Development of personal biodosimeter of UV radiation based on vitamin D photosynthesis in nematic liquid crystal matrix

Домашня сторінка
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Фізико-технічні та математичні науки
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Відділення фізики і астрономії
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Semiconductor Physics Quantum Electronics & Optoelectronics
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Semiconductor Physics Quantum Electronics & Optoelectronics, 1999, том 2
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Semicond. Physics Quantum Electronics & Optoelectronics, 1999, № 4
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Development of personal biodosimeter of UV radiation based on vitamin D photosynthesis in nematic liquid crystal matrix

Dyadyusha, A.G. ; Gvozdovsky, I.A. ; Salkova, E.N. ; Terenetskaya, I.P.

Інший ID: PACS: 42.79.K

URI: http://dspace.nbuv.gov.ua/handle/123456789/120261

Посилання: Development of personal biodosimeter of UV radiation based on vitamin D photosynthesis in nematic liquid crystal matrix / A.G. Dyadyusha, I.A. Gvozdovsky, E.N. Salkova, I.P. Terenetskaya // Semiconductor Physics Quantum Electronics & Optoelectronics. — 1999. — Т. 2, № 4. — С. 91-95. — Бібліогр.: 11 назв. — англ.

Підтримка: We would like to express our gratitude to Dr. Sofia Torgova (SSC of Russian Federation «NIOPIK») for helpful advice and generous gift of LC-805, and to Dr. Wolfgang Reischl (University of Vienna) for his help with synthesis of 7-dehydrocholesterol-Benzoate.

Дата: 1999

Завантажень: 395

Development of personal biodosimeter of UV radiation based on vitamin D photosynthesis in nematic liquid crystal matrix

Анотація:

A new approach to the problem of personal UV biodosimeter is described. Nematic liquid crystal (LC-805) is converted into induced cholesteric phase using photosensitive chiral dopant of steroid biomolecules (7-dehydrocholesterol (provitamin D3) or 7-DHC-benzoate). Significant changes in optical characteristics of the LC films depending on the duration of UV exposure are observed as a result of UV initiated photoisomerizations that change helical twisting power of dopant molecules.

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