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A general method for evaluation of diffusion constants, dilute‐solution viscoelasticity, and the dielectric property of a rigid macromolecule with an arbitrary configuration. I
Author(s) -
Nakajima Haruhiko,
Wada Yasaku
Publication year - 1977
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1977.360160411
Subject(s) - macromolecule , rotational diffusion , chemistry , spheres , molecule , dielectric , viscoelasticity , diffusion , matrix (chemical analysis) , constant (computer programming) , classical mechanics , computational chemistry , thermodynamics , physics , organic chemistry , quantum mechanics , chromatography , biochemistry , astronomy , computer science , programming language
As the first part of the study on relaxational behavior of rigid macromolecules in solution, a general method for evaluating diffusion constants of a rigid macromolecule with an arbitrary configuration in a viscous solvent is presented. The evaluation is made by modeling the molecule with a rigid assembly of Stokes spheres. The diffusion constants are expressed by a 6 × 6 matrix which consists of translational, rotational, and cross constants, each being a 3 × 3 submatrix. Procedures of numerical calculation are presented for a given configuration of the molecule, together with some exemplifying results for the rigid rod, rigid sphere, and myosin molecule. The results for the rod and the sphere are compared with analytical results.