carbon nanotube – Page 7 – TechConnect Briefs

Carbon nanotube/fused silica composite with gradient structure and carbon fiber/ fused silica back reflection layers for microwave absorbing application

Zhu Y., Pan Y.B., Guo J.K., Chinese Academy of Sciences, CN

Many investigations have been made to the carbon nanotube (CNT)/pure silica (SiO2) composites for their attractive properties. Our primary work demonstrates the decrease of reflection at interface and the improvement of microwave absorbing efficiency in [...]

The role of Stone-Wales defects in the mechanical behavior of a zig-zag SWNT

Talukdar K., Mitra A.K., National Institute Of Technology, IN

A (5,0) SWNT with aspect ratio of 10.87 is simulated considering two different potentials, viz. Brenner’s Bond Order potential and Tight Binding potential. At first the Young’s modulus, failure stress and the maximum strain value [...]

Fabrication Processes and Multi-functional Properties of Carbon Nanotube/Inorganic Nanocomposites

Hong S.H., Korea Advanced Institute of Science and Technology, KR

Molecular level mixing process was developed for the fabrication of homogeneous carbon nanotube(CNT)/Inorganic nanocomposites instead of the conventional powder mixing process in order to solve the agglomeration of CNTs and weak interfacial bonding between CNTs [...]

Electron Hopping Process in SWCNT-Mediated Redox Reaction: An Evidence Observed by DFT Theory

Nongnual T., Choomwattana S., Nokbin S., Khongpracha P., Limtrakul J., Laboratory for Computational and Applied Chemistry, Physical Chemistry Division, TH

The electron hopping in SWCNT-mediated redox reaction of anthraquinonnyl (AQH2-) and 4-arylhydroxyl amine (4AHA-) groups is systematically studied by DFT for the first time. The spin-unrestricted DFT calculations were performed with generalized gradient approximation (GGA) [...]

Chirality Separation of single walled carbon nanotube using microfluidic

Han C-S, Shin D-H, Kim J-E, Shim H-C, Kang J-M, Baek S-H, Korea Insitute of Machinery & Materials, KR

Carbon nanotubes were separated by dielectrophoresis in a micro-fluidics chip, which is easy to scale-up the process. We used the H-filter with micro size channels, which have two inlets and two outlets. In this experiment, [...]

In Vivo Real Time Raman Spectroscopy Detection of Carbon Nanotube Kinetics in Lymph, Blood and Tissues

Biris A.S., Galanzha E.I., Li Z., Mahmood M., Xu Y., Dervishi E., Zharov V.P., University of Arkansas at Little Rock, US

The development of novel therapies using unique nanostructures for molecular targeting has become a major area of biological research. Here, we present the first report of the use of carbon nanotubes (CNTs) as high contrast [...]

An Evaluation Criteria of Lower Respiratory Tract Infection Drug Resistant Patients in Need of Alveolar Fibroblasts: Match between Carbon Nanotube Bound Fibroblast Defense and Patient Drug Resistance: NIDHI Criteria

Sharma R., Goel N., Kwon S., Florida State University, US

We report first time a criterion of evaluating the need of choosing alveolar fibroblasts immune to lower respiratory tract infection (LRTI) in LRTI patients who display fatal drug resistance and specific pattern of bacterial infection. [...]

Nanotoxicity Assessment toward the Applications of Carbon Nanotubes as a Small Biomolecule Carrier in Drug Delivery Systems

Sharma A., Sharma R., Kwon S., Baktur R., Sharma A., Sharma R., Utah State University, US

Carbon Nanotube (CNT) materials has superior properties in electric current carrying capacity, thermal conductivity, and thermal stability. Due to their structure with high aspect ratio, they have structural unusual toxicity and complicate safety issue in [...]

PMMA/SWCNTs Composites for Prostate Brachytherapy MRI Contrast Agent Markers

Martirosyan K.S., Stafford R.J., Elliott A.M., Frank S.J., University of Houston, US

Prostate brachytherapy (PB) is an alternative to traditional external beam radiation or surgery for men who have prostate cancer. PB used implanted radioactive titanium seeds and has increased in popularity over recent years due to [...]

High Resolution Surface Imaging Using a Carbon Nanotube Array with Pointed Height Distribution

Roy Mahapatra D., Anand S.V., Sinha N., Melnik R.V.N., Massachusetts Institute of Technology, US

In this paper, we discuss a new methodology to obtain high resolution electron micrographs of different materials using field emission from a pointed array of carbon nanotubes (CNTs) and a technique to map the surface [...]