Carboxyl functionalized mesoporous polymer: A novel peroxidase-like catalyst for H2O2 detection

Abstract

In this communication, we demonstrate our recent findings that carboxyl functionalized mesoporous polymer (CFMP) obtained by solvothermal polymerization of divinylbenzene and methacrylic acid possesses intrinsic peroxidase-like activity and can catalyze the oxidation of peroxidase substrate 3,3,5,5,-tetramethylbenzidine (TMB) by H₂O₂ to develop a blue color in aqueous solution, providing a simple approach to colorimetric detection of H₂O₂ with a linear detection range from 1 μM to 8 μM (r = 0.997) and a detection limit of 0.4 μM.