Chemical sensors
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United States of America Patent
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Jun 9, 1992
Issued Date -
N/A
app pub date -
Jul 1, 1991
filing date -
Apr 13, 1990
priority date (Note) -
Expired
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Abstract
Sensors responsive to small changes in the concentration of chemical species are disclosed, comprising a mechanicochemically responsive polymeric film capable of expansion or contraction in response to a change in its chemical environment, either operatively coupled to a transducer capable of directly converting the expansion or contraction to a measurable electrical or optical response, or adhered to a second inert polymeric strip, or doped with a conductive material.
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