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Elsevier, Journal of Chemical Thermodynamics, (71), p. 14-18, 2014

DOI: 10.1016/j.jct.2013.11.019

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Mutual diffusion of sodium hyaluranate in aqueous solutions

Journal article published in 2014 by Luís M. P. Veríssimo, Teresa I. C. Valada, Abilio J. F. N. Sobral ORCID, Eduarda E. F. G. Azevedo, Maria L. G. Azevedo, Ana C. F. Ribeiro
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Abstract

The Taylor dispersion technique has been used for measuring mutual diffusion coefficients of sodium hyaluronate in aqueous solutions at T = 298.15 K, and concentrations ranging from (0.00 to 0.50) g · dm−3. The results are interpreted on the basis of Nernst, and Onsager and Fuoss theoretical equations. From the diffusion coefficient at infinitesimal concentration, the limiting ionic conductivity and the tracer diffusion coefficient of hyaluronate ion were estimated. These studies have been complemented by molecular mechanics calculations.