Silver nanoparticles grafted onto PET: Effect of preparation method on antibacterial activity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918771" target="_blank" >RIV/60461373:22310/19:43918771 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22330/19:43918771 RIV/60461373:22340/19:43918771 RIV/44555601:13440/19:43894944

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1381514819307783?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1381514819307783?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.reactfunctpolym.2019.104376" target="_blank" >10.1016/j.reactfunctpolym.2019.104376</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Silver nanoparticles grafted onto PET: Effect of preparation method on antibacterial activity

Popis výsledku v původním jazyce

Incorporating silver nanoparticles (Ag NPs) into surface structure is one of the way to prepare antibacterial surfaces. This study focuses on preparation of antibacterial polymer surface by grafting polyethylene terephthalate (PET) with Ag NPs differing by method of preparation. Ag NP dispersions were synthesized by chemical (Ag NPCH), electrochemical (Ag NPE) and physical (Ag NPP) methods. They were characterized by transmission electron microscopy and UV-Vis spectroscopy. Ag NPs were grafted onto plasma treated PET using dithiol interlayer because of Ag high affinity to thiol groups. Success of grafting was determined by X-ray photoelectron and energy dispersive X-ray spectroscopies. Atomic force and scanning electron microscopes also showed presence of both thiol and Ag NPE on plasma treated PET. Prepared samples were subjected to antibacterial tests against Escherichia coli and Staphylococcus epidermidis. Ag NPE were the smallest and their amount grafted onto PET surface was the highest. Therefore, PET with Ag NPE would be expected to have the best antibacterial effect. However, the highest antibacterial activity (for both strains) turned out to be on PET grafted with Ag NPP because far greater NP amount was situated more in the volume of grafted layer than on PET surface itself.

Název v anglickém jazyce

Silver nanoparticles grafted onto PET: Effect of preparation method on antibacterial activity

Popis výsledku anglicky

Incorporating silver nanoparticles (Ag NPs) into surface structure is one of the way to prepare antibacterial surfaces. This study focuses on preparation of antibacterial polymer surface by grafting polyethylene terephthalate (PET) with Ag NPs differing by method of preparation. Ag NP dispersions were synthesized by chemical (Ag NPCH), electrochemical (Ag NPE) and physical (Ag NPP) methods. They were characterized by transmission electron microscopy and UV-Vis spectroscopy. Ag NPs were grafted onto plasma treated PET using dithiol interlayer because of Ag high affinity to thiol groups. Success of grafting was determined by X-ray photoelectron and energy dispersive X-ray spectroscopies. Atomic force and scanning electron microscopes also showed presence of both thiol and Ag NPE on plasma treated PET. Prepared samples were subjected to antibacterial tests against Escherichia coli and Staphylococcus epidermidis. Ag NPE were the smallest and their amount grafted onto PET surface was the highest. Therefore, PET with Ag NPE would be expected to have the best antibacterial effect. However, the highest antibacterial activity (for both strains) turned out to be on PET grafted with Ag NPP because far greater NP amount was situated more in the volume of grafted layer than on PET surface itself.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA17-00939S" target="_blank" >GA17-00939S: Příprava a charakterizace tenkých vrstev a nanostruktur se specifickými magnetickými vlastnostmi</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Reactive and Functional Polymers

ISSN

1381-5148

e-ISSN

—

Svazek periodika

145

Číslo periodika v rámci svazku

DEC 2019

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

9

Strana od-do

"104376/1"-9

Kód UT WoS článku

000501660200009

EID výsledku v databázi Scopus

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