214 Current news about the topic sensors

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Portable and precise gas sensor could monitor pollution and detect disease

22-Sep-2009

In the air, it is a serious pollutant. In the body, it plays a role in heart rate, blood flow, nerve signals and immune function. Nitric oxide, a gas well known to scientists for its myriad functions, has proven challenging to measure accurately outside the laboratory. A team of Princeton and ...

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Opto-electronic nose sniffs out toxic gases

15-Sep-2009

Imagine a polka-dotted postage stamp that can sniff out poisonous gases or deadly toxins simply by changing colors. As reported in Nature Chemistry, Kenneth Suslick and his team at the University of Illinois have developed an artificial nose for the general detection of toxic industrial chemicals ...

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Pitt researchers harness carbon nanomaterials for drug delivery systems, oxygen sensors

Researchers describe carbon nanocapsules for drug and energy storage in Advanced Materials, creation of highly sensitive oxygen sensors in Nature Chemistry

19-Aug-2009

Two nanoscale devices recently reported by University of Pittsburgh researchers in two separate journals harness the potential of carbon nanomaterials to enhance technologies for drug or imaging agent delivery and energy storage systems, in one case, and, in the other, bolster the sensitivity of ...

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New insights into the 'smell of death' could help recover bodies in disasters and solve crimes

18-Aug-2009

In an advance toward the first portable device for detecting human bodies buried in disasters and at crime scenes, scientists report early results from a project to establish the chemical fingerprint of death. Speaking here at the 238th National Meeting of the American Chemical Society (ACS), ...

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Mysterious charge transport in self-assembled monolayer transistors unraveled

13-Aug-2009

An international team of researchers from the Netherlands, Russia and Austria discovered that monolayer coverage and channel length set the mobility in self-assembled monolayer field-effect transistors (SAMFETs). This opens the door to extremely sensitive chemical sensors that can be produced in ...

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Novel temperature calibration improves NIST microhotplate technology

13-Aug-2009

Researchers at the National Institute of Standards and Technology (NIST) have developed a new calibration technique that will improve the reliability and stability of one of NIST's most versatile technologies, the microhotplate. The novel NIST device is being developed as the foundation for ...

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Icy exposure creates armored polymer high tech foams

30-Jul-2009

Chemists and engineers at the University of Warwick have found that exposing particular mixtures of polymer particles and other materials to sudden freeze-drying can create a high-tech armored foam that could be used for a number of purposes, including a new range of low power room temperature ...

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Toxin detection as close as an inkjet printer

15-Jul-2009

If that office inkjet printer has become just another fixture, it's time to take a fresh look at it. Similar technology may soon be used to develop paper-based biosensors that can detect certain harmful toxins that can cause food poisoning or be used as bioterrorism agents. In a paper published ...

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Graphene's versatility promises new applications

13-Jul-2009

Since its discovery just a few years ago, graphene has climbed to the top of the heap of new super-materials poised to transform the electronics and nanotechnology landscape. As N.J. Tao, a researcher at the Biodesign Institute of Arizona State University explains, this two dimensional honeycomb ...

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New way to make sensors that detect toxic chemicals

10-Jul-2009

Ohio State University researchers have developed a new method for making extremely pure, very small metal-oxide nanoparticles. They are using this simple, fast, and low-temperature process to make materials for gas sensors that detect toxic industrial chemicals (TICs) and biological warfare ...

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