Antibacterial activity of photocatalytic electrospun titania nanofiber mats and solution-blown soy protein nanofiber mats decorated with silver nanoparticles
- Authors
- Zhang, Yiyun; Lee, Min Wook; An, Seongpil; Sinha-Ray, Suman; Khansari, Shahrzad; Joshi, Bhavana; Hong, Seungkwan; Hong, Joo-Hyun; Kim, Jae-Jin; Pourdeyhimi, B.; Yoon, Sam S.; Yarin, Alexander L.
- Issue Date
- 5-4월-2013
- Publisher
- ELSEVIER
- Keywords
- Antibacterial; Electrospinning; Titania; Soy protein; Solution blowing; Silver nanoparticles
- Citation
- CATALYSIS COMMUNICATIONS, v.34, pp.35 - 40
- Indexed
- SCIE
SCOPUS
- Journal Title
- CATALYSIS COMMUNICATIONS
- Volume
- 34
- Start Page
- 35
- End Page
- 40
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/103515
- DOI
- 10.1016/j.catcom.2013.01.002
- ISSN
- 1566-7367
- Abstract
- Highly porous photocatalytic titania nanoparticle decorated nanofibers were fabricated by electrospinning nylon 6 nanofibers onto flexible substrates and electrospraying TiO2 nanoparticles onto them. Film morphology and crystalline phase were measured by SEM and XRD. The titania films showed excellent photokilling capabilities against E. coli colonies and photodegradation of methylene blue under moderately weak UV exposure (<= 0.6 mW/cm(2) on a 15-cm illumination distance). In addition, solution blowing was used to form soy protein-containing nanofibers which were decorated with silver nanoparticles. These nanofibers demonstrated significant antibacterial activity against E. coli colonies without exposure to UV light. The nano-textured materials developed in this work can find economically viable applications in water purification technology and in biotechnology. The two methods of nanofiber production employed in this work differ in their rate with electrospinning being much slower than the solution blowing. The electrospun nanofiber mats are denser than the solution-blown ones due to a smaller inter-fiber pore size. The antibacterial activity of the two materials produced (electrospun titania nanoparticle decorated nanofibers and silver-nanoparticle-decorated solution-blown nanofibers) are complimentary, as the materials can be effective with and without UV light, respectively. (C) 2013 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
- College of Life Sciences and Biotechnology > Division of Environmental Science and Ecological Engineering > 1. Journal Articles
- College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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