6 December 2006 Bioequivalent UV detectors based on cholesteric liquid crystals: effects of spectral composition and quantitative account for intensity of UV radiation
Author Affiliations +
Proceedings Volume 6023, Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals; 60230F (2006) https://doi.org/10.1117/12.648198
Event: Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 2005, Alushta, Ukraine
Abstract
Response of cholesteric sensor materials to biologically active UV radiation has been studied. The sensor mixture comprised a cholesteric liquid crystalline matrix doped with provitamin D, and changes in the maximum selective reflection wavelength λmax caused by the photochemical reaction of provitamin D → vitamin D transformation were recorded. Using a UV source (DRT-240 lamp) calibrated accounting for the specific irradiation geometry, λmax shifts were obtained as function of UV illuminance dose (in J/cm2). Using a set of optical filters cutting off specified parts of the provitamin D absorption spectrum, effects of the spectral composition of UV radiation upon the response characteristics of sensor were determined. The results obtained support our earlier considerations of the developed sensor material as "bioequivalent".
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Longin N. Lisetski, Longin N. Lisetski, Valentina D. Panikarskaya, Valentina D. Panikarskaya, Natalya A. Kasyan, Natalya A. Kasyan, Leonid V. Grishchenko, Leonid V. Grishchenko, Irina P. Terenetskaya, Irina P. Terenetskaya, } "Bioequivalent UV detectors based on cholesteric liquid crystals: effects of spectral composition and quantitative account for intensity of UV radiation", Proc. SPIE 6023, Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 60230F (6 December 2006); doi: 10.1117/12.648198; https://doi.org/10.1117/12.648198
PROCEEDINGS
4 PAGES


SHARE
Back to Top