PMID- 22293518
OWN - NLM
STAT- MEDLINE
DCOM- 20120827
LR  - 20211021
IS  - 1361-6528 (Electronic)
IS  - 0957-4484 (Print)
IS  - 0957-4484 (Linking)
VI  - 23
IP  - 8
DP  - 2012 Mar 2
TI  - Electronic sensitivity of a single-walled carbon nanotube to internal electrolyte 
      composition.
PG  - 085203
LID - 10.1088/0957-4484/23/8/085203 [doi]
AB  - Carbon nanotubes (CNTs) are well known as materials for nanoelectronics and show 
      great potential to be used as the sensing elements in chemical and biological 
      sensors. Recently, CNTs have been shown to be effective nanofluidic channels and 
      the transport of substances through small diameter CNTs is intrinsically fast, 
      selective, and operates at the single molecule level. It has been shown that the 
      transport characteristics of semiconducting single-walled CNT (SWCNT) field 
      effect transistors (FETs) are sensitive to internal water wetting. We report here 
      that the characteristics of semiconducting SWCNT FETs are also sensitive to the 
      concentration, pH and ion type of the ionic solution when the electrolyte is 
      inside the CNT. Such sensitivity is not observed at the outside surface of a 
      semiconducting SWCNT. This opens a new avenue for building new types of CNT 
      sensor devices in which the SWCNT concurrently functions as a nanochannel and an 
      electronic detector.
FAU - Cao, D
AU  - Cao D
AD  - Department of Physics, Arizona State University, Tempe, AZ 85287, USA.
FAU - Pang, P
AU  - Pang P
FAU - Liu, H
AU  - Liu H
FAU - He, J
AU  - He J
FAU - Lindsay, S M
AU  - Lindsay SM
LA  - eng
GR  - RC2 HG005625-01/HG/NHGRI NIH HHS/United States
GR  - 1R21HG004770-01/HG/NHGRI NIH HHS/United States
GR  - R21 HG004770/HG/NHGRI NIH HHS/United States
GR  - RC2 HG005625/HG/NHGRI NIH HHS/United States
GR  - 1RC2HG005625-01/HG/NHGRI NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, Non-U.S. Gov't
DEP - 20120201
PL  - England
TA  - Nanotechnology
JT  - Nanotechnology
JID - 101241272
RN  - 0 (Electrolytes)
RN  - 0 (Nanotubes, Carbon)
SB  - IM
MH  - Electric Conductivity
MH  - Electrolytes/*chemistry
MH  - Equipment Design
MH  - Equipment Failure Analysis
MH  - Microfluidics/*instrumentation
MH  - Nanotubes, Carbon/*chemistry/ultrastructure
MH  - *Transducers
MH  - *Transistors, Electronic
PMC - PMC3343206
MID - NIHMS348381
EDAT- 2012/02/02 06:00
MHDA- 2012/08/28 06:00
PMCR- 2013/03/02
CRDT- 2012/02/02 06:00
PHST- 2012/02/02 06:00 [entrez]
PHST- 2012/02/02 06:00 [pubmed]
PHST- 2012/08/28 06:00 [medline]
PHST- 2013/03/02 00:00 [pmc-release]
AID - 10.1088/0957-4484/23/8/085203 [doi]
PST - ppublish
SO  - Nanotechnology. 2012 Mar 2;23(8):085203. doi: 10.1088/0957-4484/23/8/085203. Epub 
      2012 Feb 1.