Dynamic light scattering (DLS), viscosity and surface tension (SFT) measurements were used to characterize influence of salts containing ions of Hofmeister series (Na2SO4, (NH4)2SO4, NaSCN, NH4SCN and NaCl) on the behaviour of hyaluronan in diluted solutions at a temperature range of 15-45 °C. The results of the study showed that chaotropic and kosmotropic ions notably influenced the folding and unfolding of hyaluronan coils due to interactions between a respective ion and hydrophilic or hydrophobic patches present in the backbone of the polymer chains. This was mainly proved by viscosity and light scattering measurements. The temperature dependence of the hydrodynamic diameter of the hyaluronan coil determined by DLS demonstrated that combinations of chaotropic and kosmotropic ions in one salt (NaCl, NaSCN and (HN4)2SO4) can stabilize the size of the coil in a wide range of temperatures. Tensiometry measurements indicated that certain types of ions present in the solution caused an unfolding of the hyaluronan coils, leading to a decrease of SFT.

Centre of Polymer Systems Tomas Bata University in Zlín nám T G Masaryka 5555 760 01 Zlín Czech Republic; Tomas Bata University in Zlín Faculty of Technology Department of Fat Surfactant and Cosmetics Technology nám T G Masaryka 5555 760 01 Zlín Czech Republic

Tomas Bata University in Zlín Faculty of Technology Department of Physics and Material Engineering nám T G Masaryka 5555 760 01 Zlín Czech Republic

Tomas Bata University in Zlín Faculty of Technology Department of Physics and Material Engineering nám T G Masaryka 5555 760 01 Zlín Czech Republic; Centre of Polymer Systems Tomas Bata University in Zlín nám T G Masaryka 5555 760 01 Zlín Czech Republic

Citace poskytuje Crossref.org

Interactions between Sodium Hyaluronate and β-Cyclodextrin as Seen by Transport Properties

Effect of Hofmeister Ions on Transport Properties of Aqueous Solutions of Sodium Hyaluronate

Electrospinning of Hyaluronan Using Polymer Coelectrospinning and Intermediate Solvent