نتایج جستجو برای: wall carbon nanotube swcnt

تعداد نتایج: 447809  

2007
Brett R. Goldsmith John G. Coroneus Gregory A. Weiss Philip G. Collins

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 us...

2016
Xinxin Yan Wen Yang Zengwu Shao Shuhua Yang Xianzhe Liu

Carbon nanomaterials are becoming increasingly significant in biomedical fields since they exhibit exceptional physicochemical and biocompatible properties. Today, the stem cells offer potentially new therapeutic approaches in tissue engineering and regenerative medicine. However, the induction of differentiation into specific lineages remains challenging, which provoked us to explore the biome...

Journal: :international journal of nanoscience and nanotechnology 2011
j. davoodi h. alizade

in this study, we have investigated radius dependence of hydrogen storage within armchair (n,n) single walled carbon nanotubes (swcnt) in a square arrays. to this aim, we have employed equilibrium molecular dynamics (md) simulation. our simulations results reveal that radius of carbon nanotubes are an important and influent factor in hydrogen distribution inside carbon nanotubes and consequentl...

2005
T. Ramanathan F. T. Fisher R. S. Ruoff L. C. Brinson

Single-walled carbon nanotubes (SWCNT) functionalized with amino groups were prepared via chemical modification of carboxyl groups introduced on the carbon nanotube surface. Two different approaches (amide and amine-moieties) were used to produce the amino-functionalized nanotubes. The aminotermination allows further chemistry of the functionalized SWCNTs and makes possible covalent bonding to ...

Journal: :Chemosensors 2022

In this series of two papers, the humidity sensing a carbon nanotube’s (CNTs) network-based material is studied through quartz crystal microbalance (QCM) sensors. To aim, quartzes functionalized with different amounts were realized, exposed to levels, and characterized. first paper, theoretical framework presented, whereas second one presents experimental study. This paper discusses at water ad...

Journal: :Journal of the American Chemical Society 2007
Ee Ling Gui Lain-Jong Li Keke Zhang Yangping Xu Xiaochen Dong Xinning Ho Pooi See Lee Johnson Kasim Z X Shen John A Rogers S G Mhaisalkar

We report on the sensing mechanism of electrical detection of deoxyribonucleic acid (DNA) hybridization for Au- and Cr-contacted field effect transistors based on single-walled carbon nanotube (SWCNT) networks. Barrier height extraction via low-temperature electrical measurement provides direct evidence for the notion that the energy level alignment between electrode and SWCNTs can be affected ...

Journal: :transport phenomena in nano and micro scales 2014
m. jafari m. farhadi k. sedighi

the effects of single walled carbon nanotube (swcnt) on mixed convection in a cavity are investigated numerically. the problem is studied for different richardson numbers (0.1-10), volume fractions of nanotubes (0-1%), and aspect ratio of the cavity (0.5-2.5) when the grashof number is equal to 103. the volume fraction of added nanotubes to water as base fluid are lowers than 1% to make dilute ...

2010
Alessandro Ruggiero Carlos H Villa Jason P Holland Shanna R Sprinkle Chad May Jason S Lewis David A Scheinberg Michael R McDevitt

Single wall carbon nanotube (SWCNT) constructs were covalently appended with radiometal-ion chelates (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid [DOTA] or desferrioxamine B [DFO]) and the tumor neovascular-targeting antibody E4G10. The E4G10 antibody specifically targeted the monomeric vascular endothelial-cadherin (VE-cad) epitope expressed in the tumor angiogenic vessels. The co...

Journal: :The Analyst 2011
Joon-Hyung Jin Joon Hyub Kim Jun-Yong Lee Nam Ki Min

A single walled carbon nanotube (SWCNT)-based three-electrode system was fully integrated on glass substrates using a standard microfabrication process and electrochemically characterized using cyclic voltammetry. O(2) plasma functionalization of the SWCNT film working electrode for achieving high sensitivity was voltammetrically optimized with respect to the plasma power and treatment time. Ch...

Journal: :Nano letters 2013
Michael L Geier Pradyumna L Prabhumirashi Julian J McMorrow Weichao Xu Jung-Woo T Seo Ken Everaerts Chris H Kim Tobin J Marks Mark C Hersam

In this Letter, we demonstrate thin-film single-walled carbon nanotube (SWCNT) complementary metal-oxide-semiconductor (CMOS) logic devices with subnanowatt static power consumption and full rail-to-rail voltage transfer characteristics as is required for logic gate cascading. These results are enabled by a local metal gate structure that achieves enhancement-mode p-type and n-type SWCNT thin-f...

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