Double Step Electrochemical Etching for Reuse of Gold Screen Printed Electrode.

ABSTRACT: Gold (Au) is of considerable interest for electrochemically active surfaces because thiol-modified chemicals and biomolecules can be easily immobilized through a simple procedure. However, most Au surfaces are damaged after repetitive measurements, making them difficult to reuse. Here, we present a novel electrochemical (EC) etching method for Au surfaces that enables electrode reuse through a simple, nontoxic, and straightforward protocol. This process, referred to as double-step EC etching (DSEE), consists of two sequential steps: (i) a cyclic voltammetry (CV) sweep in a very low concentration of H₂SO₄, followed by (ii) a CV sweep in K₃Fe-(CN)₆. For comparison, alternative etching methods were also evaluated. After the assembly and subsequent d

SUBMITTER: Lee J 

PROVIDER: S-EPMC12547596 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature