195 Current news about the topic sensors

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Catching the lightwave: Nano-mechanical sensors 'wired' by photonics

29-Apr-2009

As researchers push towards detection of single molecules, single electron spins and the smallest amounts of mass and movement, Yale researchers have demonstrated silicon-based nanocantilevers, smaller than the wavelength of light, that operate on photonic principles eliminating the need for ...

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Fitting pieces for biosensors

15-Apr-2009

Research and industry are increasingly exploiting the potential of aptamers. As well as their application in research, medical diagnosis and treatment, aptamers are also interesting as a basis for biosensors for use in environmental analysis because their characteristics enable them to identify ...

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New security and medical sensor devices made possible by metallic nanostructures

14-Apr-2009

Scientists have designed tiny new sensor structures that could be used in novel security devices to detect poisons and explosives, or in highly sensitive medical sensors. The new 'nanosensors', which are based on a fundamental science discovery in UK, Belgian and US research groups, could be ...

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Researchers find better way to manufacture fast computer chips

06-Apr-2009

Engineers at Ohio State University are developing a technique for mass producing computer chips made from the same material found in pencils. Experts believe that graphene -- the sheet-like form of carbon found in graphite pencils -- holds the key to smaller, faster electronics. It might also ...

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Researchers develop flow sensors based on hair structures of blind cavefish

26-Mar-2009

A blind fish that has evolved a unique technique for sensing motion may inspire a new generation of sensors that perform better than current active sonar. Although members of the fish species Astyanax fasciatus cannot see, they sense their environment and the movement of water around them with ...

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Copper(I) interlocks rings and rods

11-Mar-2009

Scientists in France have synthesised highly functional [4]pseudorotaxanes utilising the gathering and threading effect of copper(I). Jean-Pierre Sauvage, Jean-Paul Collin, Valérie Heitz and colleagues from the University of Strasbourg, in France, have prepared a highly functional interlocking ...

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Taking the stress out of magnetic field detection

13-Feb-2009

Researchers at the National Institute of Standards and Technology (NIST) have discovered that a carefully built magnetic sandwich that interleaves layers of a magnetic alloy with a few nanometers of silver “spacer” has dramatically enhanced sensitivity — a 400-fold improvement in some cases. This ...

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Super sensitive gas detector goes down the nanotubes

15-Jan-2009

When cells are under stress, they blow off steam by releasing minute amounts of nitrogen oxides and other toxic gases. In a recent paper, researchers at the National Institute of Standards and Technology (NIST) described a new method for creating gas detectors so sensitive that some day they may ...

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MIT nanotubes sniff out cancer agents in living cells

Chemical engineers use carbon nanotubes to monitor chemotherapy, detect toxins at the single-molecule level

16-Dec-2008

MIT engineers have developed carbon nanotubes into sensors for cancer drugs and other DNA-damaging agents inside living cells. The sensors, made of carbon nanotubes wrapped in DNA, can detect chemotherapy drugs such as cisplatin as well as environmental toxins and free radicals that damage ...

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'Enlightened' atoms stage nano-riot againsts uniformity

Harnessing this behavior could lead to cooler computer chips, better bio-sensors

19-Nov-2008

When atoms in a crystal are struck by laser light, their electrons, excited by the light, typically begin moving back and forth together in a regular pattern, resembling nanoscale soldiers marching in a lockstep formation. But according to a new theory developed by Johns Hopkins researchers, ...

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