Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity

© 2014, Chiang Mai University. All rights reserved. Recently, there has been a trend for the application of antimicrobial and biodegradable materials for development of smart packaging products. Iron (III) ion (Fe3+) doped TiO2 nanoparticles were immobilized onto PLA film surface in order to enhance...

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Main Authors: Chonlada Theerakarunwong, Somruthai Tunma, Dheerawan Boonyawan
Format: Journal
Published: 2018
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84936000093&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/45619
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spelling th-cmuir.6653943832-456192018-01-24T06:13:56Z Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity Chonlada Theerakarunwong Somruthai Tunma Dheerawan Boonyawan © 2014, Chiang Mai University. All rights reserved. Recently, there has been a trend for the application of antimicrobial and biodegradable materials for development of smart packaging products. Iron (III) ion (Fe3+) doped TiO2 nanoparticles were immobilized onto PLA film surface in order to enhance the antimicrobial efficiency. Fe3+ doped TiO2/PLA was prepared by a wet-impregnation method and characterized by XRD and SEM. High-resolution X-ray photoelectron spectroscopy for chemical analysis confirmed the higher presence of TiO2 nanoparticles deposited onto the SiOx plasma treated-PLA surface than the Ar plasma treated-PLA surface and untreated PLA surface, respectively. The plasma process generates active sites on PLA surface and renders strong interaction between NPs and surface, especially in SiOx plasma due to the reactive functional groups such as Si-O or silane groups. Both Ar/PLA/Fe/TiO2 and SiOx/PLA/Fe/ TiO2 showed the higher antibacterial efficiency of Fe3+ doped TiO2 than bared TiO2 owing to Fe ions might be reduced the width of the energy gap of TiO2.Fe3+ dopant created a stronger interaction between TiO2 and the PLA surface compared to bare TiO2 both on Ar and SiOx plasmas. Both Ar/PLA/Fe/TiO2 and SiOx/PLA/Fe/TiO2 showed the higher antibacterial efficiency of Fe3+ doped TiO2 than untreated PLA/Fe/TiO2 due to the higher concentration of nanoparticles attached on PLA surface, which could be influence the strong covalent interaction bonds between modified surface and particles. 2018-01-24T06:13:56Z 2018-01-24T06:13:56Z 2014-01-01 Journal 01252526 2-s2.0-84936000093 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84936000093&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45619
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2014, Chiang Mai University. All rights reserved. Recently, there has been a trend for the application of antimicrobial and biodegradable materials for development of smart packaging products. Iron (III) ion (Fe3+) doped TiO2 nanoparticles were immobilized onto PLA film surface in order to enhance the antimicrobial efficiency. Fe3+ doped TiO2/PLA was prepared by a wet-impregnation method and characterized by XRD and SEM. High-resolution X-ray photoelectron spectroscopy for chemical analysis confirmed the higher presence of TiO2 nanoparticles deposited onto the SiOx plasma treated-PLA surface than the Ar plasma treated-PLA surface and untreated PLA surface, respectively. The plasma process generates active sites on PLA surface and renders strong interaction between NPs and surface, especially in SiOx plasma due to the reactive functional groups such as Si-O or silane groups. Both Ar/PLA/Fe/TiO2 and SiOx/PLA/Fe/ TiO2 showed the higher antibacterial efficiency of Fe3+ doped TiO2 than bared TiO2 owing to Fe ions might be reduced the width of the energy gap of TiO2.Fe3+ dopant created a stronger interaction between TiO2 and the PLA surface compared to bare TiO2 both on Ar and SiOx plasmas. Both Ar/PLA/Fe/TiO2 and SiOx/PLA/Fe/TiO2 showed the higher antibacterial efficiency of Fe3+ doped TiO2 than untreated PLA/Fe/TiO2 due to the higher concentration of nanoparticles attached on PLA surface, which could be influence the strong covalent interaction bonds between modified surface and particles.
format Journal
author Chonlada Theerakarunwong
Somruthai Tunma
Dheerawan Boonyawan
spellingShingle Chonlada Theerakarunwong
Somruthai Tunma
Dheerawan Boonyawan
Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity
author_facet Chonlada Theerakarunwong
Somruthai Tunma
Dheerawan Boonyawan
author_sort Chonlada Theerakarunwong
title Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity
title_short Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity
title_full Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity
title_fullStr Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity
title_full_unstemmed Plasma assisted immobilization of TiO<inf>2</inf> nanoparticles onto PLA surface to promote the antimicrobial activity
title_sort plasma assisted immobilization of tio<inf>2</inf> nanoparticles onto pla surface to promote the antimicrobial activity
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84936000093&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/45619
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