Please use this identifier to cite or link to this item:
標題: Preparation of multiwalled carbon nanotubes-platinum-Nafion-glucose oxidase nanobiocomposite and its application to glucose biosensor
作者: Tsai, Y.C.
Chien, H.Y.
關鍵字: multiwalled carbon nanotubes;Pt nanoparticles;Nafion;glucose oxidase;biosensor;electrocatalytic properties;high dispersion;field emitter;electrodes;nanoparticles;oxidation;particles;films;nadh;mediators
Project: Journal of Nanoscience and Nanotechnology
期刊/報告no:: Journal of Nanoscience and Nanotechnology, Volume 7, Issue 4-5, Page(s) 1611-1617.
Platinum (Pt) nanoparticles were electrode posited within multiwalled carbon nanotubes-Nafion-glucose oxidase (MWNTs-Nafion-GOx) nanobiocomposite by a potentiostatic method. The morphology and nature of the resulting MWNTs-Pt-Nafion-GOx nanobiocomposite were characterized by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDS). The electrocatalytic properties of the MWNTs-Pt-Nafion-GOx nanobiocomposite film modified glassy carbon electrode were characterized by cyclic voltammetry and amperometry in the presence of hydrogen peroxide. The glucose biosensor sensitivity was strongly influenced by the deposits of Pt nanoparticles and amount of GOx concentration within the MWNTs-Pt-Nafion-GOx nanobiocomposite film. The optimized glucose biosensor displayed a sensitivity of 640 nA mM(-1), a linear range of up to 4 mM, a detection limit of 4 mu M, and a response time of less than 4 s at an operating potential of +500 mV versus Ag/AgCl (3 M KCl).
ISSN: 1533-4880
DOI: 10.1166/jnn.2007.344
Appears in Collections:化學工程學系所

Show full item record

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.