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The world's tiniest temperature sensor is powered by radio waves

Engineers have developed a very tiny wireless temperature sensor that is powered in a very special way: from the radio waves that are part of the sensor's wireless network. This means that the sensor needs not even a single wire, nor a battery that would have to be replaced.

Posted: Dec 7th, 2015

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Stretchable hydrogel electronics (w/video)

Engineers have designed what may be the Band-Aid of the future: a sticky, stretchy, gel-like material that can incorporate temperature sensors, LED lights, and other electronics, as well as tiny, drug-delivering reservoirs and channels. The 'smart wound dressing' releases medicine in response to changes in skin temperature and can be designed to light up if, say, medicine is running low.

Posted: Dec 7th, 2015

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Materials scientists learn how mother of pearl is made

Researchers have uncovered the process by which mollusks manufacture nacre - commonly known as 'mother of pearl'. Knowing how it's made could lead to new methods to synthesize a variety of new materials with as yet unguessed properties.

Posted: Dec 4th, 2015

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Nanoscale drawbridges open path to color displays

A new method for building 'drawbridges' between metal nanoparticles may allow electronics makers to build full-color displays using light-scattering nanoparticles that are similar to the gold materials that medieval artisans used to create red stained-glass.

Posted: Dec 4th, 2015

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Building better bilayers

A strategy for generating stable lipid bilayers could simplify the study of biologically important membrane proteins.

Posted: Dec 4th, 2015

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Nano-thin plates that can be picked up by hand

Despite being thousands of times thinner than a sheet of paper and hundreds of times thinner than household cling wrap or aluminum foil, corrugated plates of aluminum oxide spring back to their original shape after being bent and twisted.

Posted: Dec 3rd, 2015

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Measuring nanoscale features with fractions of light

Using a novel microscope that combines standard through-the-lens viewing with a technique called scatterfield imaging, researchers accurately measured patterned features on a silicon wafer that were 30 times smaller than the wavelength of light (450 nanometers) used to examine them.

Posted: Dec 3rd, 2015

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