Ionic Liquid-Polypyrrole-Gold Composites as Enhanced Enzyme Immobilization Platforms for Hydrogen Peroxide Sensing.

ABSTRACT: In this work, three different aqueous solutions containing imidazole-based ILs with different alkyl chain lengths ([C_nmim]Br, n = 2, 6, 12) were adopted as the medium for the synthesis of ionic liquid-polypyrrole (IL-PPy) composites. Herein, the ILs undertook the roles of the pyrrole solvent, the media for emulsion polymerization of PPy and PPy dopants, respectively. The electrochemical performances of the three IL-PPy composites on a glassy carbon electrode (GCE) were investigated by electrochemical experiments, which indicated that [C₁₂mim]Br-PPy (C₁₂-PPy) composites displayed better electrochemical performance due to their larger surface area and firmer immobilization on the GCE. Further, C₁₂-PPy/GCE were decorated with Au microparticles by el

SUBMITTER: Li M 

PROVIDER: S-EPMC6387225 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature