Effects of molecular size and configuration on hindered diffusion were examined by measuring diffusion of two series of uncharged macromolecules through track‐etch membranes with uniform and well‐defined pore geometry. At any given Stokes‐Einstein radius, diffusivities in small pores were lower for ficoll (crosslinked structure) than for dextran (more nearly linear structure).
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Deen et al. (1981) studied this question.
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