le 26 juin 2020
Publié le 12 février 2021 Mis à jour le 12 juillet 2022

e-Guest Lecture : Priscilla Baker


Electroanalytical protocols as early warning systems and profiling tools in the context of emerging contaminants “two steps forward… one step back”

Priscilla Baker, professeure en Chimie à l'Université du Cap - Afrique du Sud, est actuellement fellow-in-residence à CY AS, invitée du laboratoire LPPI

Electroanalysis and electrocatalysis are electrochemically driven analytical protocols for measurement and monitoring of a wide range of environmental pollutants, depending on the chemical transformations that give rise to the pollution effect. These chemical transformations include highly specific binding reactions, electrolysis, energy efficient catalytic conversion of chemical reactants, adsorption reactions, diffusion controlled reactions and coupled chemical reactions. Each environmental problem requires careful analysis of the chemical nature of the problem before the best suited methods for analysis and monitoring may be developed. The research undertaken seeks to develop selective and sensitive electrochemically driven sensors for the detection and profiling of antibiotics and other pharmaceuticals, in aqueous systems, within the broader context of profiling emerging contaminants  - a critical task identified by global  environmental watchdogs.  Electroanalysis may be employed as an early warning technology for the identification of emerging threats from waterborne sources, but also as a highly sensitive and selective quantitative tool.  In both cases, a well resolved and unequivocal analytical reporting signal is critical. The presentation will showcase some of the sensing strategies we have developed  in order to  address the various chemical transformations that yield viable transduction for quantitative analysis.  The latest trends and protocols in the context of emerging contaminants will be addressed, with a focus on preliminary work on antibiotic screening, focusing on sulphonamide detection as a case study.

Télécharger son CV

Date : jeudi 25 juin 2020 de 17h00 à 18h00 

La vidéo est en ligne sur la chaîne YouTube de CY AS