CHARACTERIZATION OF HYDROGELS BY MACRO AND MICRORHEOLOGICAL TECHNIQUES

1 LASTUVKOVA Marcela
Co-authors:
1 SMILEK Jiri 1 KALINA Michal 2 KRACALIK Milan 1 KRATOCHVILOVA Romana 1 PEKAR Miloslav
Institutions:
1 Brno University of Technology, Faculty of Chemistry, Brno, Czech Republic, EU
2 Johannes Kepler University Linz, Institute of Polymer Science, Linz, Austria, EU
Conference:
8th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 19th - 21st 2016
Proceedings:
Proceedings 8th International Conference on Nanomaterials - Research & Application
Pages:
792-797
ISBN:
978-80-87294-71-0
ISSN:
2694-930X
Published:
17th March 2017
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
17 views / 6 downloads
Abstract

The main aim of this contribution is the study of mechanical properties of hydrogels systems by classical rheological techniques (oscillation measurements) and further correlation of mechanical properties with inner structural and mechanical properties determined by novel microrheological techniques (dynamic light scattering, fluorescence correlation spectroscopy). As a model hydrogel medium; agarose as a representative polysaccharide will be used. The main advantage of the agarose hydrogel is their thermoreversibility and non-reactivity. Therefore the agarose hydrogels can be prepared with defined properties. As the studied samples will be agarose hydrogels with different concentrations in mixture with biopolymers. As the suitable biopolymers; chitosane, alginate, hyaluronate will be used, and for comparison also polystyrenesulfonate will be used. The main emphasis will be taken on time and temperature dependence on mechanical properties determined by macro- and microrheological techniques. Further fluorescence labeling hydrogels samples will be studied and the ability of probes penetrated into the hydrogels.

Keywords: Microrheology, hydrogels, rheology, polyelectrolytes
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