Antimicrobial PVDF nanofiber composites with the ZnO - vermiculite - chlorhexidine based nanoparticles and their tensile properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F21%3A10247980" target="_blank" >RIV/61989100:27240/21:10247980 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/21:10247980 RIV/61989100:27640/21:10247980 RIV/70883521:28610/21:63545158

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0142941821003123" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0142941821003123</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymertesting.2021.107367" target="_blank" >10.1016/j.polymertesting.2021.107367</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Antimicrobial PVDF nanofiber composites with the ZnO - vermiculite - chlorhexidine based nanoparticles and their tensile properties

Popis výsledku v původním jazyce

The PVDF nanofiber materials with antimicrobial zinc oxide (ZnO), zinc oxide/vermiculite (ZnO/V), zinc oxide/vermiculite-chlorhexidine (ZnO/V_CH) and vermiculite-chlorhexidine (V_CH) nanofillers were electrospun via one-step electrospinning process. The PVDF nanofiber diameters and their orientation were investigated using scanning electron microscope (SEM). The ZnO/V_CH and V/CH nanofillers with positive Zeta - potential values were incorporated into PVDF nanofibers with an average diameter of 108 nm for PVDF_ZnO/V_CH and 100 nm for PVDF_V_CH samples. In contrast, ZnO and ZnO/V nanofillers with negative Zeta - potential values reacted intensively with PVDF polymer. The hydrophobic character was demonstrated by water contact angle from 100o. The chemical interactions were evaluated by the Fourier transform infrared spectroscopy (FTIR). The presence of the -phase in the original PVDF and the small traces of the alfa-phase in PVD_ZnO and PVDF_ZnO/V samples was confirmed. In the PVDF_ZnO/V_CH and PVDF_V/CH samples where the specific interaction of PVDF chains with CH a rapid decrease in the beta-phase fraction was evaluated. The mechanical properties based on the Young&apos;s modulus (E) and tensile strength (Rm) values were evaluated from the tensil test curves. Antimicrobial activity (longer than 48 hours) against S. aureus and E. coli for PVDF_ZnO/V_CH and PVDF_V/CH samples was obtained.

Název v anglickém jazyce

Antimicrobial PVDF nanofiber composites with the ZnO - vermiculite - chlorhexidine based nanoparticles and their tensile properties

Popis výsledku anglicky

The PVDF nanofiber materials with antimicrobial zinc oxide (ZnO), zinc oxide/vermiculite (ZnO/V), zinc oxide/vermiculite-chlorhexidine (ZnO/V_CH) and vermiculite-chlorhexidine (V_CH) nanofillers were electrospun via one-step electrospinning process. The PVDF nanofiber diameters and their orientation were investigated using scanning electron microscope (SEM). The ZnO/V_CH and V/CH nanofillers with positive Zeta - potential values were incorporated into PVDF nanofibers with an average diameter of 108 nm for PVDF_ZnO/V_CH and 100 nm for PVDF_V_CH samples. In contrast, ZnO and ZnO/V nanofillers with negative Zeta - potential values reacted intensively with PVDF polymer. The hydrophobic character was demonstrated by water contact angle from 100o. The chemical interactions were evaluated by the Fourier transform infrared spectroscopy (FTIR). The presence of the -phase in the original PVDF and the small traces of the alfa-phase in PVD_ZnO and PVDF_ZnO/V samples was confirmed. In the PVDF_ZnO/V_CH and PVDF_V/CH samples where the specific interaction of PVDF chains with CH a rapid decrease in the beta-phase fraction was evaluated. The mechanical properties based on the Young&apos;s modulus (E) and tensile strength (Rm) values were evaluated from the tensil test curves. Antimicrobial activity (longer than 48 hours) against S. aureus and E. coli for PVDF_ZnO/V_CH and PVDF_V/CH samples was obtained.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Polymer testing

ISSN

0142-9418

e-ISSN

—

Svazek periodika

103

Číslo periodika v rámci svazku

November 2021

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

107367

Kód UT WoS článku

000708914300005

EID výsledku v databázi Scopus

2-s2.0-85116715685