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Nanotechnology Spotlight

Behind the buzz and beyond the hype:
Our Nanowerk-exclusive feature articles

Showing Spotlights 1513 - 1520 of 1604 in category (newest first):

 

The challenge of synthesizing magnetic nanostructures

The scientific interest in magnetic nanostructures, both from a fundamental viewpoint and also due to their potential in a wide range of applications, over the past few years has led researchers to develop various nanofabrication methods for synthesizing nanomagnets. Applications for nanomagnetic materials include non-volatile magnetic random access memory (MRAM), highly sensitive magnetic field sensor, field programmable spin logic, and patterned media for ultra high density data storage.

Posted: Jun 20th, 2006

Electrochromic devices based on tungsten oxide

An electrochromic display is one of the most attractive candidates for paper-like displays, so called electronic paper, which will be the next generation display, owing to attributes such as thin and flexible materials, low-power consumption, and fast switching times.

Posted: Jun 19th, 2006

Vibrational in situ analysis of individual molecules

Single molecule Raman spectroscopy of molecules on metal surfaces was achieved by means of optical field-enhancement from a scanning probe tip. This was made possible by the optical antenna configuration formed by optical coupling between metallic tip and the substrate.

Posted: Jun 16th, 2006

Natural polymer nanofibers for cartilage repair

Scientists at the University of Washington are developing natural polymer based nanofibers using electrospinning to mimic the native extracellular matrix of cartilage in terms of microstructure, mechanical properties, and chemical composition. This reesearch holds great implication for the generation of functional cartilage tissues to help the millions of people who suffer from degeneration of articular cartilage due to primary osteoarthritis or trauma.

Posted: Jun 15th, 2006

A novel approach for the design of fluorescent sensors

Researchers in Germany report a novel approach for the design of environmental sensors based on fluorescence interference contrast (FLIC) of semiconductor nanocrystals near a reflecting silicon surface. Their method is based on nanocrystals incorporated into polymer layers grafted onto reflecting surfaces.

Posted: Jun 14th, 2006

Acoustic sensors made from magnetic nanowires

Researchers took inspiration from the packaging and transduction processes of the cochlea and cilia in the inner ear to design acoustic sensors made from nanowires. Specifically, they used nanowires of magnetostrictive materials as artificial cilia to sense acoustic signals. Any acoustic sensor application may benefit from this work.

Posted: Jun 13th, 2006

Novel use of polymer nanofibers as filters for chemical warfare defense

Researchers in Singapore functionalized a polymer nanofiber membrane to capture chemical warfare agents such as nerve agents. The nanofibers in the membrane act as a substrate on which the nerve agents get physically adsorbed followed by chemical decomposition.

Posted: Jun 12th, 2006