Visible-light photoelectrochemical sensor for glutathione based on CoFe2O4-nanosphere-sensitized copper tetraaminophthalocyanine–graphene oxide

Simple, fast, and sensitive detection methods are required for reduced glutathione (GSH), a metabolic substance that acts as an indicator for a variety of diseases and is also found in numerous supplements and drugs. Herein, a sensitive and selective photoelectrochemical (PEC) sensor was developed for GSH detection. The novel PEC sensor was fabricated using CoFe2O4 nanoporous spheres and copper tetraaminophthalocyanine–graphene oxide (CuTAPc-GO)...