Fig. 4From: Electrochemical H2O2 biosensor based on horseradish peroxidase encapsulated protein nanoparticles with reduced graphene oxide-modified gold electrodeCyclic voltammetric responses of: a Bare Au electrode, HRP/rGO/Au electrode, and HEPNP/rGO/Au electrode in the presence of 100 μM H2O2, b HEPNP/rGO/Au electrode as a function of H2O2 concentration, and c Linear plot of the reduction current peak at the HEPNP/rGO/Au electrode as a function of H2O2 concentration (n = 3)Back to article page