Functional surfaces for liquid crystal-based detection of chlorine gas
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United States of America Patent
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Feb 23, 2021
Grant Date -
Jul 11, 2019
app pub date -
Jan 10, 2019
filing date -
Jan 10, 2018
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Abstract
Liquid crystal-based devices for detecting chlorine in a sample and methods of using such devices to detect chlorine are disclosed. Such devices have a substrate surface that includes either metal cations or a metal that is in contact with a composition that includes a liquid crystal. When the device is contacted with a sample that contains chlorine, an observed change in the orientational ordering of the liquid crystal signals the presence of the chlorine. In the absence of chlorine, no change in orientational ordering occurs.
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