Thermal stability of sodium hyaluronate in aqueous solution
β Scribed by Lowry, Karen M. ;Beavers, Ellington M.
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 564 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0021-9304
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β¦ Synopsis
Abstract
Since its identification 60 years ago as a ubiquitous component of the body of mammals, hyaluronic acid has been widely studied, primarily in the fields of medicine and biology. On the other hand, our research has dealt with hyaluronic acid as a chemical intermediate in the synthesis of novel lubricious coatings, and in this connection data were needed on stability of aqueous solutions of the polymer over a range of temperatures from 25β100Β°C. The investigation reported here provides that information, obtained by exposing samples in sealed ampules in baths a controlled temperatures and determining the resultin change in viscosity of the solutions. Data of this kind have not previously been reported on sodium hyaluronate free from the proteins and other organics normally associate with the polymer in its natural environment. Β© 1994 John Wiley & Sons, Inc.
π SIMILAR VOLUMES
Aggregation properties of sodium hyaluronate (NaHA) with alkanediyl-Ξ±,Ο-bis(dimethylalkylammonium bromide) surfactants (referred to as dimeric surfactants) in aqueous sodium chloride solutions have been studied as a function of surfactant chemical structure. Surface tension measurements indicate the
SSD10008-6215 (94) 00147-g ' ' Carboxyl bands' ' .-The bands at 1616 and 1413 cm-' are assigned to the asymmetric and symmetric stretching modes of the planar carboxyl groups in sodium hyaluronate,