Synthesis, fabrication and antibacterial properties of a plasma modified electrospun membrane consisting of gum Kondagogu, dodecenyl succinic anhydride and poly (vinyl alcohol)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F15%3A00001495" target="_blank" >RIV/46747885:24620/15:00001495 - isvavai.cz</a>

Výsledek na webu

<a href="https://api.elsevier.com/content/article/eid/1-s2.0-S0257897215000699" target="_blank" >https://api.elsevier.com/content/article/eid/1-s2.0-S0257897215000699</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfcoat.2015.01.035" target="_blank" >10.1016/j.surfcoat.2015.01.035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, fabrication and antibacterial properties of a plasma modified electrospun membrane consisting of gum Kondagogu, dodecenyl succinic anhydride and poly (vinyl alcohol)

Popis výsledku v původním jazyce

The present study explores the synthesis of dodecenyl succinic anhydride (DDSA) modified deacetylated gum Kondagogu (DGK) in an aqueous phase and its characterization. The fabrication of nanofibre membranes (NFM) was provided using a mixture of polyvinyl alcohol (PVA, 10 wt.%) and DDSA/DGK (10 wt.%) by the electrospinning method. The electrospun PVA/DDSA/DGK nanofibre membrane was cross-linked by heating at 130 °C and later by oxygen plasma treatment. The morphology and characterization of the cross-linked untreated nanofibre (U-NFM) and plasma treated (P-NFM) membranes were investigated by water contact angle measurements; scanning electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The plasma treatment resulted in reduced fibre diameter, increased surface roughness, and enhanced hydrophilicity and created additional oxygen rich functionalities such as carbonyl, carboxyl and hydroxyl groups. The anti-microbial activities of the P-NFM and U-NFM were then investigated against Gram-negative Escherichia coli and Pseudomonas aeruginosa, and Gram-positive Staphylococcus aureus. It was found that plasma modification enhances the antibacterial properties of the membrane in comparison to the unmodified sample. The inhibition of different bacteria on P-NFM was found to be higher compared to U-NFM and decreases as follows: S. aureus > E. coli > P. aeruginosa. This study suggests that plasma modified electrospun membranes could be used as antimicrobial membranes in food, water and environmental applications

Název v anglickém jazyce

Synthesis, fabrication and antibacterial properties of a plasma modified electrospun membrane consisting of gum Kondagogu, dodecenyl succinic anhydride and poly (vinyl alcohol)

Popis výsledku anglicky

The present study explores the synthesis of dodecenyl succinic anhydride (DDSA) modified deacetylated gum Kondagogu (DGK) in an aqueous phase and its characterization. The fabrication of nanofibre membranes (NFM) was provided using a mixture of polyvinyl alcohol (PVA, 10 wt.%) and DDSA/DGK (10 wt.%) by the electrospinning method. The electrospun PVA/DDSA/DGK nanofibre membrane was cross-linked by heating at 130 °C and later by oxygen plasma treatment. The morphology and characterization of the cross-linked untreated nanofibre (U-NFM) and plasma treated (P-NFM) membranes were investigated by water contact angle measurements; scanning electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The plasma treatment resulted in reduced fibre diameter, increased surface roughness, and enhanced hydrophilicity and created additional oxygen rich functionalities such as carbonyl, carboxyl and hydroxyl groups. The anti-microbial activities of the P-NFM and U-NFM were then investigated against Gram-negative Escherichia coli and Pseudomonas aeruginosa, and Gram-positive Staphylococcus aureus. It was found that plasma modification enhances the antibacterial properties of the membrane in comparison to the unmodified sample. The inhibition of different bacteria on P-NFM was found to be higher compared to U-NFM and decreases as follows: S. aureus > E. coli > P. aeruginosa. This study suggests that plasma modified electrospun membranes could be used as antimicrobial membranes in food, water and environmental applications

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

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

2015

Kód důvěrnosti údajů

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

Název periodika

Surface and Coatings Technology

ISSN

0257-8972

e-ISSN

—

Svazek periodika

271

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

7

Strana od-do

32-38

Kód UT WoS článku

000355349800008

EID výsledku v databázi Scopus

2-s2.0-84928583418