نتایج جستجو برای: carbon nanotube probe

تعداد نتایج: 374673  

Magnetic force microscope ( MFM ) is a powerful technique for mapping the magnetic force gradient above the sample surface. Herein, single-wall carbon nanotubes (SWCNT) were used to fabricate MFM probe by dielectrophoresis method which is a reproducible and cost-effective technique. The effect of induced voltage on the deposition manner of carbon nanotubes (CNT) on the atomic force microscope (...

Journal: :international journal of nanoscience and nanotechnology 2013
a. h. javid m. gorannevis f. moattar a. mashinchian moradi p. saeeidi

air pollution has always been a major problem in metropolises. volatile organic compounds are one of the major pollutants that are caused by incomplete combustion of fuels in vehicles and gasoline evaporation, especially in fueling stations. removing these pollutants through traditional methods has always been considered. the paper investigates and studies chemical adsorption behavior of benzen...

2014
Sung Hun Jin Jongmin Shin In-Tak Cho Sang Youn Han Dong Joon Lee Chi Hwan Lee Jong-Ho Lee John A. Rogers

Articles you may be interested in A simple drain current model for single-walled carbon nanotube network thin-film transistors Mobilities in ambipolar field effect transistors based on single-walled carbon nanotube network and formed on a gold nanoparticle template Appl. Strain on field effect transistors with single–walled–carbon nanotube network on flexible substrate Complementary voltage inv...

Journal: :Nature communications 2012
Guosong Hong Justin Z Wu Joshua T Robinson Hailiang Wang Bo Zhang Hongjie Dai

Investigating the cellular internalization pathways of single molecules or single nano objects is important to understanding cell-matter interactions, and to applications in drug delivery and discovery. Imaging and tracking the motion of single molecules on cell plasma membranes require high spatial resolution in three dimensions. Fluorescence imaging along the axial dimension with nanometre re...

2012
Dachuan Shi Wesley D. Tennyson Joel C. Keay Ernest S. Sanchez Matthew B. Johnson Daniel E. Resasco

The role of water in carbon feed on the surface-guided growth of horizontally aligned single-walled carbon nanotubes (HA-SWCNTs) was investigated. It is shown that the amount of water can be optimized to favor HA-SWCNT growth, which is proposed to be due to selective etching of carbon deposits at carbon–metal interface. Without water, nanotube–nanotube interaction and carbon accumulation at the...

Journal: :iranian journal of science and technology (sciences) 2011
m. saeidi

the growth rate of carbon nanotubes in chemical vapor deposition is simulated by using a theoretical analysis of the phonon vibration of the system. simulations demonstrate that the growth rate of carbon nanotubes with larger diameters is smaller because of higher damping factors and carbon nanotube inertia. an optimum temperature for the growth rate is calculated for a carbon nanotube on fe ca...

Journal: :Nano letters 2008
Tristan DeBorde J Caleb Joiner Matthew R Leyden Ethan D Minot

We show that the number of concentric graphene cylinders forming a carbon nanotube can be found by squeezing the tube between an atomic force microscope tip and a silicon substrate. The compressed height of a single-walled nanotube (double-walled nanotube) is approximately two (four) times the interlayer spacing of graphite. Measured compression forces are consistent with the predicted bending ...

Journal: :Nanotechnology 2009
C Lamprecht I Liashkovich V Neves J Danzberger E Heister M Rangl H M Coley J McFadden E Flahaut H J Gruber P Hinterdorfer F Kienberger A Ebner

Multifunctional carbon nanotubes are promising for biomedical applications as their nano-size, together with their physical stability, gives access into the cell and various cellular compartments including the nucleus. However, the direct and label-free detection of carbon nanotube uptake into cells is a challenging task. The atomic force microscope (AFM) is capable of resolving details of cell...

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-...

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