Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
VENEROVÁ, T. PEKAŘ, M.
Originální název
Rheological properties of gels formed by physical interactions between hyaluronan and cationic surfactants
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
Hyaluronan, cationic surfactants, rheology, gels
Autoři
VENEROVÁ, T.; PEKAŘ, M.
Vydáno
24. 4. 2017
ISSN
0144-8617
Periodikum
Carbohydrate Polymers
Ročník
170
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
176
Strany do
181
Strany počet
6
URL
http://www.sciencedirect.com/science/article/pii/S0144861717304836
BibTex
@article{BUT135370, author="Tereza {Venerová} and Miloslav {Pekař}", title="Rheological properties of gels formed by physical interactions between hyaluronan and cationic surfactants", journal="Carbohydrate Polymers", year="2017", volume="170", number="1", pages="176--181", doi="10.1016/j.carbpol.2017.04.087", issn="0144-8617", url="http://www.sciencedirect.com/science/article/pii/S0144861717304836" }