13 September 2016 Dynamical light scattering for DNA-CTMA:DR1 chains: wormlike semi-flexible model, coil size and persistence length
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Abstract
Recent experimental Dynamic Light Scattering (DLS) studies of the coil sizes of DNA-CTMA:Rh solutions have lead to numerical discrepancies with theoretical predictions amounting to one-two orders of magnitude.1 In this paper, which has partially character of a tutorial, we present the basic theoretical concepts underlying an analysis of the polymer coil sizes from DLS experiments. In particular, we discuss the limitations of those methods. We present a wormlike model of a polymer chain which is a promising candidate for inferring information about the spatial structure of the DNA chain from experimental data.
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A. C. Mitus, W. Radosz, G. Pawlik, C. A. Lazar, F. Kajzar, I. Rau, "Dynamical light scattering for DNA-CTMA:DR1 chains: wormlike semi-flexible model, coil size and persistence length", Proc. SPIE 9928, Nanobiosystems: Processing, Characterization, and Applications IX, 992807 (13 September 2016); doi: 10.1117/12.2238000; https://doi.org/10.1117/12.2238000
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