Scaffolding carbon nanotubes into single-molecule circuitry
Scaffolding carbon nanotubes into single-molecule circuitry
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DOI:
10.1557/jmr.2008.0179
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发表时间:
2008-05-01
影响因子:
2.7
通讯作者:
Collins, Philip G.
中科院分区:
文献类型:
--
作者:
Goldsmith, Brett R.;Coroneus, John G.;Collins, Philip G.
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 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.