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Anti-bacterial activity of tetragonal and cross-pillar-shaped polyester/TiO2 filaments with photo-deposited silver and platinum nanoparticles

Title
Anti-bacterial activity of tetragonal and cross-pillar-shaped polyester/TiO2 filaments with photo-deposited silver and platinum nanoparticles
Authors
Hwang, Sung-HoLim, Sang KyooHong, Seong HuiKim, SoonhyunChoi, Won MiHan, Jae SungLee, Seung Hwan
DGIST Authors
Hwang, Sung-HoLim, Sang KyooKim, Soonhyun
Issue Date
2016-07
Citation
Textile Research Journal, 86(12), 1231-1240
Type
Article
Article Type
Article
Keywords
Anti-Bacterial ActivityAnti-Microbial ActivityAnti-Microbial EffectsAnti-Microbial PropertiesBacteriaDepositionMelt SpinningMelt Spinning ProcessMetal IonsMetal NanoparticleMetal NanoparticlesMetalsMicroorganismsNanoparticleNanoparticlesPhoto-Catalytic DepositionPlatinumPlatinum Nano-ParticlesPolyester FilamentPrecious MetalsSilverSolutionsSpinning (Fibers)TiO2Titanium Dioxide
ISSN
0040-5175
Abstract
In this work, we tried to enhance anti-bacterial activity of fabric fibers by controlling the shape of filaments, such as tetragonal and cross-pillar, which led to an increase of the surface portion of filaments. With this purpose, silver and platinum nanoparticles were immobilized on the surface of TiO2 nanoparticles within tetragonal and cross-pillar-shaped polyester (PET) filaments. The process consists of preparing 4 wt.% of TiO2 compounding PET chips, melt-spinning of them and photo catalytic deposition of nanoparticles in sequence. To obtain tetragonal and cross-pillar-shaped morphologies of filaments, two different nozzles were used in the melt-spinning process. For the photo-deposition of metal nanoparticles, adsorption of the metal ions on the surface of the filaments was performed by immersing them in AgNO3 and H2PtCl6 aqueous solutions, respectively, with simultaneous addition of methanol as a sacrificial agent. Photo-deposition was then carried out under ultraviolet light with an irradiation time of 300 s. The structural and antimicrobial properties of the tetragonal and cross-pillar-shaped PET/TiO2 filaments with noble metal loaded were systematically characterized. Ag and Pt metal photo-deposited filaments showed excellent antimicrobial effect against the two types of bacteria, Staphylococcus aureus and Klebsiella pneumonia, under the dark condition. © 2015, © The Author(s) 2015.
URI
http://hdl.handle.net/20.500.11750/5097
DOI
10.1177/0040517515609256
Publisher
SAGE Publications Ltd
Related Researcher
Files:
There are no files associated with this item.
Collection:
Smart Textile Convergence Research Group1. Journal Articles


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