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KMID : 0364920050300010027
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Journal of Radiation Protection and Research
2005 Volume.30 No. 1 p.27 ~ p.30
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Cholesteric Liquid Crystals as Multi-Purpose Sensor Materials
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Lisetski L.N.
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Abstract
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New possibilities are discussed for cholesteric liquid crystals (CLC) as sensor materials for detection of ionizing radiation, biologically active UV radiation, and the presence of hazardous vapors in atmosphere. A distinguishing property of CLC-based detectors is their ’’bioequivalence’’, i.e., mechanisms of their response to external factors essentially imitate the corresponding mechanisms of biological tissues. Such detectors can ensure sufficiently high sensitivity to make feasible their use as alarm indicators or in biophysical studies. Specific examples ate given of sensor compositions and their response characteristics.
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KEYWORD
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cholesteric liquid crystals, ionizing radiation, UV radiation, vapor detection, bioequivalent detectors
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