Papers – Page 277 – TechConnect Briefs

Morphological change from nano-cube to nano-sphere by addition of Ni to W in RF thermal plasma synthesis

Kim Y.M., Na H., Lee B.J., Lee W., Lee B.J., Lee W., Hwang N.M., Choi H., Korea Institute of Industrial Technology, KR

Pure W and W-Ni nano-particles were effectively synthesized by feeding thermo-physically favorable oxide feedstock micro-powder into argon-hydrogen thermal plasma. During the process, feedstock particle underwent a vaporization, reduction, and condensation pathway. Significant amount of nano-cube [...]

Carbon Nanotube Dispersion : Science or Art?

Nguendia Zeuna J., Zhong W., Claverie J., Quebec Center for Functional Materials, NanoQAM, CA

We have developed a series of strategies to unravel the mechanism of adsorption of surfactants and polymeric dispersants onto SWNT and MWNT. Using these guidelines, we have prepared a novel series of polymeric surfactants that [...]

Correlating electrical and structural properties in surface layer of carbon nanotube polymer composite

Pavlenko E., Tishkova V., Puech P., Bacsa W.S., CNRS and University of Toulouse, FR

We have recently shown that annealing of agglomerated carbon nanotubes on thermoplast polymers form surface composite films (70 micrometers) (1). This has been explained by preferential carbon nanotubes absorption of infrared radiation leading to local [...]

Fabrication of polymer nanocomposites based on CNTs in PDMS matrix

Imbaby M., Gottschalk K., Ulm University, DE

This research presents a new approach to fabricate polymer/carbon nanotubes (CNT) nanocomposites. Multiwall carbon nanotubes with 6-9 nm diameter and 1.5 um length is used. Polydimethysolixane (PDMS), Acetone, and Polyethylene oxide (PEO) are used as [...]

An explosive impact technique to nanocrystallize and harden surface of metal materials

Tong S.J., Tong Z., Shi Z.M., Tong S.J., Tong Z., Inner Mongoli University of Technology, CN

An explosive impact surface nanorisation technique (EISNT) was developed to prepare nanostructured surface layers on medium carbon steel (MCS) and pure Copper (PC) plates. The plastic deformation involved the entire plate depth of 4-6 mm, [...]

The Rheology and Processing of Carbon Nanotubes for Polymer Composite Applications

Ma A.W.K., University of Connecticut, US

Carbon nanotubes (CNTs) have a diameter on the nanometer scale and a length on the micrometer or even centimeter scale. The high-aspect-ratio (length to diameter ratio) of CNTs offers a unique competitive advantage for using [...]

Composite microelectrodes from PEDOT and carbon nanotubes enable advanced neuronal recording, stimulation and sensing

Gerwig R., Cesare P., Kraushaar U., Reinartz S., Giugliano M., Kilias A., Ruther P., Stett A., Stelzle M., Natural and Medical Sciences Institute, NMI, DE

The aim of this work was to design an advanced microelectrode material for neurotechnology. In order to improve signal-to-noise ratio, stimulation and sensing properties as well as cell viability, microelectrodes were modified with poly(3,4-ethylenedioxythiophene) (PEDOT) [...]

MWCNTs and SWCNTs based Nanocomposites for Cartilage and Bone Tissue Regeneration

Zhang L.G., Holmes B., The George Washington University, US

Cartilage and bone defects, which are caused by a variety of reasons such as traumatic injuries, osteoarthritis, osteoporosis or bone cancers, represent common and severe clinical problems. Developments in nanotechnology and tissue engineering have provided [...]

Chemical Synthesis of Graphene Nanoribbons

Hernández-Arriaga D., González-González F.J., Segura-Cárdenas E., Reyes-Reyes M., López-Sandoval R., Universidad Autonoma de San Luis Potosi, MX

Carbon Nanotubes (CNTs) have been the reason of studies since they were discovered in 1991 and now the new innovator material is Graphene. Geim and Novoselov achieved a single sheet of Graphene. The importance of [...]

Antibacterial effect of Silver Carbon Nanotubes against Multi-drug resistant Pseudomonas aeruginosa

Dosunmu E., Pillai S., Vig K., Singh S.R., Dennis V.A., Coats M., Alabama State University, US

Silver carbon nanotubes AgCNT inhibited the growth of P. aeruginosa at the lowest concentration of 60 µg/ml for at least 12 hr. Further studies of structural and morphological changes would further elucidate the mechanism of [...]