189 Current news about the topic sensors

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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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Brushing up on sensors

14-Nov-2008

Jason Locklin and his colleagues from the University of Georgia have developed covalently bound polymer brushes that can bind metal ions when irradiated with UV light. The polymer brushes, containing spiropyran moieties, were synthesised using atom transfer radical polymerisation ...

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New small-scale generator produces alternating current by stretching zinc oxide wires

11-Nov-2008

Researchers have developed a new type of small-scale electric power generator able to produce alternating current through the cyclical stretching and releasing of zinc oxide wires encapsulated in a flexible plastic substrate with two ends bonded. The new "flexible charge pump" generator is the ...

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Making cars and airplanes cheaper, safer and more efficient

DFG funds 2 major instruments to test components made of fiber-reinforced composites

11-Nov-2008

Two novel testing facilities for materials research will be provided to the Technical University of Braunschweig and Hamburg University of Technology by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation). For the first time in a university environment, these two major ...

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Sniffing out a better chemical sensor

Researchers at the NIST have created a new approach for “electronic noses”

31-Oct-2008

Marrying a sensitive detector technology capable of distinguishing hundreds of different chemical compounds with a pattern-recognition module that mimics the way animals recognize odors, researchers at the National Institute of Standards and Technology (NIST) have created a new approach for ...

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'Chemical equator' discovery will aid pollution mapping

26-Sep-2008

Scientists at the University of York have discovered a 'Chemical Equator' that divides the polluted air of the Northern Hemisphere from the largely uncontaminated atmosphere of the Southern Hemisphere. Researchers from the University's Department of Chemistry found evidence for an atmospheric ...

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'Edible optics' could make food safer

Tufts researchers design bio-friendly optical platform for sensing applications in medicine, health, environment, communications

11-Aug-2008

Imagine an edible optical sensor that could be placed in produce bags to detect harmful levels of bacteria and consumed right along with the veggies. Or an implantable device that would monitor glucose in your blood for a year, then dissolve. Scientists at Tufts University's School of ...

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