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Cholesteric Liquid Crystals as Multi-Purpose Sensor Materials  

Lisetski, L.N. (Institute for Scintillation Materials of STC Institute for Single Crystals of the National Academy of Sciences)
Publication Information
Journal of Radiation Protection and Research / v.30, no.1, 2005 , pp. 27-30 More about this Journal
Abstract
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.
Keywords
cholesteric liquid crystals; ionizing radiation; UV radiation; vapor detection; bioequivalent detectors;
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