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Investigador principal

Prof. Francisco Laborda (Director del GEAS)

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Francisco Laborda is head of the GEAS and Professor in the Department of Analytical Chemistry at the University of Zaragoza. He obtained his PhD in Analytical Chemistry from the same university in 1991.

He completed research stages at the Technical University of Delft (Netherlands) and the Food Science Laboratory of the Ministry of Agriculture, Fisheries and Food (United Kingdom), specializing in different atomic spectrometry and separation techniques.

His current research lines focus on the development of platforms of analytical methods for the detection, characterization and quantification of physicochemical species of elements (both dissolved and particulate) in complex samples, with special interest in natural colloids, engineered nanoparticles and nano/microplastics.

In the last years he has made significant contributions in the field of analytical nanometrology, merging analytical chemistry and nanometrology, and single particle ICP-MS.

Dr. Juan R. Castillo

 (In memory)


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Prof Castillo is Emeritus Full Professor in the Analytical Chemistry Department and member of the Environmental Science Institute of the University of Zaragoza.He got the BSC (1970) and the PhD (1974) degree chemistry with doctorate award.

He was Assistant (1972-74), Associated (1974-82), and full professor since 1982 in the University of Zaragoza. He is involved in Analytical Chemistry teaching from 1972.

Prof Castillo was visiting researcher and professor in Southampton University (UK) 1979, Cincinnati University (USA) 2001-02, and Lawrence Berkeley National Laboratory (USA) 2004-05.

He founded the Environmental Science Institute (IUCA) of the University of Zaragoza in 2008 and headed it until his retirement date in September 2016, being named Emeritus Full Professor. He was also head of the research group in Analytical Spectroscopy and Sensors from 1982 to 2016.

He is author or coauthor of more than 320 papers indexed in the JCR of the WOS, 4 books and 5 chapters.

Prof Castillo has coordinated 26 national projects, 3 European projects, as well as 34 contracts with private companies. He was supervisor of 40 PhD and has presented more than 600 contributions and lectures in domestic and international conferences.

His main research topics are listed in this web site, and they are mainly new Analytical Techniques and Methods in Environmental Nanoscience and Nanotechnology (Nanometrology) and Electrochemical Biosensors.

Prof. JR Castillo is an experienced sailor and skier, and he is an unconditional supporter of the Real Madrid football team.

Dr. Juan C. Vidal

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Dr. Juan C. Vidal (ORCID 0000-0003-4599-796X) got the BSc (1982) and the PhD (1984) degrees at the University of Zaragoza. He was Assistant Professor (1982 to 1986), Titular Professor (1986-2018) and is nowadays Full Professor since the year 2018 at the University of Zaragoza.
He is member of the IUCA (Environmental Sciences Research Institute) and since the final of 1980’s member of GEAS. His current teaching is conducted in the Department of Analytical Chemistry (Faculty of Sciences) at the University of Zaragoza.
His curriculum vitae includes more than 60 scientific research publications in indexed journals, more than 130 communications in national and international meetings and active participation (or coordination) of more than 30 projects of research with public and private institutions.

His research work relates to theoretical and practical development of electrochemical biosensors, working with enzymes, antibodies and aptamers as catalytic and affinity ligands. He is expert in voltammetric techniques fore the characterization of nanomaterials, the improvement of the charge-transfer of bio-reagents with electrodes, the characterization of affinity ligands (electrochemical, SPR, immunoassay), and the analytical applications of immunosensors and aptasensors in food and clinical samples.

Dr. Vidal is an active competitor in three-cushion billiards national tournaments, and he likes cycling mountain bike, digital image and video editing (Apple/macintosh), and voyaging along the world to remote countries.



Dr. Eduardo Bolea

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Eduardo Bolea obtained his PhD degree in 2002 from University of Zaragoza (Spain). After graduating he joined the staff as a Lecturer (associated professor) in Analytical Chemistry at the same University, enjoying different post-doctoral stays at the National Research Council of Canada\, Ghent University (Belgium) and the Forschungszentrum Karlsruhe (Germany). Since 2010 he is professor in the Analytical Chemistry Department at the University of Zaragoza.

His research interest is the Environmental Analytical Nanometrology, which involves the characterization, identification and quantification of both natural particles and antropogenic nanomaterials in complex systems. Special attention is devoted to the determination of metal-based nanoparticles present in consumer products and their identification and characterization in different media of environmental interest by Asymmetric Flow Field-Flow Fractionation (AsFlFFF) coupled to ICP-MS. Also the study of natural colloids as nanovectors of contaminants in natural systems is another area of research.

Dra. María S. Jimémez García-Alcalá

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María S. Jiménez is a member of the GEAS group since the early 90’s. She started her researching walking as grant holder and got her PhD in 1994. This year began her teaching working as assistant professor in the Analytical Chemistry Department until the end of 1997. Since then, she is associate professor in the same department of the University of Zaragoza.

Different researching fields are included in her scientific experience. The first period was dedicated to the development of Flow Techniques (FIA) and Sample Introduction Systems to Atomic Spectrometry and inorganic Mass Spectrometry (ICP-MS). The second period was focused on Speciation Analysis working with Electrophoretic techniques and Laser Ablation as introduction system to ICP-MS.

Nowadays her researching field is mainly the development of characterization methods of Nanomaterials (and derivatives species) by using separation techniques such as Electrophoresis and Hydrodynamic Chromatography and ICP-MS (or SP-ICP-MS) as detection techiques.



Dra. Josefina Pérez-Arantegui

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Josefina Pérez-Arantegui is senior lecturer in the Department of Analytical Chemistry of the University of Zaragoza (Spain). She received her Ph.D. in Analytical Chemistry from the University of Zaragoza in 1991.

She did her post-doctoral research at the «Centre de Recherche et de Restauration des Musées de France» (Louvre Museum, Paris, France). Her research interests are in Art and Archaeological Chemistry, especially in Analytical Chemistry in ancient inorganic materials (ceramic, glass, glaze, metal and pigments) and in the application of new analytical methods.

In the last years, she has also extended her research field to the development of analytical methods in organic materials (especially oils and resins) in Art and Archaeology. Her articles have appeared in the Journal of the American Ceramic Society, Trends in Analytical Chemistry, Analytical and Bioanalytical Chemistry and various journals related to analytical chemistry in cultural heritage, archaeometry and archaeological sciences. She has also authored several book chapters and two articles in the Encyclopaedia of Analytical Science and in the Encyclopaedia of Archaeology.

Dra. María T. Gómez

Dra. M. Teresa Baraguán

Dra. Ana Guitart

Isabel Abad Alvaro

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Isabel Abad Álvaro studied her Bachelor’s and Master’s Degrees in Chemistry at the University of Zaragoza (Spain). She obtained her PhD in Analytical Science on Chemistry at the University of Zaragoza in September 2017 with Cum Laude and “European Doctorate” Mentions, under the supervision of Prof Francisco Laborda and Dr Eduardo Bolea Morales. In her PhD Thesis she worked on the development of a platform of analytical methods for the analysis of nanomaterials in environmental and biological systems based on the use of inductively coupled plasma mass spectrometry (ICP-MS), both in single particle mode (SP-ICP-MS) and coupled to asymmetrical field flow fractionation (AF4). During this period, she carried out two research secondments, one of them at the University of Santiago de Compostela (Spain) at the group of Prof Pilar Bermejo Barrera and the other one at Laboratoire de Chimie Analytique, Bioinorganique et Environnementale at Pau (France) with Prof Joanna Szpunar.

In July 2018, Dr Isabel Abad Álvaro joined the renowned international research centre UK’s National Measurement Laboratory for chemical and bio-measurement (NML) in LGC (Teddington, United Kingdom), where she held a permanent position as Researcher in the Inorganic Analysis Team led by the Science Fellow Heidi Goenaga-Infante. Her work here was mainly focused on the area of Nanometrology, being strongly involved in the development of multi-modal approaches (e.g. single particle-ICP-MS, AF4, TEM, PTA, MADLS) for the characterisation of nanomaterials in complex samples and their application to solve problems in advanced manufacturing and healthcare. Some of this work was performed in collaboration with scientists across multiple disciplines and from key academic groups and national measurement institutes worldwide. Likewise, she played a major role on the development of reference methods and nanomaterials for quality control and product innovation, as well as helping the industry to comply with existing regulation in the areas of Nanoscience and Nanomedicine, Food Safety and Environmental Control and Protection. She also contributed to the drafting of an ISO Technical report (ISO/TR) and an ISO Technical Specification (ISO/TS) on the use of SP-ICP-MS for the determination of nanoparticle number concentration.

Since January 2022, she occupies a postdoctoral position in the Department of Analytical Chemistry of the University of Zaragoza, within the framework of grants for the requalification of the Spanish university system, modality María Zambrano for the attraction of international talent.

Celia Trujillo Lacasa

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Celia Trujillo Lacass is graduated in Food Science and Technology by the University of Zaragoza. She studied the Master «Environmental Nanotechnology» in the University of Zaragoza. Now she is a PhD student in program of «Analytical Science in Chemistry» and she is developing her research at GEAS since 2017.Her research is based in the study of «Nano and Microplastics in the environment: presence, effects and their role as Trojan Horse of other pollutants».

Ana Cris Giménez

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Ana Cris Gimenez is graduated in Chemistry (2016) by the University of Zaragoza. She studied the Master “Nanotecnología Medioambiental” (2017) in the University of Zaragoza. Now she is PhD student in GEAS since 2018. In this year, she received a predoctoral fellowship from the Diputación General de Aragón. Her research is “Nanomateriales a base de plata como bactericidas para el control de la resistencia a antimicrobianos: papel de las especies de plata”.

Khaoula Ben Jeddou

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PhD: analytical science in chemistry, University of Zaragoza
Thesis title: Toward a sustainable use of new nanobactericides in the frontier of fight with antimicrobial resistance
In September 2019, the first stage researcher Khaoula Ben jeddou joined the GEAS group and was awarded a pre-doctoral contract in part of the IberusTalent call within the Agri-Food and Nutrition Area and for the research line presented by the the Iberus excellence action group: “Towards a sustainable use of new nanobactericides in the frontier of antimicrobial resistance”, of which Prof. Juan R.Castillo is the principal investigator. This project has received funding from the European Union´s Horizon 2020 research and innovation programme under the Marie Sklowdowska-Curie grant agreement Nº 801586″ and this project has also received funding from the University of Zaragoza- Mecenazgo Santander.

The IberusTalent project is financed by the Marie Slodowska Curie action. The researcher Khaoula Ben Jeddou has a degree in experimental and analytical Biology and has completed two masters, one in Biology and environment and one in food quality and chemistry of natural products. Her doctoral thesis work will be on the development of new nanobactericides with greater capacities and less harm to the environment in the area of influence of the Iberus Campus of international excellence (Ebro valley).

Mariam Bakir Laso

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Mariam Bakir is graduated in Chemistry by the University of Zaragoza. She studied the Master “Química Aplicada y Farmacología” in the University Jaume I (Castellon). Now she is PhD student in GEAS since 2019. Her research is “Nanomateriales base plata como aditivos en alimentación animal: métodos analíticos para el estudio de su bioacumulación, transformaciones e impacto medioambiental”.

Sebastiano Gozzo

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Degree in Biological Sciences in 2015 (Siena, Italy). Master degree in Molecular and Cellular Biology (Siena, Italy) in 2018. Research project and thesis: “Set up of LC-MS/MS ID method for the simultaneous determination of steroids in different biological samples and main applications “

He is currently a pHD student in analytical and environmental chemistry. It’s a co-supervised pHD project between GEAS (University of Zaragoza, ES) and IPREM (UPPA, Pau, FR). The project aims to study interactions and synergy between micropollutants and natural colloids in surface water. The project involves the use of the following methodology: SPE-LC-HR/MS, SPE-LC-MS/MS, DLS, AF4, AF4-ICP-MS, Ecotoxicology assay.

In his free time he likes watch football, movies and TV series. He’s an outdoor type who enjoys hiking and camping.