Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorChonlada Theerakarunwongen_US
dc.contributor.authorSomruthai Tunmaen_US
dc.contributor.authorDheerawan Boonyawanen_US
dc.description.abstract© 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.en_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectMaterials Scienceen_US
dc.subjectPhysics and Astronomyen_US
dc.titlePlasma assisted immobilization of TiO<inf>2</inf>nanoparticles onto PLA surface to promote the antimicrobial activityen_US
article.title.sourcetitleChiang Mai Journal of Scienceen_US
article.volume41en_US Sawan Rajabhat Universityen_US Mai Universityen_US
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.

Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.