Self-Assembled Peptide Hydrogel-Engineered Au/SCN/PCN-222 Photocathode for Antifouling Photoelectrochemical Immunoassay of S100B.
A robust antifouling photoelectrochemical (PEC) immunoassay based on a self-assembled peptide hydrogel-engineered Au/SCN/PCN-222 photocathode for sensitive S100B detection exhibited high sensitivity, excellent antifouling performance, and good selectivity, enabling reliable analysis in complex biological matrices.