Regenerative Strategy of Gold Electrodes for Long-Term Reuse of Electrochemical Biosensors.

ABSTRACT: Gold is of considerable interest for electrochemical active surfaces because thiol-modified chemicals and biomolecules can be easily immobilized with a simple procedure. However, most gold surfaces are damaged with repetitive measurements, so they are difficult to reuse. Here we demonstrate a novel electrochemical cleaning method of gold surfaces to reuse electrodes with a simple protocol that is easy and nontoxic. This electrochemical cleaning consists of two steps by using different solutions. The 1st step is a cyclic voltammetry sweep using a very low concentration of sulfuric acid, and the 2nd step is a cyclic voltammetry sweep using potassium ferricyanide. Different cleaning methods were also considered for comparison. Consequently, after assembling and desorption of the cell and anti

SUBMITTER: Lee J 

PROVIDER: S-EPMC9835648 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature