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Conferences > PCS > 1996 > SaA > SaA.3

Investigation of internal motions of high-molecular DNA by Dynamic Light Scattering

M.A. Ivanova, M.A. Ivanova, A. V. Arutyunyan, A. V. Lomakin, and V.A. Noskin

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Abstract

Dynamic Light Scattering (DLS) is widely used to study the internal dynamics of biological and synthetic macromolecules. In our internal dynamics investigations we used the approach advanced by Akcasu et al. [1,2]. It consists in obtaining the dynamic characteristics of random coils using the calculations of the first cumulants. We compared the angular dependence of the first cumulant predicted theoretically with that obtained experimentally. We observed the first cumulant transition from the asymptotic for good solvent to the asymptotic for Θ condition in the intermediate q region.

© 1996 Optical Society of America

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