نتایج جستجو برای: carbon nanotube sensor

تعداد نتایج: 467532  

2011
Yongho Choi Seok-Mo Hong Byungjoo Park

Single walled carbon nanotube shows excellent chemical and physical properties and it has been extensively explored for novel applications. It has been shown that single walled carbon nanotube can be used to improve sensitivity of sensors such as bio sensors, gas sensors and mechanicals sensor by its unique properties. As a mechanical sensor, a mechanical force deforms the single walled carbon ...

2006
K. J. Loh J. P. Lynch

Since the discovery of carbon nanotubes by Iijima in 1991, researchers have utilized carbon nanotubes for a wide array of applications including nanoelectronics, sensors, and inductively coupled antennas. While current and novel strain transducers can measure strain adequately, their large form factor and cabled data acquisition systems render their use in harsh environments difficult. It has b...

2006
Zhang Yong Liu Junhua Li Xin Zhu Changchun

The carbon nanotube (CNT) film is used to fabricate the novel carbon nanotube film cathode (CNTFC) gas sensor, and the working voltage of the novel sensor at atmospheric pressure decreases to several hundred volts from the value of more than thousand volts of the traditional discharge gas sensor, however it is limited by that the space charge in the gap is very hard to diffuse after the breakdo...

2005
Junya Suehiro Guangbin Zhou Hiroshi Imakiire Weidong Ding Masanori Hara

The authors have previously demonstrated an electrokinetic fabrication method of a carbon nanotube (CNT) gas sensor using dielectrophoresis. One advantage of the technique was that one could quantify the amount of trapped nanotubes on a real time basis by monitoring electrical impedance of the sensor (dielectrophoretic impedance measurement, DEPIM). In the present study, we extended the DEPIM t...

A rapid electrochemical technique was developed to determine 8-Hydroxyquinoline (8HQ). In the current study, the anionic surfactant Sodium lauryl sulfate (SLS) was immobilized on the multi-walled carbon nanotube (MWCNT) paste surface for the fabrication of electrode to detect 8HQ in phosphate buffer solution (PBS) of pH 7.0. The response of SLS modified carbon nanotube paste electrode (SLSMCNTP...

Baha Öndeş Mihrican Muti,

Disposable, selective and low-cost carbon nanotube modified electrodes were fabricated for the electrochemical detection of neonicotinoid insecticide, Clothianidin (CLT). Almost 2 folds’ increase at Clothianidin reduction signal was obtained by using single-walled carbon nanotube modified electrodes (SWCNT-PGE) compared to unmodified electrodes. These nanomaterials modified electrodes developed...

2013
KOJI TAKAHASHI JUN HIROTANI YUTAKA YAMADA

Interfacial thermal transport of multi-walled carbon nanotube is explored by using T-type sensor. Reliable signals of heat flow through an individual nanotube were obtained. Estimated thermal boundary resistances between the end of CNT and solid surfaces do not show the clear dependency on material that has been predicted by the diffuse mismatch model treating graphite. This discrepancy is main...

Journal: :Nature nanotechnology 2007
Xinjian Zhou Jose M Moran-Mirabal Harold G Craighead Paul L McEuen

Carbon nanotube transistors combine molecular-scale dimensions with excellent electronic properties, offering unique opportunities for chemical and biological sensing. Here, we form supported lipid bilayers over single-walled carbon nanotube transistors. We first study the physical properties of the nanotube/supported lipid bilayer structure using fluorescence techniques. Whereas lipid molecule...

2009
Baris Atakan Ozgur B. Akan

The development of carbon nanotube transmitter and receiver circuits operating with radio frequency (RF) allows current wireless technologies to function at nano-scale environments. This vision also enables a very large set of new applications such as coordinated disease detection, drug delivery, and biological and chemical attack defense. Especially, coordinated nanoscale data acquisition is o...

2010
Ming Xia Xingguo Xiong

Abstract: In recent years, MEMS/NEMS (Micro-/Nano Electro Mechanical Systems) sensors have attracted tremendous interest among researchers due to their low cost, quick response time, as well as high sensitivity and selectivity. In this paper, an ultra sensitive acetone sensor based on carbon nanotube (CNT) structure is proposed. In this device, a carbon nanotube is anchored to a substrate in on...

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