Quasi-Elastic Light Scattering from Solutions of Macromolecules. II. Doppler Broadening of Light Scattered from Solutions of Semi-Flexible Polymers, F-Actin

  • Fujime Satoru
    Department of Physics, Faculty of Science, Nagoya University

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説明

By use of an optical self-beat method, the spectral density of light scattered from solutions of a semi-flexible polymer, F-actin, was measured for various scattering angles. The analysis of spectral densities gave the relaxation time of the lowest order internal mode of a bending motion of F-actin. From the experimental value of the relaxation time, the mean square end-to-end distance was estimated which agrees with the observation by electron microscopy. The present method makes it possible to estimate the flexibility of polymers.

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