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A Novel Glucose Biosensor Based on Glucose Oxidase Immobilized on AuPt Nanoparticle – Carbon Nanotube – Ionic Liquid Hybrid Coated Electrode
Author(s) -
Zhang Yafen,
Guo Gaiping,
Zhao Faqiong,
Mo Zhirong,
Xiao Fei,
Zeng Baizhao
Publication year - 2010
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200900306
Subject(s) - glucose oxidase , biosensor , ionic liquid , platinum nanoparticles , amperometry , nanoparticle , carbon nanotube , colloidal gold , platinum , chemistry , electrode , adsorption , materials science , inorganic chemistry , nanotechnology , electrochemistry , catalysis , organic chemistry
A novel amperometric glucose biosensor is presented in this article, which is based on the adsorption of glucose oxidase on gold‐platinum nanoparticle (AuPt NP)‐multiwalled carbon nanotube (MWNT) – ionic liquid (i.e., 1‐octyl‐3‐methylimidazolium hexafluorophosphate, [OMIM]PF 6 ) composite. The gold‐platinum nanoparticles is prepared through direct electrodeposition. Owing to the synergistic action of AuPt nanoparticle, MWNT and [OMIM]PF 6 , the biosensor shows good response to glucose, with wide linear range (0.01 to 9.49 mM), short response time (3 s), and high sensitivity (3.47 μA mM −1 ). With the biosensor the determination of glucose in human serum is performed.