Viscoelastic and transient network properties of hyaluronic acid as a function of the concentration.
Rheological measurements on a high molecular weight Hyaluronic Acid (from rooster combs) were performed to obtain information on the viscoelastic and temporary network characteristics of Hyaluronic Acid solutions as a function of the concentration. From rheological experiments, the critical concentration c* and the concentration dependency of the plateau modulus G degrees e were determined. Further on, structural parameters as Me, the average molecular weight of the polymer segments between entanglement points, and DN, the average distance between entanglement points, were estimated.
Institut für Physikalische Chemie, Karl-Franzens-Universität Graz, Austria.
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De Smedt
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Dekeyser
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V
Ribitsch
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A
Lauwers
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Demeester
D000818:Animals; D004548:Elasticity; D006820:Hyaluronic Acid / Q000737:chemistry*; D008956:Models, Chemical; D008970:Molecular Weight; D012212:Rheology; D014783:Viscosity
D006820:Hyaluronic Acid