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Title: Direct-growth of Polyaniline Nanowires for Enzyme-immobilization and Glucose Detection
Authors: 國立臺灣師範大學化學系
Y.-Y. Horng
Y.-K. Hsu
A. Ganguly
Chia-Chun Chen
L.-C. Chen
K.-H. Chen
Issue Date: 1-Apr-2009
Publisher: Elsevier
Abstract: Amperometric enzyme biosensor based on the glucose oxidase (GOx) incorporated polyaniline nanowires (PANI-NWs) on carbon cloth (CC) electrode was demonstrated. The simple, direct-growth of PANI-NWs on CC, via electrochemical polymerization, provides free-standing, template-independent, hence almost (interfacial) defects-free nanostructures. The defect-free interfaces, along with the excellently sensitive organic nanostructured-surface, as evident from its significantly large effective surface area (24 times the geometric area) for redox-sensing, allows efficient entrapment/immobilization and sensing of biomolecules, via rapid electron-transfer at NWs-CC. The GOx-immobilized PANI-NWs/CC, even in initial unoptimized stage, exhibited an excellent sensitivity, ∼2.5 mA mM−1 cm−2, to glucose, over detection range 0–8 mM, adequate for clinical monitoring of human glucose levels. The report clearly reveals a cost-effective simple system possessing enormous potentiality for biosensors, bioenergy and bioelectronics applications.
ISSN: 1388-2481
Other Identifiers: ntnulib_tp_C0301_01_056
Appears in Collections:教師著作

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