Nanosensors could detect airborne toxins instantly
20 May 2010A small device using a silicon chip in a mobile phone can help in detecting the airborne toxins such as gas leakage or any other hazardous material present in the air in real time. The tiny silicon chip will act as sensitive nose and will respond immediately through cell phone networks. The developers of the device say that the device is sensitive enough to identify the exact location and the extents of hazard.
Researchers of University of California, San Diego in collaboration with Rhevision, Inc., have successfully completed the first phase of the development of the sensor and bow working on the development of the prototype that will connect the sensor to cell phone. The research is headed by Michael Sailor, professor of Chemistry and Biochemistry at the University of California, San Diego.
The sensor, which is a porous silicon flake changes color when it interacts with toxins and by manipulating its shape and other characteristics, researchers are able to distinguish a number of hazardous materials deliberately brought near it. Researchers are now able to distinguish hundreds of different compound and recognize which is harmful.Â
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