Application of Au Nanoparticles–AgCl@Polypyrrole Hybrid Material to Amperometric Biosensor
AgCl@polypyrrole(PPy) nanocomposites were synthesized through in situ chemical oxidation polymerization by using poly(vinylpyrrolidane) (PVP) as dispersant, and some Au colloid were prepared by using KBH4 as reductant and sodium citrate as stabilizer, then the Au nanoparticles-AgCl@PPy hybrid material was formed by physical chemical reaction. Fourier transform infrared spectrometer (FTIR) and electron dispersive spectrometer (EDS) data suggested that the hybrid material were composed of Au, AgCl and PPy. An amperometric glucose biosensor was fabricated by adsorbing glucose oxidase (GOx) to an Au nanoparticles-AgCl@PPy hybrid material modified platinum electrode. The biosensor exhibited a super highly sensitive response to H2O2.
X. Z. Ren et al., "Application of Au Nanoparticles–AgCl@Polypyrrole Hybrid Material to Amperometric Biosensor", Advanced Materials Research, Vol. 92, pp. 23-28, 2010