Antibacterial properties of silver coated regenerated cellulose

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43921282" target="_blank" >RIV/60461373:22310/20:43921282 - isvavai.cz</a>

Výsledek na webu

<a href="https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/mnl.2019.0492" target="_blank" >https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/mnl.2019.0492</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1049/mnl.2019.0492" target="_blank" >10.1049/mnl.2019.0492</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Antibacterial properties of silver coated regenerated cellulose

Popis výsledku v původním jazyce

This work is focused on the study and characterisation of surface properties of regenerated cellulose after plasma modification, which significantly affects its physical and chemical properties such as wettability, surface chemistry, and surface morphology. Depending on the selected parameters, such as the plasma exposure time of the substrate, its aging and the sputtering time with silver, the modified material was studied in different analytical methods. The ablation of the substrate was determined gravimetrically. Changes in surface roughness were detected by atomic force microscopy and chemical changes were studied with X-ray spectroscopy (XPS). Silver nanolayers were sputtered on the activated substrate and the antibacterial properties of these layers were studied. It has been determined the aging period for surface-treated under different exposure time, gravimetric analysis has shown almost linear mass loss with plasma treatment time, the surface roughness slightly decreases with the action of plasma. XPS analysis revealed that the oxygen content increased due to the higher reactivity of the surface of the modified cellulose. Antibacterial tests have shown that the silver layer sputtered on plasma activated regenerated cellulose significantly reduces the colonies of both Escherichia coli and Staphylococcus epidermidis.

Název v anglickém jazyce

Antibacterial properties of silver coated regenerated cellulose

Popis výsledku anglicky

This work is focused on the study and characterisation of surface properties of regenerated cellulose after plasma modification, which significantly affects its physical and chemical properties such as wettability, surface chemistry, and surface morphology. Depending on the selected parameters, such as the plasma exposure time of the substrate, its aging and the sputtering time with silver, the modified material was studied in different analytical methods. The ablation of the substrate was determined gravimetrically. Changes in surface roughness were detected by atomic force microscopy and chemical changes were studied with X-ray spectroscopy (XPS). Silver nanolayers were sputtered on the activated substrate and the antibacterial properties of these layers were studied. It has been determined the aging period for surface-treated under different exposure time, gravimetric analysis has shown almost linear mass loss with plasma treatment time, the surface roughness slightly decreases with the action of plasma. XPS analysis revealed that the oxygen content increased due to the higher reactivity of the surface of the modified cellulose. Antibacterial tests have shown that the silver layer sputtered on plasma activated regenerated cellulose significantly reduces the colonies of both Escherichia coli and Staphylococcus epidermidis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA17-00885S" target="_blank" >GA17-00885S: Nanostrukturované nosiče na bázi celulózy a jejích derivátů s nastavitelnými vlastnostmi pro tkáňové inženýrství</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Micro &amp; Nano Letters

ISSN

1750-0443

e-ISSN

—

Svazek periodika

15

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

161-164

Kód UT WoS článku

000541520300008

EID výsledku v databázi Scopus

2-s2.0-85079497374