RELEASE OF SILVER NANOPARTICLES FROM POLYSACCHARIDE FILMS BASED ON METHYLCELLULOSE

1 PIŠLOVÁ Markéta
Co-authors:
1 JAČKOVÁ Tereza 1 FAJSTAVR Dominik 1 KOLÁŘOVÁ Kateřina 1 ŠVORČÍK Václav
Institution:
1 Department of Solid State Engineering, University of Chemistry and Technology Prague, Prague, Czech Republic, EU, pislovam@vscht.cz
Conference:
10th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 17th - 19th 2018
Proceedings:
Proceedings 10th International Conference on Nanomaterials - Research & Application
Pages:
517-522
ISBN:
978-80-87294-89-5
ISSN:
2694-930X
Published:
28th February 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

The present work is focused on preparation and characterization polysaccharide films based on methylcellulose. Films were doped with silver nanoparticles (AgNPs). AgNPs were prepared and stabilized by reduction of silver nitrate. Polyethylene glycol and glycerol were used as additives for better material properties of methylcellulose films. Properties of these films were analyzed with a number of analytical techniques. Wettability and water absorption of films were evaluated. Concentration of the AgNPs released into the solution during dissolution was studied by atomic absorption spectroscopy. The presence of AgNPs in solutions and solid films was monitored by the ultraviolet–visible spectroscopy. Solid films were dissolved at different temperatures and release of AgNPs from the film was observed during the dissolution time by the ultraviolet–visible spectroscopy. The presence of AgNPs was confirmed both in the solid films and in the solutions by the above mentioned methods. It was found that additives changed materials properties. Our research was aiming on use of these films in medicine as a new type of wound dressing with antibacterial properties or as a drug delivery system.

Keywords: Polysaccharides films, silver nanoparticles, methylcellulose
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