Carbon nanotubes potential

Ryman-Rasmussen, J.P. et al. (2009) Inhaled multiwalled carbon nanotubes potentiate airway fibrosis in murine allergic asthma. American Journal of Respiratory Cell and Molecular Biology,... 

Reilly RM (2007) Carbon nanotubes potential benefits and risks of nanotechnology in nuclear medicine. J Nucl Med 48 1039-1042. 

Carbon Nanotubes Potential in Water Splitting Catalysis. 136... 

Ryman-Rasmussen, J.P., Tewksbury, E.W., Moss, O.R., Cesta, M.F., Wong, B.A., and Bonner, J.C. (2008) Inhaled multiwalled carbon nanotubes potentiate airway fibrosis in a murine model of allergic asthma. Am. J. Respir. Cell Mol. Biol., 40, 349-358. 

There are many applications for diamonds and related materials, e.g., diamondlike carbon films, and there are potential applications for Fullerenes and carbon nanotubes that have not yet been realised. However, the great majority of engineering carbons, including most of those described in this book, have graphitic microstructures or disordered graphitic microstructures. Also, most engineering carbon materials are derived firom organic precursors by heat-treatment in inert atmospheres (carbonisation). A selection of technically-... 

The structure-property relations of fullerenes, fullerene-derived solids, and carbon nanotubes are reviewed in the context of advanced technologies for carbon-hased materials. The synthesis, structure and electronic properties of fullerene solids are then considered, and modifications to their structure and properties through doping with various charge transfer agents are reviewed. Brief comments are included on potential applications of this unique family of new materials. 

Harris has this to say on the breadth of appeal of nanotubes Carbon nanotubes have captured the imagination of physicists, chemists and materials scientists alike. Physicists have been attracted to their extraordinary electronic properties, chemists to their potential as nanotest-tubes and materials scientists to their amazing stiffness, strength and resilience . 

Song et al. [16] reported results relative to a four-point resistivity measurement on a large bundle of carbon nanotubes (60 um diameter and 350 tm in length between the two potential contacts). They explained their resistivity, magnetoresistance, and Hall effect results in terms of a conductor that could be modeled as a semimetal. Figures 4 (a) and (b) show the magnetic field dependence they observed on the high- and low-temperature MR, respectively. 

Hollow carbon nanotubes (CNTs) can be used to generate nearly onedimensional nanostrutures by filling the inner cavity with selected materials. Capillarity forces can be used to introduce liquids into the nanometric systems. Here, we describe experimental studies of capillarity filling in CNTs using metal salts and oxides. The filling process involves, first a CNT-opening steps by oxidation secondly the tubes are immersed into different molten substance. The capillarity-introduced materials are subsequently transformed into metals or oxides by a thermal treatment. In particular, we have observed a size dependence of capillarity forces in CNTs. The described experiments show the present capacities and potentialities of filled CNTs for fabrication of novel nanostructured materials. 

Figure 17.10 Electrocatalytic current (per geometric area) versus potential for glucose oxidation by glucose oxidase in an Os-containing redox polymer supported on carbon nanotubes grown for various periods (times indicated) on carbon paper. Reproduced by permission of ECS—The Electrochemical Society, from Barton et al., 2007.

Only a few in vivo dermal toxicity studies have been reported so far. Huczko and Lange [50] evaluated the potential of raw CNTs to induce skin irritation by conducting two routine dermatological tests (patch test on 40 volunteers with allergy susceptibilities and Draize rabbit eye test on four albino rabbits). Koyama etal. [51] showed the biological responses to four different types of carbon nanotubes (SWNTs, two types of MWNTs with different diameters, and cup-stacked carbon nanotubes) after their subcutaneous implantation in mice. Both tests [50, 51] showed no or poor irritation effects. However, the in vitro studies in epidermal cell lines exposed to CNTs, and also a more recent report on the toxic outcomes of topical exposure of mice to SWNTs [46], have raised concerns over these assessments. Clearly, this is an area requiring further scientific evaluation. 

Park, E.J. et al. (2009) Pro-inflammatory and potential allergic responses resulting from B cell activation in mice treated with multi-walled carbon nanotubes by intratracheal instillation. Toxicology,... 

Erdely, A. et al. (2009) Cross-talk between lung and systemic circulation during carbon nanotube respiratory exposure. Potential biomarkers. Nano Letters, 9 (1), 36-43. 

De Nicola, M. et al. (2008) Carbon nanotubes on Jurkat cells effects on cell viability and plasma membrane potential. Journal of Physics Condensed Matter,... 

Various forms of carbon material such as graphite, diamond, carbon nanotubes (fibers), and amorphous carbon-containing, diamond-like carbon have been compared and analyzed for their potential application in the fields of flat panel displays and lighting elements.48... 

Recently, direct electron transfer to microperoxidases adsorbed on carbon nanotube-modified platinum electrodes has been observed [24], The redox potential for this direct electron transfer is-0.4 V vs SCE, the same as that for the microper-... 

M. Musameh, J. Wang, A. Merkoci, and Y. Lin, Low-potential stable NADH detection at carbon-nanotube-modified glassy carbon electrode. Electrochem. Common. 4, 743-746 (2002). 

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