US – Page 285 – TechConnect Briefs

SWNTs inhibit normal physiological function of calcium ion channels through yttrium release

Jakubek L.M., Raingo J., Lipscombe D., Hurt R.H., Brown University, US

The calcium ion channel is a voltage gated channel that enables calcium to enter electrically active cells. Proper function of these channels is essential for gene expression, neuronal excitability, muscle contraction and the release of [...]

Osteogenic induction on single-walled carbon nanotube scaffolds

Zanello L.P., Sharma P., Corzano R., Hauschka P., University of California Riverside, US

Production of bone materials is the result of secretory activities by osteoblasts, the bone-forming cells. In the fractured and wounded bone, successful repair and/or regeneration depends on the capacity of osteoblast precursors to proliferate and [...]

Carbon Nanotube Interfaces for Single Molecular Level Bio Sensing

Choi W.B., Vedala H., Roy S., Kim T-H., Florida International University, US

Single molecule detection, aimed both at fundamental investigation and applications, has recently been attracting a lot of attentions. The present set of studies is focused on the design, fabrication and optimization of novel carbon nanotube(CNT) [...]

High Current Cold Electron Source Based on Carbon Nanotube Field Emitters and Electron Multiplier Microchannel Plate

Raghunandan S., Choi W., Florida International University, US

Vacuum microelectronics has been studied for decades to develop unique devices such as rf-generators, high efficiency flat panel displays, x-ray sources and so on. In recent years field emitters based on carbon nanotubes (CNTs) and [...]

Arkema Inc. Graphistrength ™ Multi-Wall Carbon Nanotubes

McAndrew T.P., Laurent P., Havel M., Roger C., Arkema Inc., US

Arkema Inc. produces multi-wall carbon nanotubes (CNTs), and masterbatches from CNTs in various resins. Electrical and mechanical performance of CNT-containing composite systems is presented.

A High-Flux, Flexible Membrane with Parylene-encapsulated Carbon Nanotubes

Park H.G., In J., Kim S., Fornasiero F., Holt J.K., Grigoropoulos C.P., Noy A., Bakajin O., Lawrence Livermore Natioanal Laboratory, US

We present fabrication and characterization of a membrane based on carbon nanotubes (CNT) and parylene. Carbon nanotubes have shown orders of magnitude enhancement in gas and water permeability compared to estimates generated by conventional theories [...]

Deagglomeration and Dispersion of Carbon Nanotubes Using MicrofluidizerTM High Shear Fluid Processors

Panagiotou T., Bernard J.M., Mesite S.V., Microfluidics, US

Microfluidizer processors are used for reduction and/or deagglomeration of particles in liquid media. These continuous processors force multiphase fluids through microchannels at velocities of up to 500 m/s, exposing them to high shear and impact [...]

Improve Contacts in Carbon Nanotube Networks by In situ Polymerization of Thin Skin of Self-Doped Conducting Polymer

Ma Y., Cheung W., Wei D., Bogozi A., Chiu P.L., He H., Rutgers, US

Herein, we report the conductivity of SWNT networks can be dramatically improved by in-situ polymerization of a thin layer of self-doped conducting polymer around and along the carbon nanotubes. The formed conducting polymer improves the [...]

Modeling and simulation of adhesion between carbon nanotubes and surfaces

Paudel N.R., Ohashi T., Dai L., Buldum A., The University of Akron, US

There have been also many experimental studies which were performed to compare the adhesion properties of carbon nanotubes with that of a gecko’s foot on smooth surfaces. Yurdumakan et al. measured the adhesive force of [...]

The Influence of DNA Wrapping on SWNT Optical Absorption in Perpendicular Polarization

Snyder S.E., Rotkin S.V., Lehigh University, US

Single-walled carbon nanotubes (SWNTs) hold great promise for the next generation of electronic devices due to their small, biologically compatible size, exceptional electronic properties, and the range of bandgaps accessible with variations in diameter and [...]