Characterization at 25 °C of Sodium Hyaluronate in Aqueous Solutions Obtained by Transport Techniques

Molecules

Aleš Mráპk¹  Lenka Gřundělová⁴  Antonín Minařík¹  Luís M. P. Veríssimo²  Marisa C. F. Barros²  Ana C. F. Ribeiro²  Vito Ferro³ 

[1] Department of Physics and Material Engineering, Faculty of Technology, Tomas Bata University in Zlín, nám. T.G.Masaryka 275, Zlín 762 72, Czech Republic; E-Mail:;Coimbra Chemistry Centre, Department of Chemistry, University of Coimbra, Coimbra 3004-535, Portugal; E-Mails:;Department of Physics and Material Engineering, Faculty of Technology, Tomas Bata University in Zlín, nám. T.G.Masaryka 275, Zlín 762 72, Czech Republic; E-Mail;Centre of Polymer Systems, Tomas Bata University in Zlín, nám. T.G. Masaryka 5555, Zlín 760 01, Czech Republic, E-Mail:

关键词: diffusion coefficients;    transport properties;    sodium hyaluronate;    Taylor dispersion;    Huggins constant;    limiting viscosity number;   

DOI  :  10.3390/molecules20045812

来源: mdpi

【 摘 要 】

Mutual diffusion coefficients, D, were determined for aqueous solutions of sodium hyaluronate (NaHy) at 25 °C and concentrations ranging from 0.00 to 1.00 g·dm⁻³ using the Taylor dispersion technique. From these experimental data, it was possible to estimate some parameters, such as the hydrodynamic radius R_h, and the diffusion coefficient at infinitesimal concentration, D⁰, of hyaluronate ion, permitting us to have a better understanding of the structure of these systems of sodium hyaluronate in aqueous solutions. The additional viscosity measurements were done and Huggins constant, k_H, and limiting viscosity number, [η], were computed for interaction NaHy/water and NaHy/NaHy determination.

【 授权许可】

CC BY   
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