A novel method to estimate the stiffness of carbohydrate polyelectrolyte polymers based on the ionic strength dependence of zeta potential

作者：Abodinar Atiga; Smith Alan M; Morris Gordon A^*

来源：Carbohydrate Polymers, 2014, 112: 6-9.

DOI：10.1016/j.carbpol.2014.05.063

• Intrinsic viscosity
• Zeta potential
• Polysaccharide conformation
• Persistence length

Polysaccharides have received a great deal of attention from, for example, the food, cosmetic and pharmaceutical industries. Their conformations (flexibility/stiffness) span a wide range of conformational flexibilities with large hydrated volumes, these properties are important in relation to polysaccharide structure-function relationships.
Perhaps the simplest parameter available to estimate the dilute solution conformation of polysaccharides is the Smidsrod-Haug stiffness parameter (B) where the stiffness of polyelectrolytes can be estimated by measuring the intrinsic viscosity at a number of different ionic strengths.
In this paper we propose an alternative method for estimating the Smidsrod-Haug stiffness parameter (B) using the ionic strength dependency of zeta potential. For this purpose we have studied a number of different polysaccharides.

• 出版日期2014-11-4