Three operation modes of the vitamin-D-biodosimeter

Irina P. Terenetskaya

doi:10.1117/12.2229756

28 April 2016 Three operation modes of the vitamin-D-biodosimeter

Irina P. Terenetskaya

Proceedings Volume 9887, Biophotonics: Photonic Solutions for Better Health Care V; 98871R (2016) https://doi.org/10.1117/12.2229756
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

The original UV biodosimeter for an in situ monitoring of the vitamin-D-synthetic capacity of sunlight and/or artificial UV sources is based on the same photoreaction in vitro by which vitamin D is synthesized in human skin from initial provitamin D via photo- and thermo-induced monomolecular isomerizations. Therefore, targets for UV photons in the biodosimeter are the provitamin D molecules embedded in specially designed UV transparent and stable matrix. The dosimeter response to UV radiation is photoinduced conversion of provitamin D into previtamin D which is immediate precursor of vitamin D. Thus, biological ‘antirachitic’ UV dose is determined by the amount of accumulated previtamin D. To follow the photoreaction course in real time three operation modes of varying complexity have been developed.

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Irina P. Terenetskaya "Three operation modes of the vitamin-D-biodosimeter", Proc. SPIE 9887, Biophotonics: Photonic Solutions for Better Health Care V, 98871R (28 April 2016); https://doi.org/10.1117/12.2229756

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KEYWORDS

Ultraviolet radiation

Absorption

In vitro testing

Calibration

Molecules

Skin

Absorbance

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