Singlet oxygen based electroanalysis.

This SEP grant will be used to introduce a new sensing paradigm based on the use of singlet oxygen (1O2), which was the topic of a first ERC CoG application in 2020 (second round), and entitles a resubmission. We will connect the power of 1O2 chemistry with the sustainability of electrochemistry to offer a breakthrough in robust, selective and sensitive (bio)sensor technologies. The use of 1O2 for electroanalysis is a largely undiscovered research field with no insight into the underlying principles of this new paradigm. The main fundamental research question is "How does 1O2, generated by a soluble photosensitizer or immobilized on a (semi)conducting surface, contribute to a photoelectrochemical response? What if quenchers, targets or bio-photosensitizers are present?".This project will pave the way to create cost-efficient, ultrasensitive electrochemical biosensors for on-site environmental monitoring and point-of-care medical analysis. It will open a whole new field of research based on 1O2 redox chemistry, beyond sensing applications, such as metal-free electrochemical photocatalysis, and the creation of more efficient materials for water purification and light energy conversion.

Keywords:SENSORS

Disciplines:Electrochemical methods, Biosensors