نتایج جستجو برای: carbon nanotube sensor

تعداد نتایج: 467532  

2003
Victor T. S. Wong Wen J. Li

Bulk multi-walled carbon nanotube (MWNT) were successfully and repeatably manipulated by AC electrophoresis to form resistive elements between Au microelectrodes and were demonstrated to potentially serve as novel temperature sensor and simple electronic circuit elements. We have measured the temperature coefficient of resistance (TCR) of these MWNT bundles and also integrated them into constan...

2012
Fathali Gholami-Orimi Farshad Taleshi Pourya Biparva Hassan Karimi-Maleh Hadi Beitollahi Hamid R. Ebrahimi Mohamad Shamshiri Hasan Bagheri Masoud Fouladgar Ali Taherkhani

We propose chlorpromazine (CHP) as a new mediator for the rapid, sensitive, and highly selective voltammetric determination of homocysteine (Hcy) using multiwall carbon nanotube paste electrode (MWCNTPE). The experimental results showed that the carbon nanotube paste electrode has a highly electrocatalytic activity for the oxidation of Hcy in the presence of CHP as a mediator. Cyclic voltammetr...

Journal: :Analytical chemistry 2010
Syed Mubeen Ting Zhang Nicha Chartuprayoon Youngwoo Rheem Ashok Mulchandani Nosang V Myung Marc A Deshusses

Herein, we demonstrate that highly sensitive conductometric gas nanosensors for H(2)S can be synthesized by electrodepositing gold nanoparticles on single-walled carbon nanotube (SWNT) networks. Adjusting the electrodeposition conditions allowed for tuning of the size and number of gold nanoparticles deposited. The best H(2)S sensing performance was obtained with discrete gold nanodeposits rath...

2003
Michael Griebel Jan Hamaekers

The elastic moduli of polymer-carbon nanotube composites are examined by molecular dynamics simulations of a single-walled carbon nanotube embedded in polyethylene. The overall system is modeled with a many-body bond order potential due to Brenner. Alternatively, only the carbon nanotube is modeled with Brenner’s potential and the polyethylene matrix is modeled by a united-atom potential. For t...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2007
Ngamta Thamwattana James M Hill

Continuum based models are presented here for certain boron nitride and carbon nanostructures. In particular, certain fullerene interactions, C(60)-C(60), B(36)N(36)-B(36)N(36) and C(60)-B(36)N(36), and fullerene-nanotube oscillator interactions, C(60)-boron nitride nanotube, C(60)-carbon nanotube, B(36)N(36)-boron nitride nanotube and B(36)N(36)-carbon nanotube, are studied using the Lennard-...

The fractal degree of adsorption on the multi-walled carbon nanotube has been investigated. The fractal-like Langmuir kinetics model has been used to obtain the fractal degree of ion adsorption on multi-walled carbon nanotube. The behavior of the fractal-like kinetics equation was compared with some famous rate equations like Langmuir, pseudo-first-order and pseudo-second-order equations. It is...

Journal: :Physical review letters 2005
Motoo Fujii Xing Zhang Huaqing Xie Hiroki Ago Koji Takahashi Tatsuya Ikuta Hidekazu Abe Tetsuo Shimizu

Although the thermal properties of millimeter-sized carbon nanotube mats and packed carbon nanofibers have been readily measured, measurements for a single nanotube are extremely difficult. Here, we report a novel method that can reliably measure the thermal conductivity of a single carbon nanotube using a suspended sample-attached T-type nanosensor. Our experimental results show that the therm...

2012
G. E. Grechnev V. A. Desnenko A. V. Fedorchenko A. S. Panfilov Yu. A. Kolesnichenko

Related Articles Oscillatory characteristics of carbon nanotubes inside carbon nanotube bundles J. Appl. Phys. 112, 124310 (2012) High-voltage electric-field-induced growth of aligned “cow-nipple-like” submicro-nano carbon isomeric structure via chemical vapor deposition J. Appl. Phys. 112, 114310 (2012) Probing molecular interactions on carbon nanotube surfaces using surface plasmon resonance ...

Journal: :Biosensors & bioelectronics 2013
Mitchell B Lerner Jennifer Dailey Brett R Goldsmith Dustin Brisson A T Charlie Johnson

We examined the potential of antibody-functionalized single-walled carbon nanotube (SWNT) field-effect transistors (FETs) to use as a fast and accurate sensor for a Lyme disease antigen. Biosensors were fabricated on oxidized silicon wafers using chemical vapor deposition grown carbon nanotubes that were functionalized using diazonium salts. Attachment of Borrelia burgdorferi (Lyme) flagellar a...

2004
L. Valentini V. Bavastrello I. Armentano C. Nicolini J. M. Kenny

The high surface area, size, hollow geometry and chemical inertness remarkable properties of CNTs make them attractive for demanding applications in the field of gas sensing. To date studies on possible applications of CNTs have been focused either on individual single-walled carbon nanotubes (SWNTs) as sensitive materials towards O2, NO2 and NH3 [1-4] or on multi-walled carbon nanotubes (MWNTs...

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