Gold-selenium interactions afford stable and reproducible electroactive surfaces, which hold great promise for chemical and biological applications. Modification of electrode substrates with a selenium-based monolayer facilitates the study of solution analytes that would otherwise be impeded by surface chemistry. Using a combination of electrochemical and spectroscopic techniques, the behavior of selenocystine and its reactivity with physiological reductants has been characterized at modified gold substrates. Evidence for the formation of a selenium monolayer will be presented and a mechanism for the observed voltammetric profile proposed.

Electrochemical characterization of selenium-modified gold surfaces

250th National Meeting (2015)

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