Ultrathin plasmonic PtCu nanosheets as an efficient peroxidase-like nanozyme for colorimetric detection of H2O2

Abstract

Bimetallic PtCu nanosheets are synthesized as a nanozyme with remarkable peroxidase-like catalytic activity for colorimetric detection of H₂O₂ in the milk, which demonstrates a wide linear range (0.001-5 mM), a low limit of detection (0.58 μM) as well as good anti-interference performance in the analytical application.