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Redox Protein Noncovalent Functionalization of Double-Wall Carbon Nanotubes: Electrochemical Binder-less Glucose Biosensor

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Abstract:

Double wall carbon nanotubes are noncovalently functionalized with redox protein and such assembly is used for construction of electrochemical binder-less glucose biosensor. Redox protein glucose oxidase performs as biorecognition element and double wall carbon nanotubes act both as immobilization platform for redox enzyme and as signal transducer. The double carbon nanotubes are characterized by cyclic voltammetry and specific surface area measurements; the redox protein noncovalently functionalized double wall carbon nanotubes are characterized in detail by X-ray photoelectron spectroscopy, cyclic voltammetry, amperometry, and transmission electron microscopy.

Keywords: BIOSENSOR; CARBON NANOTUBE; ELECTROCHEMISTRY; GLUCOSE OXIDASE; X-RAY PHOTOELECTRON SPECTROSCOPY

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2007.846

Publication date: 2007-10-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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