Rheological properties of gels formed by physical interactions between hyaluronan and cationic surfactants

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F17%3APU123516" target="_blank" >RIV/00216305:26310/17:PU123516 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0144861717304836" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0144861717304836</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbpol.2017.04.087" target="_blank" >10.1016/j.carbpol.2017.04.087</a>

Result language
angličtina
Original language name
Rheological properties of gels formed by physical interactions between hyaluronan and cationic surfactants
Original language description
The aim of this paper is the rheological characterization of the concentrated, gel-like phase, which arises from mixed solutions of sodium hyaluronate and oppositely charged surfactant above its critical micellar concentration. The effects of hyaluronan molecular weight (from 300 to 2 kDa) and the concentration of initial solutions (0.5 and 2% for hyaluronan, 50 or 200 mM for surfactant) were investigated. All systems demonstrated viscoelastic properties which can be modified over a broad range of several decades of both storage and loss moduli by the hyaluronan molecular weight and initial concentrations. The characteristic relaxation time increased with the molecular weight of hyaluronan at constant initial composition. The effect of molecular weight on characteristic moduli was dependent on initial composition – the modulus increased with molecular weight for systems with 50 mM of the surfactant and decreased for the other systems. Whereas no correlation was found between gel rheological properties and the surfactant:hyaluronan charge ratio, the properties were sensitive to structural features of surfactant molecules, particularly when low and moderate hyaluronan molecular weight was used.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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