نتایج جستجو برای: carbon nanotube sensor

تعداد نتایج: 467532  

Journal: :Physical review letters 2004
Asa H Barber Sidney R Cohen H Daniel Wagner

Individual carbon nanotubes were immersed and removed from various organic liquids using atomic force microscopy. The carbon nanotube-liquid interactions could be monitored in situ, and accurate measurements of the contact angle between liquids and the nanotube surface were made. These wetting data were used to produce Owens and Wendt plots giving the dispersive and polar components of the nano...

Darvish Ganji, Masoud , Rasoolidanesh, Melahatsadat,

Background: The separation of drug enantiomers in the pharmaceutical industry is of great importance since most organic compounds are chiral. The main purpose of this study was to calculate the binding energy of ibuprofen isomers interacting with the CNT, according to various adsorption configurations. Moreover, we have evaluated the performance of (16.4) chiral carbon nanotube for separation o...

2003
Balaji Panchapakesan Kousik Sivakumar

Manipulation and control of matter at the nanoand atomic level are crucial for the success of nano-scale sensors and actuators. The ability to control and synthesize multilayer composite structures using carbon nanotubes that will enable to build electronic devices within a nanotube is still in its infancy. In this paper, we present results on selective electrochemical deposition of metals and ...

Journal: :Journal of the American Chemical Society 2002
Fiona Frehill Johannes G Vos Sakina Benrezzak Antal A Koós Zoltan Kónya Manuel G Rüther Werner J Blau Antonio Fonseca Janos B Nagy Laszlo P Biró Andrew I Minett Marc In Het Panhuis

Intermolecular carbon nanotube junctions were formed through amide linkage of amino functionalized multiwall carbon nanotubes and [Ru (dcbpy)(bpy)2](PF6)2, an inorganic metal complex. Nanotube interconnects were visualized using atomic force microscopy. Absorption and emission spectroscopy showed significant changes between starting products and the resulting ruthenium nanotube complex, indicat...

2005
Jan M. Smits

Single walled carbon nanotubes represent the future of structural aerospace vehicle systems due to their unparalleled strength characteristics and demonstrated multifunctionality. This multifunctionality rises from the CNT’s unique capabilities for both metallic and semiconducting electron transport, electron spin polarizability, and band gap modulation under strain. By incorporating the use of...

2016
Benedikt W Stolz Daniel D Tune Benjamin S Flavel

Recent results in the field of carbon nanotube-silicon solar cells have suggested that the best performance is obtained when the nanotube film provides good coverage of the silicon surface and when the nanotubes in the film are aligned parallel to the surface. The recently developed process of dry shear aligning - in which shear force is applied to the surface of carbon nanotube thin films in t...

2010
Ching-Liang Dai Yen-Chi Chen Chyan-Chyi Wu Chin-Fu Kuo

The study presents a micro carbon monoxide (CO) sensor integrated with a readout circuit-on-a-chip manufactured by the commercial 0.35 μm complementary metal oxide semiconductor (CMOS) process and a post-process. The sensing film of the sensor is a composite cobalt oxide nanosheet and carbon nanotube (CoOOH/CNT) film that is prepared by a precipitation-oxidation method. The structure of the CO ...

Journal: :The Journal of chemical physics 2015
T Ketolainen V Havu M J Puska

The conductivity of carbon nanotube thin films is mainly determined by carbon nanotube junctions, the resistance of which can be reduced by several different methods. We investigate electronic transport through carbon nanotube junctions in a four-terminal configuration, where two metallic single-wall carbon nanotubes are linked by a group 6 transition metal atom. The transport calculations are ...

2010
M. Chen S. S. Datta S. M Khamis J. E. Fischer A. T. Johnson

We demonstrate a versatile class of nanoscale chemical sensors based on single stranded RNAs (ssRNAs) as the chemical recognition sites and single-walled carbon nanotube field effect transistors (SWNT-FETs) as the electronic readout components. The sensor responses differ in sign and magnitude depending on both the type of gaseous analyte and the sequence of ssRNA being used. Such rapid respons...

2018
Diana S. Raie Eisha Mhatre Doaa S. El-Desouki Ahmed Labena Gamal El-Ghannam Laila A. Farahat Tareq Youssef Wolfgang Fritzsche Ákos T. Kovács

The present work was targeted to design a surface against cell seeding and adhering of bacteria, Bacillus subtilis. A multi-walled carbon nanotube/titanium dioxide nano-power was produced via simple mixing of carbon nanotube and titanium dioxide nanoparticles during the sol-gel process followed by heat treatment. Successfully, quercetin was immobilized on the nanocomposite via physical adsorpti...

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