN) Publisher
2021 - Current Current Forensic Science (2666-4852) Bentham Science Publishers
2019 - Current Minerals MDPI
2015 - Current Open Journal of Geology (2161-7589) SCIRP
Distinctions

Award

2019 Prémio BERALT best Poster
Congresso Ibérico de Geoquímica , Portugal
2019 Student Poster Presentation Award
American Coal Ash Association, United States
2019 Best Poster
World Congress on Recycling , Spain
2016 Best poster
Congresso da Associação Portuguesa de Ciências Forenses , Portugal
2005 Best poster
World of Fly Ash, India