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Nanowires in Medical News

American Chemical Society's Weekly PressPac -- June 18, 2008

...with water-repelling carbon nanotubes on one end and water-attracting metal nanowires on the other end. In laboratory tests, they showed that the nanowires could assemble themselves into larger, more complex structures when placed ...

Go Speed Racer! Revving up the world's fastest nanomotors

...he new study, Joseph Wang and colleagues point out that existing nanomotors, including so-called catalytic nanomotors, are made with gold and platinum nanowires and use hydrogen peroxide fuel for self-propulsion. But these motors are too slow and inefficient for practical use, with top speeds of about 10 micro...

Major EU Funded Nanotube Research Group, DESYGN-IT, Publish in AZoJono - The Open Access Online Nanotech Journal

...n with DESYGN-IT*, an EU funded collaborative research project that has been investigating the design, synthesis, growth and application of nanotubes, nanowires and nanotube arrays for industrial applications. URL for special edition [ http://www.azonano.com/nanotechnology%20journal.asp ] DESYGN-IT, is a ...

Nanowire coating for bone implants, stents

...findings in an upcoming issue of the journal Chemistry of Materials. The researchers used an alkali and heat to create titanium oxide-based ceramic nanowires that coat the surface of a titanium medical device. "We can control the length, the height, the pore openings and the pore volumes within the nano...

Bubbles may Pave Way for Producing Nanoscale Electronic Components

... to the problem of separating and aligning tangled nanowires and nanotubes, and pave a new way of producing na...low bubbles of an epoxy polymer containing silicon nanowires and caught the resulting film on a surface. ...tical and electron microscopes, and found that the nanowires and nanotubes had become neatly lined up verticall...

Discovery of World’s smallest laser

...try, of UC Berkeley lab to image single zinc oxide nanowires in the act of producing ultraviolet laser radiatio...ng, collimated beam is needed, the light from many nanowires could be channeled into an optical waveguide. If a...iquid-solid epitaxy, that grows vertical arrays of nanowires on gold-coated sapphire. In order to image sin...
Nanowires in Biological News

Encoded metallic nanowires reveal bioweapons

When dangerous infectious diseases or biological weapons are suspected, fast help is required. The first step is a reliable, sensitive, and unambiguous, yet also fast and simple, identification of the pathogen; preferably, this test should be carried out on the spot, not in a laboratory. Portable m...

Shape matters in the case of cobalt nanoparticles

...croscopes of choice. After a few minutes exposure to the illuminating beam of a transmission electron microscope, the nanocubes melt together, forming nanowires that are no longer separable as individual nanoparticles. The effect, not observed with the spheres, is surprising because the cubes average 50 nm acr...

A quicker, cheaper SARS virus detector -- one easily customizable for other targets

...er versions of the natural substances that are designed to bind with a specific protein and only that protein. Second, it uses indium oxide (In2O3) nanowires instead of silicon and other materials previously tried. Metal oxides, according to a new study published in ACSNano , do not, unlike silicon, develo...

6 young ASU faculty earn NSF Career awards

...ormance automobiles, golf clubs and tennis racquets. Sodano's method uses nanowires to form an interface that bonds and blends fibers such as carbon, glass or polymers with other materials. The effect of the nanowires gives the composite materials more strength, including better tensile stren...

American Chemical Society's weekly PressPac -- March 11, 2009

...k are reporting production of the longest platinum nanowires ever made an advance that they say could speed de...M. Li and colleagues point out that short platinum nanowires already have been used in sub-microscopic sensors ...s known as electrospinning, the team made platinum nanowires long enough to construct that web. "Our ultimate p...

Simplicity is crucial to design optimization at nanoscale

...terials." More and more frequently, natural protein materials are being used as inspiration for the design of synthetic materials that are based on nanowires and carbon nanotubes, which can be made to be much stronger than biological materials. The work of Buehler and Ackbarow, a graduate student at the Max...

Sensitive nanowire disease detectors made by Yale scientists

...vated cells. In earlier studies, these researchers demonstrated that the nanowires could detect generalized activation of this small number of T cells. The new report expands that work and shows the nanowires can identify activation from a single specific antigen even when there is s...

Europe rallies behind nanotechnology to wean world from fossil fuels

...was a presentation by Angela Belcher, who played a major role in pioneering nanowires made from viruses at the Massachusetts Institute of Technology (MIT) in the...key to the high capacity in small space lies in the microscopic size of the nanowires constructed by the viruses this means that a greater surface area of charg...

Caltech scientists create DNA tubes with programmable sizes for nanoscale manufacturing

... rigid. The nanotubes might eventually serve as templates for manufacturing nanowires with controlled diameters; the diameters of electron-conducting nanowires would help determine the electronic properties of the devices they are used...

Nanoparticles assemble by millions to encase oil drops

...ould result in spheres that can both capture and break down oily chemicals. For example, they hope to attach catalysts to the water-hating ends of the nanowires that will cause compounds like trichloroethene, or TCE, to break into nontoxic constituents. Another option would be to attach drugs whose release can...
Nanowires in Biological Technology

Self-assembled nanowires could make chips smaller and faster

CHAMPAIGN, Ill. Researchers at the University of Illinois have found a new way to make transistors smaller and faster. The technique uses self-assembled, self-aligned, and defect-free nanowire channels made of gallium arsenide. In a paper to appear in the IEEE (Institute of Electrical and Elect...

Researchers peer into nanowires to measure dopant properties

Semiconductor nanowires tiny wires with a diameter as small as a few billionths of a meter hold promise for devices of the future, both in technology like light-emitting diodes and in new versions of transistors and circuits for next generation of electronics. But in order to utilize the novel p...

Carbon nanotubes outperform copper nanowires as interconnects

Troy, N.Y. Researchers at Rensselaer Polytechnic Institute have created a road map that brings academia and the semiconductor industry one step closer to realizing carbon nanotube interconnects, and alleviating the current bottleneck of information flow that is limiting the potential of computer ...

'High Q' NIST nanowires may be practical oscillators

Nanowires grown at the National Institute of Standards and Technology (NIST) have a mechanical quality factor at least 10 times higher than reported values for other nanoscale devices such as carbon nanotubes, and comparable to that of commercial quartz crystals. Because a high Q factor indicates ...

Carbon nanotubes to be replaced by MoSIx nanowires in high-tech devices says new study

Carbon nanotubes have long been touted as the wonder material of the future. Applications cited for carbon nanotubes range from super fast computers and ultra small electronics through to materials that are lightweight yet super strong and tougher than diamond. Several techniques have been dev...

Evidence of macroscopic quantum tunneling detected in nanowires

CHAMPAIGN, Ill. A team of researchers at the University of Illinois has demonstrated that, counter to classical Newtonian mechanics, an entire collection of superconducting electrons in an ultrathin superconducting wire is able to "tunnel" as a pack from a state with a higher electrical current t...

Strong elasticity size effects in ZnO nanowires

Recently, zinc oxide (ZnO) nanowires have drawn major interest because of their semiconducting nature and unique optical and piezoelectric properties. Various applications for ZnO nanowires have been conceived, including the next generation of field effect transistors, light emitting diodes, senso...

Spiraling nanotrees offer new twist on growth of nanowires

MADISON Since scientists first learned to make nanowires, the nano-sized wires just a few millionths of a centimeter thick have taken many forms, including nanobelts, nanocoils and nanoflowers. But when University of Wisconsin-Madison chemistry professor Song Jin and graduate student Matthew B...

Engineers make first 'active matrix' display using nanowires

WEST LAFAYETTE, Ind. - Engineers have created the first "active matrix" display using a new class of transparent transistors and circuits, a step toward realizing applications such as e-paper, flexible color monitors and "heads-up" displays in car windshields. The transistors are made of "nanow...

Chemists measure copper levels in zinc oxide nanowires

Chemists at the National Institute of Standards and Technology (NIST) have been the first to measure significant amounts of copper incorporated into zinc oxide (ZnO) nanowires during fabrication. The issue is important because copper plays a significantbut not well-understoodrole in important opti...
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