Detail publikace

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

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"
}