Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924531" target="_blank" >RIV/60461373:22310/22:43924531 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22330/22:43924531

Result on the web

<a href="https://doi.org/10.3390/nano12152658" target="_blank" >https://doi.org/10.3390/nano12152658</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano12152658" target="_blank" >10.3390/nano12152658</a>

Result language

angličtina

Original language name

Antibacterial Properties of Silver Nanoclusters with Carbon Support on Flexible Polymer

Original language description

Here, we aimed at the preparation of an antibacterial surface on a flexible polydimethylsiloxane substrate. The polydimethylsiloxane surface was sputtered with silver, deposited with carbon, heat treated and exposed to excimer laser, and the combinations of these steps were studied. Our main aim was to find the combination of techniques applicable both against Gram-positive and Gram-negative bacteria. The surface morphology of the structures was determined by atomic force microscopy and scanning electron microscopy. Changes in surface chemistry were conducted by application of X-ray photoelectron spectroscopy and energy dispersive spectroscopy. The changes in surface wettability were characterized by surface free energy determination. The heat treatment was also applied to selected samples to study the influence of the process on layer stability and formation of PDMS-Ag or PDMS-C-Ag composite layer. Plasmon resonance effect was determined for as-sputtered and heat-treated Ag on polydimethylsiloxane. The heating of such structures may induce formation of a pattern with a surface plasmon resonance effect, which may also significantly affect the antibacterial activity. We have implemented sputtering of the carbon base layer in combination with excimer laser exposure of PDMS/C/Ag to modify its properties. We have confirmed that deposition of primary carbon layer on PDMS, followed by sputtering of silver combined with subsequent heat treatment and activation of such surface with excimer laser, led to the formation of a surface with strong antibacterial properties against two bacterial strains of S. epidermidis and E. coli. © 2022 by the authors.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA20-02120S" target="_blank" >GA20-02120S: Q-carbon, preparation of unique forms of carbon nanostructures</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Nanomaterials

ISSN

2079-4991

e-ISSN

2079-4991

Volume of the periodical

12

Issue of the periodical within the volume

15

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

"2658/1"-15

UT code for WoS article

000839878900001

EID of the result in the Scopus database

2-s2.0-85136952118