POLYCATION-SURFACTANT INTERACTIONS AND THE FORMATION OF HYDROGELS WITH INTERNAL NANOSTRUCTURE

1 SZABOVÁ Jana
Co-authors:
1 JARÁBKOVÁ Sabína 1 MRAVEC Filip 1 PEKAŘ Miloslav
Institution:
1 Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic, EU
Conference:
9th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 18th - 20th 2017
Proceedings:
Proceedings 9th International Conference on Nanomaterials - Research & Application
Pages:
593-597
ISBN:
978-80-87294-81-9
ISSN:
2694-930X
Published:
8th March 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
13 views / 4 downloads
Abstract

Oppositely charged polyelectrolytes and surfactants can form under specific conditions hydrogels containing micelle-like nanostructures. Due to its hydrophobic core, these structures are capable of solubilizing hydrophobic substances within hydrophilic soft solid matrix. Such hybrid materials can be subject of interest for medical applications. In this study, interactions between cationic dextran and sodium dodecylsulphate were studied and conditions of gel formation investigated. Using the technique of fluorescence probe, phase behaviour was analysed and region of the gel phase separation detected. Solubilisation of hydrophobic dyes confirmed the formation of micellar domains. The gel formation was affected by ionic strength of gelling solutions.

Keywords: hydrogels, polyelectrolytes, surfactants, micelles, solubilisation
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