205 Current news about the topic sensors

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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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'Lab on a chip' to give growers real-time glimpse into water stress in plants

08-Jul-2009

Fifteen years ago, when Alan Lakso first sought to enlist Cornell's nanofabrication laboratory to develop a tiny sensor that would measure water stress in grapevines, the horticultural sciences professor ended up back at the drawing board. It wasn't until Abraham Stroock, associate professor of ...

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University of Leicester researchers discover new fluorescent silicon nanoparticles

Research may ultimately track the uptake of drugs by the body's cells

02-Jul-2009

Researchers in the Department of Physics and Astronomy at the University of Leicester have developed a new synthesis method, which has led them to the discovery of fluorescent silicon nanoparticles and may ultimately help track the uptake of drugs by the body's cells. Dr Klaus von Haeften ...

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UGA researchers achieve breakthrough in effort to develop tiny biological fuel cells

23-Jun-2009

University of Georgia researchers have developed a successful way to grow molecular wire brushes that conduct electrical charges, a first step in developing biological fuel cells that could power pacemakers, cochlear implants and prosthetic limbs. The journal Chemical Science calls the technique ...

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NYU researchers create method to precisely glue particles together on the micro- and nano-scale

16-Jun-2009

Researchers at New York University have created a method to precisely bind nano- and micrometer-sized particles together into larger-scale structures with useful materials properties. Their work, which appears in the latest issue of the journal Nature Materials, overcomes the problem of ...

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Colon cancer screening technique shows continued promise in new study

11-Jun-2009

Recent clinical trials show that a new colon cancer screening technique created by Northwestern University researchers has a high enough sensitivity that it could potentially be as or more successful than a colonoscopy in screening for colon cancer. The technique uses optical technology, called ...

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Biomimetic-engineering design can replace spaghetti tangle of nanotubes in novel material

03-Jun-2009

Nanoelectromechanical systems (NEMS) devices have the potential to revolutionize the world of sensors: motion, chemical, temperature, etc. But taking electromechanical devices from the micro scale down to the nano requires finding a means to dissipate the heat output of this tiny gadgetry. In a ...

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Enabling graphene-based technology via chemical functionalization

19-May-2009

Graphene is an atomically thin sheet of carbon that has attracted significant attention due to its potential use in high-performance electronics, sensors and alternative energy devices such as solar cells. While the physics of graphene has been thoroughly explored, chemical functionalization of ...

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MIT reels in RNA surprise with microbial ocean catch

15-May-2009

An ingenious new method of obtaining marine microbe samples while preserving the microbes' natural gene expression has yielded an unexpected boon: the presence of many varieties of small RNAs — snippets of RNA that act as switches to regulate gene expression in these single-celled creatures. ...

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Nanoneedle is small in size, but huge in applications

30-Apr-2009

Researchers at the University of Illinois have developed a membrane-penetrating nanoneedle for the targeted delivery of one or more molecules into the cytoplasm or the nucleus of living cells. In addition to ferrying tiny amounts of cargo, the nanoneedle can also be used as an electrochemical ...

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