ANTIBACTERIAL ACTIVITY OF SILVER NANOPARTICLES REDUCED ON POLYSACHARIDE FILMS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43914412" target="_blank" >RIV/60461373:22310/17:43914412 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

ANTIBACTERIAL ACTIVITY OF SILVER NANOPARTICLES REDUCED ON POLYSACHARIDE FILMS

Popis výsledku v původním jazyce

The present work is focused on preparation of polysaccharide films which were doped with silver nanoparticles for enhancement of antibacterial properties. Silver nanoparticles (AgNPs) were prepared and stabilized by reduction of silver nitrate with chitosan without addition of reducing agents. The presence of AgNPs was studied by X-ray photoelectron spectroscopy. Wettability and water absorption of the films were evaluated. Antibacterial activity of solid films with AgNPs was tested by disc diffusion test on two bacterial strains, Gram-positive (Staphylococcus epidermidis) and Gram-negative (Escherichia coli). Solid films were dissolved and then the solution was observed by the Transmission electron microscopy. Aging of the solutions which were stored in the day light and dark were tested. The presence of AgNPs was confirmed both in the solid films and in the solutions by the above mentioned methods and the films exhibited antibacterial activity against both bacterial strains. The research was aiming on use of these films in medicine as a new type of wound dressing with antibacterial properties. These films could be used as a wound dressing, antimicrobial packaging material or as a long-term storage of AgNPs for various applications.

Název v anglickém jazyce

ANTIBACTERIAL ACTIVITY OF SILVER NANOPARTICLES REDUCED ON POLYSACHARIDE FILMS

Popis výsledku anglicky

The present work is focused on preparation of polysaccharide films which were doped with silver nanoparticles for enhancement of antibacterial properties. Silver nanoparticles (AgNPs) were prepared and stabilized by reduction of silver nitrate with chitosan without addition of reducing agents. The presence of AgNPs was studied by X-ray photoelectron spectroscopy. Wettability and water absorption of the films were evaluated. Antibacterial activity of solid films with AgNPs was tested by disc diffusion test on two bacterial strains, Gram-positive (Staphylococcus epidermidis) and Gram-negative (Escherichia coli). Solid films were dissolved and then the solution was observed by the Transmission electron microscopy. Aging of the solutions which were stored in the day light and dark were tested. The presence of AgNPs was confirmed both in the solid films and in the solutions by the above mentioned methods and the films exhibited antibacterial activity against both bacterial strains. The research was aiming on use of these films in medicine as a new type of wound dressing with antibacterial properties. These films could be used as a wound dressing, antimicrobial packaging material or as a long-term storage of AgNPs for various applications.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

8th International Conference on Nanomaterials - Research and Application (NANOCON)

ISBN

978-80-87294-71-0

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

566-571

Název nakladatele

Tanger s.r.o.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

19. 10. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000410656100099