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Proceedings Paper

Towards modelling of stochastic kinetics for process related to photochromic dye semi-intercalation in DNA-based polymer matrix
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Paper Abstract

The semi-intercalation of an azo-dye Disperse Red 1 (DR1) molecule into a biopolymeric material made of deoxyribonucleic acid (DNA) complexed with the cationic surfactant hexadecyltrimethyl-ammonium chloride (CTMA) formulated recently1-3 has successfully explained the main experimental results4 of laser dynamic inscription of diffraction gratings: short response time, low diffraction efficiency, single-exponential kinetics and flat wavelength dependence.5 In this paper we generalize the analytic model of Ref.2 to account for a more realistic dynamics of DNA-CTMA matrix. To this end we extend the model of paper5 by including into it probabilistic features of local free volume in DNA matrix which characterize, in a simple way, the spatial distribution of local voids which, in turn play the central role for the kinetics of photoinduced trans-cis-trans cycles of DR1 dye under the polarized laser light illumination. We discuss a stochastic master equation which generalizes the simple model of Ref.2 and address briefly the topic of non-exponential grating inscription in modelling and in recent experiments.

Paper Details

Date Published: 2 September 2011
PDF: 8 pages
Proc. SPIE 8103, Nanobiosystems: Processing, Characterization, and Applications IV, 810309 (2 September 2011); doi: 10.1117/12.893549
Show Author Affiliations
Antoni C. Mitus, Wroclaw Univ. of Technology (Poland)
Grzegorz Pawlik, Wroclaw Univ. of Technology (Poland)
Wojciech Kordas, Wroclaw Univ. of Technology (Poland)
Jaroslaw Mysliwiec, Wroclaw Univ. of Technology (Poland)
Andrzej Miniewicz, Wroclaw Univ. of Technology (Poland)
Francois Kajzar, Polytechnical Univ. of Bucharest (Romania)
Univ. d'Angers (France)
Ileana Rau, Polytechnical Univ. of Bucharest (Romania)
James G. Grote, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 8103:
Nanobiosystems: Processing, Characterization, and Applications IV
Norihisa Kobayashi; Fahima Ouchen; Ileana Rau, Editor(s)

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