carbon nanotubes – Page 5 – TechConnect Briefs

Novel Aluminum-CNT composites for structural applications

Esawi A.M.K., Salama E., The American University in Cairo, EG

The latest enhancements in the mechanical behaviour of Al-CNT composites achieved by the research group are presented : an increase in tensile strength, indentation hardness and Young’s modulus of 69%, 72% and 23%, respectively. The [...]

Using Magnetic Impact Coating Technique to Prepare Carbon Nanotube-Reinforced Polymer Nanocomposites

Narh K.A., New Jersey Institute of Technology, US

The combination of high aspect ratio, small size, very low density, and more importantly, excellent physical properties, such as extremely high mechanical strength and stiffness, high electrical and thermal conductivity, make carbon nanotubes (CNTs) perfect [...]

Effect of Dispersion Conditions on the Thermo-Mechanical Properties of Functionalized Carbon Nanotube-Reinforced Vinyl Ester

Sabet S.M., Mahfuz H., Hashemi J., Florida Atlantic University, US

To date, controlling the microstructure of carbon nanotube (CNT)-polymer composites remains a challenge due to high tendency of CNTs to aggregate. Proper dispersion of CNTs in the matrix has to be guaranteed to employ CNTs [...]

Wafer-scale integration of in-situ grown carbon nanotube membranes: a platform to study electrical properties

Le Poche H., Guerin H., Fournier A., Ramos R., Fayolle M., Delaunay M., Dijon J., Ionescu A.M., CEA-Liten, FR

Dense arrays of horizontal carbon nanotubes (CNTs) connected between two metallic electrodes and either supported on a silicon dioxide layer or suspended above a third gate electrode constitute a basic building block to achieve CNT-based [...]

Harnessing the resistive-elastic behavior of novel CNT-graphene hybrid foams for practical sensing applications

Wolmarans F., Van H.H., Li S.J., Liu T., Liu T., Zhang M., Florida State University, US

Carbon nanotube (CNT) foam and aerogels hold promise in the area of strain sensors because of their resistive-elastic behavior under compressive strain. To date one of the largest obstacles in the area of CNT foam [...]

Ultrafast Integrated Humidity and Temperature Sensor Based on Carbon Nanotubes, and a Sensor Controller System

Kayastha V., Gibbons S., Giedd R., Brewer Science, Inc, US

A flexible, resistive-type, integrated humidity and temperature sensor that is made of carbon nanotubes (CNTs) will be presented. The sensor resolution is ~1% for relative humidity and <0.5°C for temperature. The sensor response and settling [...]

Analysis of Factors Associated with the Releasability of Carbon Nanotubes (CNTs) from Materials Containing Nanocomposites

Kovochich M., Avanasi R., Madl A.K., ChemRisk, US

Carbon nanotubes (CNTs)in composites are currently being used in applications ranging from basic consumer goods to critical national defense technologies; however, concerns have been raised regarding the potential for exposure and health risk CNTs due [...]

Entry of Short Multi-Wall Carbon Nanotubes into Dorsal Root Ganglion (DRG) Neurons Induces Cell Death

Lai J.C.K., Gao W., Bhushan A., Bearden S.E., McDougall L., Leung S.W., Idaho State University College of Pharmacy, US

Carbon nanotubes (CNTs) have found their way into diverse industrial and biomedical applications because of their unique physico-chemical properties. However, the human health impact of exposure to CNTs is unknown. Our recent and ongoing studies [...]

Oxidatively Induced Damage to DNA: Potential Roles of Single- and Multi-Wall Carbon Nanotubes at the Molecular Level

Nelson B.C., National Institute of Standards and Technology, US

Carbon nanotubes (CNTs) are remarkable materials in terms of their enhanced thermal and electrical conductivities, tensile strengths and mechanical properties. Because of these unique properties, the commercial development and application of CNTs in electronics, advanced [...]

Nanosystem for targeting Treg in vivo

Bottini M., Bottini N., Sacchetti C., Rapini N., Rosato N., Magrini A., Bottini M., Bottini N., Sanford Burnham Medical Research Institute, US

Due to their ability to suppress the activity of autoreactive cells, “natural” CD4+ CD25high FoxP3+ T cells (Treg) are important drug targets for autoimmune diseases and malignancies. Immunological studies are revealing a growing subset of [...]