The viscometric behaviour of sodium hyaluronate in aqueous and KCl solutions

Autor:	Karolína Žáková, Jana Juříková, Ivana Kupská, Lubomír Lapčík, Barbora Lapčíková
Rok vydání:	2014
Předmět:	chemistry.chemical_compound Colloid and Surface Chemistry Aqueous solution Chemistry Intrinsic viscosity Sodium hyaluronate Fluorescence spectrometry Analytical chemistry sense organs Electrolyte Atmospheric temperature range Fluorescence Spectrophotometry Macromolecule
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. 454:32-37
ISSN:	0927-7757
Popis:	This paper deals with the viscometric characterization of sodium hyaluronate aqueous and (1:1) electrolyte (KCl) solutions at defined pH and temperature. The solution properties affected the macromolecular chain coil dimensions by triggering their expansion or contraction. Studied hyaluronate solutions viscosities at temperature range of 25–35 °C reflect conformation transition from a double helix to statistical coil as revealed by a step change of Huggin’ constant at 30 °C. A change in the slope of the observed reduced specific viscosity induced by temperature change was a further indication of the double helix-coil transition. The effects were simultaneously confirmed by fluorescence spectrometry measurements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ae330bab9aef99a7d5cc3bf5661de361 https://doi.org/10.1016/j.colsurfa.2014.04.018 Zobrazit plný text záznamu Full Text from ScienceDirect