基本信息
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Bio
TOPICS
Biosensors: Nanostructures and Nanobiotechnology
Electoanalysis: Redox and Chemical Probes (Arendiazonium ions), Antioxidant Distribution
Electrochemistry and Electrocatalysis at tailored interfaces
New electroanalytical methodology applied to Environmental, Food and Health fields
PROFESSIONAL ACTIVITIES
More than 80 scientific contributions, being 85% of them in ISI peer-reviewed journals and 5 book chapters; 11 invited lectures, 98 contributions at national and international meetings, one patent (2014), design of several device (“Work in Solution” Screen Printed Electrodes and Thermostat Cell), commercialized by DropSens (2011), Electrochemical technique validation transferred to Metrohm-Dropsens (2019) and more than €2.5 million in grants from European Union, Spanish Government, Autonomic Government, Vigo University and companies
CURRENT RESEARCH INTERESTS
Her research work applies analytical chemistry methodology, typically electroanalytical techniques, and biochemistry approaches to resolve problems in food, clinical, and environmental analysis, using biosensors and chemical sensors devices and it has resulted in significant contributions to the field of electrochemistry and biochemistry; I have developed of a few new methods for direct determinations of several drugs in biological fluids, by using electroanalytical techniques such as DPP, LSV, SWV and CV Voltammetry with modified solid electrodes (Ph. D. research work in UAM, under supervision of Dr Hernández) and I have designed several bioelectrodes by coupling an immobilized enzyme with an electrochemical sensor, which combines the specifity of enzymatic catalysis with the sensitivity of amperometric electrodes (Postdoctoral research work). She has spent more than one year in the Sensor-Chip Lab. (NMSU, USA.), under supervision of Dr Wang, performing advanced biosensor research work. In particular, she developed several elegant biosensing devices and schemes based on novel modified electrodes for monitoring alcohols in beverages and organic peroxides in drinking water. During 15 years (1993- 2008), she has acted as head of the research group: “Chemical Kinetics and Electrochemistry” in UVIGO. She has started the research work with arenediazonium compounds and she has applied electroanalytical techniques to study its chemical reactivity and to know the association colloid and macromolecular chemistry. My group developed new electroanalytical methods which are applied to study the surfactant aggregate and macromolecular effects on chemical reactivity, in particular, to study dediazoniation mechanisms in a variety of optically transparent and opaque systems in the presence of different substrates, including natural antioxidants such as ascorbic acid. We used these chemical reactions for better understanding the aggregation and macromolecular structures. We also developed novel electrochemical approaches, in tandem with chromatographic and optic techniques, to estimate the association constants of a large number of aryl radicals with colloidal and macromolecular systems and to directly quantify Vitamin C in freshly prepared natural orange juices, without pre-treatment, based on the accelerating effect of vitamin C on the dediazoniation of an arenediazonium ion. For instance, we developed a novel electroanalytical method to help to scientists and technologists correlate the nature of antioxidant, oils and emulsifiers with the distribution and efficiencies of antioxidants in food emulsions. A number of others analytical techniques, including UV/Visible, Fluorescence and HPLC, are also used in our methodology. Since 2008, I have created a new research group: “Electroanalysis and Biosensors” and I am applying the knowledge acquired on aryldiazonium reactivity (chemical and electrochemical) to modify the electrode surfaces in order to obtain the platforms base to immobilize biomolecules, using for this purpose the above mentioned compounds in combination with nanostructures (NPs, NWs, NRods) and carbon materials (CNTs). On the other hand, I have opened other investigation plans and she has started several collaborative actions with national and international researchers that, briefly, are: E Lorenzo (UAM), LM Liz-Marzán (CIC biomaGUNE) and I Pastoriza-Santos/ J Pérez-Juste (UVIGO) in the sensors and biosensors field, using nanostructures and the chemistry of Aryldiazonium Ions; D. Hernández (Dropsens Company) in the characterization of pre-treated Screen-Printed Electrodes; LS Romsted (Rutgers University) in the distribution and efficiency of antioxidants in food models; S Barek/R Ben Chaouacha Chekir (Université La Manouba) in the use of Meriones Shawi rodents as environmental control system for heavy metals; D Geraldo and F Bento (UMNHO) in the detection of biotoxins using electrochemical sensors; MA Sanromán and JM Torres (UVIGO) in pollutants detection and related methodologies to reduce contamination by electroFenton and phytoremediation.
Research Interests
Papers共 78 篇Author StatisticsCo-AuthorSimilar Experts
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crossref(2024)
Sara Caruncho-Pérez, Ana M. Prado-Comesaña,María Arellano,Marta Pazos,M. Ángeles Sanromán,Elisa González-Romero
Aryl Diazonium Salts and Related CompoundsPhysical Chemistry in Actionpp.59-77, (2022)
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