Photo-electrochemistry

Revolution in electrochemical (bio)sensor technology

Our lab strongly believes that the combination of 1O2 chemistry with electrochemical and redox catalysis is the groundbreaking idea in designing on-site, robust, selective and sensitive (bio)sensors to outcompete current on-site sensing strategies which typically lack sensitivity, selectivity and robustness. 

Key publication: S. Trashin, V. Rahemi, K. Ramji, L. Neven, S. Gorun and K. De Wael                                                                                                Nature Communications (2017) 8, 16108​

Titania based electrochemistry

The features of TiO2 (under illumination) are fully exploited in our lab in the context of photo-electrochemical applications to make horseradish peroxidase based biosensors more environmental friendly by avoiding the direct addition of hydrogen peroxide (H2O2) during the detection of phenolic compounds.

Electrons and holes generated under room light illumination can produce radical species after reaction with water and oxygen. Hydroxyl radical OH, hydroperoxyl radical OOH, and superoxide ion radical O2- are commonly produced reactive species, which participate in the reduction and oxidation reactions and may act as oxidants.

Key publication: V. Rahemi, St. Trashin, Z. Hafideddine, S. Van Doorslaer, V. Meynen, L. Gorton and K. De Wael, Analytical Chemistry (2020) 92, 3643-3649