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Thursday, September 05, 2013

#SENSORS: "E-Nose Sensitivity Boosted by Nanotubes"

Electronic noses can sniff out almost any chemical, but can be temperamental since detected molecules must be precisely positioned on the business end of the sensor. Now researchers have created bundles of nanotubes with space between them where molecules can be surrounded by the sensor, making the up to 100,000 times more sensitive--almost enough to detect a single molecule of a hazardous substance: R. Colin Johnson @NextGenLog


Bundles of carbon nanotubes with curved tips improve e-nose's sensitivity by letting through Raman scattered light to boost sensitivity of chemical detector.
SOURCE: H.G. Park / ETH Zurich)
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