A sensing device tailored for mass production of highly sensitive and stable nerve-gas detectors has been developed by a research group led by a mechanical engineer at The University of Texas at Austin.
The new sensor technology, which was more sensitive and much more stable than its predecessors, was featured on this week’s cover of Applied Physics Letters. The researchers’ highlighted study demonstrated the sensor’s potential ability to detect a single molecule of the nerve gas, sarin, the most toxic of biological warfare agents.
The researchers, led by Dr. Li Shi, designed and tested a nanometer-thin crystal of tin oxide sandwiched between two electrodes. When a built-in micro-heater heated the super-thin device, the tin oxide reacted with exquisite sensitivity to gases.
Becky Rische | EurekAlert!
Further information:
http://www.engr.utexas.edu
http://www.utexas.edu
Writing and deleting magnets with lasers
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Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
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In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
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