carbon nanotube – Page 8 – TechConnect Briefs

Formation of Ni/NiO core/shell nanostructures and their attachment on carbon nanotubes

Chopra N., Claypoole L., Bachas L.G., University of Alabama, US

We report a facile wet synthesis method coupled with microwave irradiation to successfully control the morphology of Ni/NiO core/shell nanoparticles. Furthermore, we report for the first time, microwave-based synthesis of hollow NiO nanostructures from Ni [...]

Self Aligned Multi-Layer Nano-Gap Electrodes for Fluidic and Magnetic Assembly of Carbon Nanotubes

Shim J.S., Yun Y.H., Schulz M.J., Ahn C.H., University of Cincinnati, US

A self aligned nano-scale gap was fabricated using conventional optical lithography, and applied for the assembly of a carbon nanotube (CNT). The new technique enables the formation of a sub-micron gap between self-aligned electrodes with [...]

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) [...]

Multi-Functional Carbon Nanotube Based Filtration Material

Cummings A., Seldon Technologies, Inc., US

The very small diameters of carbon nanotubes (CNTs) present relatively low resistance to fluid flow. This, combined with their high surface area, means that highly-efficient, bio-contaminant removals are possible with a thin filtration media possessing [...]

Water Purification Using Carbon Nanotubes

Cummings A., Seldon Technologies, Inc., US

As we learn more about the hundreds of contaminants common in water, the decline of our water infrastructure, and the potentially harmful effects of chemical treatments, it is not surprising that consumers are turning to [...]

Field Emission Properties of Carbon Nanotube Arrays with Defects and Impurities

Roy Mahapatra D., Sinha N., Melnik R., Yeow J.T.W., University of Waterloo, CA

Field emission from carbon nanotubes (CNTs) in the form of arrays or thin films give rise to several strongly correlated process of electromechanical interaction and degradation. Such processes are mainly due to (1) electron-phonon interaction [...]

Magnetically associated carbon nanotubes with mammalian cells: flow cytometry characterization and applications

Cai D., Blair D., Dufort F.J., Gumina M.R., Huang Z., Hong G., Kempa K., Ren Z.F., Chiles T.C., Boston College, US

Magnetic CNT can be driven into cells because it has an embedded Ni nanoparticle in its tip. We show herein that CNT-cell complexes are formed in the presence of a magnetic field. The complexes were [...]

Nanolithographic Patterning of Catalysts for Synthesis of Carbon Nanotubes

Gargate R.V., Banerjee D., Texas A&M University, US

Carbon nanotubes (CNT) were synthesized on specially custom designed MEMS chips under ambient conditions without requiring conventional Chemical vapor deposition(CVD) apparatus or process gases. In this approach, a layer of fullerene (C60) of 200 nm [...]

Functionalization of multiwalled carbon nanotubes with _-lactalbumin and _-lactoglobulin

Zhou J., Yang Q., Pan X., Gunasekaran S., University of Wisconsin-Madison, US

The immobilization of proteins on carbon nanotubes is attracting much attention because the resultant hybrid nanomaterials are potentially useful as biomolecular nanosensors [1]. -lactalbumin and -lactoglobulin are the major proteins in whey, the by-products of [...]

Mechanical and Electrical Properties of CNT/Inorganic Nanocomposites by Molecular Level Mixing Process

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

One of the emerging applications of CNTs is the reinforcement of composite materials to overcome the performance limits of conventional materials. However, because of the difficulties in distributing CNTs homogeneously in metal or ceramic matrix [...]