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Glucose Biosensors Based on Vertically-Aligned Multi-Walled Carbon Nanotubes

Published online by Cambridge University Press:  31 January 2011

Archana Pandey
Affiliation:
arpandey@mtu.edu, Michigan Technological University, Physics, Houghton, Michigan, United States
Abhishek Prasad
Affiliation:
aprasad@mtu.edu, Michigan Technological University, Physics, Houghton, Michigan, United States
Jason Moscatello
Affiliation:
jpmoscat@mtu.edu, Michigan Technological University, Physics, Houghton, Michigan, United States
Yoke Khin Yap
Affiliation:
ykyap@scholarone.net, None, charlottesville, Virginia, United States
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Abstract

Vertically-aligned multiwalled carbon nanotubes (VA-MWCNTs) were grown using plasma enhanced chemical vapor deposition (PECVD) technique. These VA-MWCNTs were then dip coated by Poly methyl methacrylate (PMMA) followed by annealing. Samples were then polished to expose the tips of CNTs. Biological molecules Glucose Oxidase (GOx) were then immobilized on the exposed tips of these nanoelectrode ensembles. Here we present further characterization of these devices, with results on the detection limits and measurement stability. We found that these sensors can be reused for longer than eight months when kept in proper storage conditions.

Type
Research Article
Copyright
Copyright © Materials Research Society 2010

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