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Proceedings Paper

Laser study of thermal neutron irradiation influence on simple biological membrane models
Author(s): Mihaela Dumitru Ghelmez; Elena Slavnicu; Cristian Toma; Andreea-Rodica Sterian; Razvan I. Trascu
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Paper Abstract

In this paper, thin films of some fatty acids and fatty acid-cholesterol mixtures were investigated as biological membrane simple models, in order to establish the thermal neutron irradiation influence on these systems, while in the smectic C liquid crystal state. Samples are nonlinear dielectrics with a weak conduction, and nonlinear optical media. They generally present some memore effects. Cholesterol modifies these properties depending on its percentage in mixture and saturated or unsaturated character of the acid. After exposed to a flow of thermal neutrons, texture and behavioral changes, in terms of content of cholesterol in mixtures, and depending on the number of carbon atoms, were emphasized.

Paper Details

Date Published: 22 April 2005
PDF: 5 pages
Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); doi: 10.1117/12.618470
Show Author Affiliations
Mihaela Dumitru Ghelmez, Politehnica Univ. of Bucharest (Romania)
Elena Slavnicu, Politehnica Univ. of Bucharest (Romania)
Cristian Toma, Politehnica Univ. of Bucharest (Romania)
Andreea-Rodica Sterian, Politehnica Univ. of Bucharest (Romania)
Razvan I. Trascu, Univ. de Medicina si Farmacie Carol Davila (Romania)


Published in SPIE Proceedings Vol. 5830:
13th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Sanka V. Gateva; Lachezar A. Avramov; Alexander A. Serafetinides, Editor(s)

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