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发帖数: 589 | 1 ... To make the chips, researchers started with a thin slide of glass, on
which they built arrays of microheaters using lithographic techniques. They
then deposited poly-N-isopropylacrylamide (pNIPAM), a temperature sensitive
polymer, onto the microheater arrays. At temperatures below about 90 degrees
Fahrenheit in a liquid environment, the polymer exists in a water-saturated,
gel-like state. But when the temperature exceeds that threshold, the polymer's
chemical properties change. It becomes wa |
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