Grafting of silver nanospheres and nanoplates onto plasma activated PET: Effect of nanoparticle shape on antibacterial activity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924528" target="_blank" >RIV/60461373:22310/22:43924528 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/22:43924528 RIV/60461373:22340/22:43924528 RIV/44555601:13440/22:43897171

Výsledek na webu

<a href="https://doi.org/10.1016/j.vacuum.2022.111268" target="_blank" >https://doi.org/10.1016/j.vacuum.2022.111268</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.vacuum.2022.111268" target="_blank" >10.1016/j.vacuum.2022.111268</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Grafting of silver nanospheres and nanoplates onto plasma activated PET: Effect of nanoparticle shape on antibacterial activity

Popis výsledku v původním jazyce

Antibacterial surfaces are a possible way to prevent bacterial infection. This study aim was to prepare antibacterial surface by grafting silver nanoparticles (Ag NPs) onto plasma activated polyethylene terephthalate (PET) surface via biphenyl-4,4ˈ-dithiol (BPD). To take into account the shape factor, which may significantly influence Ag NPs antibacterial properties, two different shape were used, spherical (Ag0) and triangular (Ag3). Ag NPs were characterized using UV–Vis spectroscopy, transmission electron microscopy (TEM) and further by high resolution transmission electron microscopy (HRTEM). Average dimensions of NPs determined by TEM was 21.0 nm for Ag0 and (20.5 x 5.5) nm for Ag3. By HRTEM analysis was shape of Ag0 resolved as decahedron and Ag3 as triangular nanoplates. Success of BPD and Ag NPs grafting onto PET was proved by X-ray photoelectron and energy dispersive X-ray spectroscopy. Antibacterial tests versus E. coli and S. epidermidis were examined on the prepared substrates. Even though the higher amount of Ag was grafted on PET surface with Ag0, in case of S. epidermidis, sample with Ag3 had slightly better antibacterial activity. E. coli, on the other hand, was not affected significantly by the prepared substrates, probably due to low concentration of grafted Ag onto surface. © 2022 Elsevier Ltd

Název v anglickém jazyce

Grafting of silver nanospheres and nanoplates onto plasma activated PET: Effect of nanoparticle shape on antibacterial activity

Popis výsledku anglicky

Antibacterial surfaces are a possible way to prevent bacterial infection. This study aim was to prepare antibacterial surface by grafting silver nanoparticles (Ag NPs) onto plasma activated polyethylene terephthalate (PET) surface via biphenyl-4,4ˈ-dithiol (BPD). To take into account the shape factor, which may significantly influence Ag NPs antibacterial properties, two different shape were used, spherical (Ag0) and triangular (Ag3). Ag NPs were characterized using UV–Vis spectroscopy, transmission electron microscopy (TEM) and further by high resolution transmission electron microscopy (HRTEM). Average dimensions of NPs determined by TEM was 21.0 nm for Ag0 and (20.5 x 5.5) nm for Ag3. By HRTEM analysis was shape of Ag0 resolved as decahedron and Ag3 as triangular nanoplates. Success of BPD and Ag NPs grafting onto PET was proved by X-ray photoelectron and energy dispersive X-ray spectroscopy. Antibacterial tests versus E. coli and S. epidermidis were examined on the prepared substrates. Even though the higher amount of Ag was grafted on PET surface with Ag0, in case of S. epidermidis, sample with Ag3 had slightly better antibacterial activity. E. coli, on the other hand, was not affected significantly by the prepared substrates, probably due to low concentration of grafted Ag onto surface. © 2022 Elsevier Ltd

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

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

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

VACUUM

ISSN

0042-207X

e-ISSN

—

Svazek periodika

203

Číslo periodika v rámci svazku

SEP 2022

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

"111268/1"-12

Kód UT WoS článku

000818789200003

EID výsledku v databázi Scopus

2-s2.0-85133719027