Nanocomposite of polystyrene foil grafted with metallaboranes for antimicrobial activity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F18%3A43893740" target="_blank" >RIV/44555601:13440/18:43893740 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388980:_____/18:00486864 RIV/60461373:22310/18:43916799

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/738F29161DF248E61BAD6E354C407582E0B22B31FA55A7E7CB0CC09B0EFA7293EA0D9B11D8C6DDD3E10C3C8190790FAB" target="_blank" >https://reader.elsevier.com/reader/sd/738F29161DF248E61BAD6E354C407582E0B22B31FA55A7E7CB0CC09B0EFA7293EA0D9B11D8C6DDD3E10C3C8190790FAB</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2018.01.235" target="_blank" >10.1016/j.apsusc.2018.01.235</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanocomposite of polystyrene foil grafted with metallaboranes for antimicrobial activity

Popis výsledku v původním jazyce

The surface of polystyrene foil (PS) was chemically modified. Firstly, the surface was pre-treated with Piranha solution. The activated surface was grafted by selected amino-compounds (cysteamine, ethylenediamine or chitosan) and/or subsequently grafted with five members of inorganic metallaboranes. Selected surface properties were studied by using various methods in order to indicate significant changes before and after individual modification steps of polymer foil. Elemental composition of surface was conducted by using X-ray photoelectron spectroscopy, chemistry and polarity by infrared spectroscopy and by electrokinetic analysis, wettability by goniometry, surface morphology by atomic force microscopy. Antimicrobial tests were performed on individual samples in order to confirm antimicrobial impact. Our results show slight antibacterial activity of PS modified with SK5 for Escherichia coli in comparison with the rest of the tested borane. On the other hand molecules of all tested metallaboranes could easier pierce through bacterial cell of Staphylococcus epidermidis due to absence of outer membrane (phospholipid bilayer). Some borane grafted on PS surface embodies the strong activity for Staphylococcus epidermidis and also for Desmodesmus quadricauda growth inhibition

Název v anglickém jazyce

Nanocomposite of polystyrene foil grafted with metallaboranes for antimicrobial activity

Popis výsledku anglicky

The surface of polystyrene foil (PS) was chemically modified. Firstly, the surface was pre-treated with Piranha solution. The activated surface was grafted by selected amino-compounds (cysteamine, ethylenediamine or chitosan) and/or subsequently grafted with five members of inorganic metallaboranes. Selected surface properties were studied by using various methods in order to indicate significant changes before and after individual modification steps of polymer foil. Elemental composition of surface was conducted by using X-ray photoelectron spectroscopy, chemistry and polarity by infrared spectroscopy and by electrokinetic analysis, wettability by goniometry, surface morphology by atomic force microscopy. Antimicrobial tests were performed on individual samples in order to confirm antimicrobial impact. Our results show slight antibacterial activity of PS modified with SK5 for Escherichia coli in comparison with the rest of the tested borane. On the other hand molecules of all tested metallaboranes could easier pierce through bacterial cell of Staphylococcus epidermidis due to absence of outer membrane (phospholipid bilayer). Some borane grafted on PS surface embodies the strong activity for Staphylococcus epidermidis and also for Desmodesmus quadricauda growth inhibition

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

2018

Kód důvěrnosti údajů

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

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

441

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

120-129

Kód UT WoS článku

000427816400015

EID výsledku v databázi Scopus

2-s2.0-85041419501