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Scaffolding Carbon Nanotubes into Single-Molecule Circuitry

Published online by Cambridge University Press:  01 February 2011

Philip G. Collins ,
John G. Coroneus ,
Gregory A. Weiss  and
Philip G. Collins
Philip G. Collins
Affiliation:
collinsp@uci.edu, University of California, Irvine, Physics and Astronomy, 4129 F. Reines Hall, Irvine, CA, 92697-4575, United States, 949-824-9961, 949-824-2174
John G. Coroneus
Affiliation:
jcoroneu@uci.edu, University of California, Irvine, Dept. of Molecular Biology and Biochemistry, Irvine, CA, 92697, United States
Gregory A. Weiss
Affiliation:
gweiss@uci.edu, University of California, Irvine, Dept. of Molecular Biology and Biochemistry, Irvine, CA, 92697, United States
Philip G. Collins
Affiliation:
collinsp@uci.edu, University of California, Irvine, Dept. of Physics and Astronomy, Irvine, CA, 92697, United States
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Abstract

While nanowires and nanotubes have been shown to be electrically sensitive to various chemicals, not enough is known about the underlying mechanisms to control or tailor this sensitivity. By limiting the chemically sensitive region of a nanostructure to a single binding site, single molecule precision can be obtained in order to study the chemoresistive response. We have developed techniques using single-walled-carbon-nanotube (SWCNT) circuits that enable single-site experimentation and illuminate the dynamics of chemical interactions. Discrete changes in the circuit conductance reveal chemical processes happening in real-time and allow SWCNT sidewalls to be deterministically broken, reformed, and conjugated to target species.

Keywords

devicessensornanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1018: Symposium EE – Applications of Nanotubes and Nanowires , 2007 , 1018-EE08-07
Copyright
Copyright © Materials Research Society 2007

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