Electrospun antimicrobial PVDF-DTAB nanofibrous membrane for air filtration; Effect of DTAB on structure, morphology, adhesion and antibacterial properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F18%3A43893060" target="_blank" >RIV/44555601:13440/18:43893060 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/44555601:13520/18:43893060

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/mame.201700415/full" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/mame.201700415/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/mame.201700415" target="_blank" >10.1002/mame.201700415</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrospun antimicrobial PVDF-DTAB nanofibrous membrane for air filtration; Effect of DTAB on structure, morphology, adhesion and antibacterial properties

Popis výsledku v původním jazyce

Antimicrobial polyvinylidene fluoride (PVDF) membrane modified by dodecyltrimethyl ammonium bromide (DTAB) has been electrospun using simple one-step technology, where the modifying agent DTAB is dissolved in spinning solution. X-ray photoelectron spectroscopy and electrokinetic analysis confirm reliably the presence of DTAB on the nanofibers surfaces; electrokinetic analysis shows the changes of zeta potential due to modification by DTAB. X-ray diffraction shows that electrospinning converts the part of ? phase (ALMOST EQUAL TO40%) present in PVDF powder into ? phase with all trans (TTT) zigzag chains conformation in PVDF electrospun membrane. Surface modification does not affect the phase composition of PVDF nanofibers, just only leads to lower crystallinity (smaller size of crystallites) in PVDF nanofibers. DTAB causes the curling of fibers and their aggregation, what completely changed the membrane structure. DTAB-modified membrane exhibits antibacterial properties against Staphylococcus aureus subsp. Aureus. Concentration of 0.5 wt% DTAB in spinning solution causes partial inhibition of bacterial growth only, while 1.0 wt% concentration leads to complete inhibition.

Název v anglickém jazyce

Electrospun antimicrobial PVDF-DTAB nanofibrous membrane for air filtration; Effect of DTAB on structure, morphology, adhesion and antibacterial properties

Popis výsledku anglicky

Antimicrobial polyvinylidene fluoride (PVDF) membrane modified by dodecyltrimethyl ammonium bromide (DTAB) has been electrospun using simple one-step technology, where the modifying agent DTAB is dissolved in spinning solution. X-ray photoelectron spectroscopy and electrokinetic analysis confirm reliably the presence of DTAB on the nanofibers surfaces; electrokinetic analysis shows the changes of zeta potential due to modification by DTAB. X-ray diffraction shows that electrospinning converts the part of ? phase (ALMOST EQUAL TO40%) present in PVDF powder into ? phase with all trans (TTT) zigzag chains conformation in PVDF electrospun membrane. Surface modification does not affect the phase composition of PVDF nanofibers, just only leads to lower crystallinity (smaller size of crystallites) in PVDF nanofibers. DTAB causes the curling of fibers and their aggregation, what completely changed the membrane structure. DTAB-modified membrane exhibits antibacterial properties against Staphylococcus aureus subsp. Aureus. Concentration of 0.5 wt% DTAB in spinning solution causes partial inhibition of bacterial growth only, while 1.0 wt% concentration leads to complete inhibition.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LM2015073" target="_blank" >LM2015073: Nanomateriály a nanotechnologie pro ochranu životního prostředí a udržitelnou budoucnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Macromolecular Materials and Engineering

ISSN

1438-7492

e-ISSN

—

Svazek periodika

303

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

"nestrankovano"

Kód UT WoS článku

000427483300002

EID výsledku v databázi Scopus

2-s2.0-85040690780