Air/Gas Sensing
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Finding a needle in a haystack
New sensor developed by MIT chemical engineers can detect tiny traces of explosives.
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Drawing a line, with carbon nanotubes
New low-cost, durable carbon nanotube sensors can be etched with mechanical pencils.
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New mid-infrared laser system could detect atmospheric chemicals
Laser pulses produce glowing plasma filaments in open air, could enable long-distance monitoring.
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Wireless, wearable toxic-gas detector
Inexpensive sensors could be worn by soldiers to detect hazardous chemical agents.
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Detecting gases wirelessly and cheaply
New sensor can transmit information on hazardous chemicals or food spoilage to a smartphone.
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Speedy terahertz-based system could detect explosives
Spectroscopic system with chip-scale lasers cuts detection time from minutes to microseconds.
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Nanobionic spinach plants can detect explosives
After sensing dangerous chemicals, the carbon-nanotube-enhanced plants send an alert.