Nanostructuring Platinum Nanoparticles on Multilayered Graphene Petal Nanosheets for Electrochemical Biosensing

摘要: Hybridization of nanoscale metals and carbon nanotubes into composite nanomaterials has produced some the best-performing sensors to date. The challenge remains develop scalable nanofabrication methods that are amenable development with broad sensing ranges. A nanostructured biosensor based on multilayered graphene petal nanosheets (MGPNs), Pt nanoparticles, a biorecognition element (glucose oxidase) is presented. combination zero-dimensional nanoparticles two-dimensional support arrayed in third dimension creates sensor platform exceptional characteristics. versatility demonstrated by altering performance (i.e., sensitivity, detection limit, linear range) through changing size, density, morphology electrodeposited MGPNs. This work enables robust design demonstrates enhanced glucose sensitivity (0.3 µM 0.01–50 mM range), long stable shelf-life (>1 month), high selectivity over electroactive, interfering species commonly found human serum samples.