Abstract
It has been shown that the LC cell, with parallel to the x-axis rubbing of a front face and circular rubbing of a rear face (θ-cell), filled with a nematic LC-805 doped by 7-Dehydrocholesterol (Provitamin D3) allows visual monitoring of the UV photoinduced conversions of Provitamin D by deviation of the disclinaton line. After an UV exposure, relaxation processes in the LC matrix result in further dark change in the deviation angle that complicates the use of θ-cell as a UV biodosimeter. Temperature dependence of dynamic behavior of the disclinaton line was investigated additionally since it is important for a UV biosensor.
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