The carbon based coils with the nanometer scale have the 3 dimension helix geometry. We synthesized the carbon nano-coils by the use of chemical vapor deposition technique with iron and tin as the catalysts. The fabricated coils have the external diameter of ranging few hundred nm to few thousand nm. The Scanning Electro-Microscope (SEM) and Tunneling Electro-Microscope has shown detail images ...

There has been great interest in the use of carbon nano-materials (CNMs) in agriculture. However, the existing literature reveals mixed effects from CNM exposure on plants, ranging from enhanced crop yield to acute cytotoxicity and genetic alteration. These seemingly inconsistent research-outcomes, taken with the current technological limitations for in situ CNM detection, present significant h...

We have performed mechanical and electrical characterization of individual as-grown, vertically oriented carbon nanofibers (CNFs) using in situ techniques, where such high-aspect-ratio, nanoscale structures are of interest for three-dimensional (3D) electronics, in particular 3D nano-electro-mechanical-systems (NEMS). Nanoindentation and uniaxial compression tests conducted in an in situ nanome...

Carbon nanotubes are tiny cage like structures with great potentials in biomedical engineering and sciences. However, their great emergence in bioscience applications is not risk free. In present report several known or possible risks and limitations of carbon nanotube material in biosciences and bioengineering are documented. Major breakthroughs of carbon nanotubes such as MRI buckyballs, comp...

Carbon nanotubes (CNTs) are one of the most significant achievements of nano-technology because of its important applications in the design of electronic nano-devices. The study of their properties is therefore important. In this study, Density Functional Theory (DFT) was used to investigate the adsorption of gas molecules on the surface of carbon nanotubes. Theoretical studies have found that ...

Low-power, compact, and highperformance NP dynamic CMOS circuits are presented in this paper assuming a 16 nm carbon nano tube transistor technology. The performances of two-stage pipeline 32-bit carry lookahead adders are evaluated based on HSPICE simulation with the following four different implementations: silicon MOSFET (Si-MOSFET) domino logic, Si-MOSFET NP dynamic CMOS, carbon nanotube MO...

Nano-carbon materials are promising canidates for applications in high performance devices, including highly sensitive biosensors. We have developed a self-alignment process for nano-carbon field effect transistors (FETs), using a carbon nanowall (CNW)—a nano-carbon materials—to fabricate CNW-FETs. We measured the pH dependence of the device properties. The binding molecules are known to be key...

Background: The presence of heavy metals in the environment especially in water supplies have caused many concerns because of their toxicity and non-degradability. Hexavalent Chromium (Cr) is one of the most toxic metals which is used in many industries, so it is essential to remove it from industrial wastewater. In this study, we made a comparison between different adsorption isotherms in the ...