title: Non-enzymatic glucose biosensor based on hyperbranched pine-like gold nanostructure.
abstract: Hyperbranched pine-like gold nanostructure was electrodeposited on the polycrystalline gold surface at 0 mV (vs. AgCl) with the assistance of histidine as a soft template. The nanostructure was then applied as a highly sensitive nonenzymatic sensor for glucose. The catalytic activity and sensitivity of the gold nanostructure toward the electrooxidation of glucose was excellent without surface fouling and deterioration effects. The current related to the oxidation of glucose rapidly and linearly depended on its concentration with a sensitivity of 776.8 μA cm(-2)mmol(-1)dm(3), a detection limit of 3.39 μmol dm(-3) with a relative standard deviation of 2.32%.
authors.affiliation: Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Nanomedicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran. Electronic address: hheli7@yahoo.com.
authors.forename: H
authors.initials: H
authors.lastname: Heli
authors.affiliation: Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Nanomedicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran.
authors.forename: O
authors.initials: O
authors.lastname: Amirizadeh
mesh_terms: D015374:Biosensing Techniques; D001786:Blood Glucose / Q000032:analysis*; D055664:Electrochemical Techniques; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D006639:Histidine / Q000737:chemistry; D006801:Humans; D057230:Limit of Detection; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry*; D010084:Oxidation-Reduction
chemical_list: D001786:Blood Glucose; D006639:Histidine; D006046:Gold
keywords: Glucose; Gold; Hierarchical nanostructure; Nonenzymatic biosensor