Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 356, Issue 2, Pages 513-518Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2011.01.054
Keywords
Functional coatings; Silver nanoparticles; Surface plasmon resonance; Color; Antibacterial; Wool fiber
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Funding
- National Natural Science Foundation of China (NSFC) [20903043, 20973075, 20773045]
- Research Fund for the Doctoral Program of Higher Education of China [20090061120089]
- 111 project [1306009]
- Deakin Central Research Grant
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Anisotropic silver nanoparticles (NPs) were successfully employed to color the wool fabrics in this study. The modified wool fabrics exhibited brilliant colors due to the localized surface plasmon resonance (LSPR) properties of silver NPs. The colors of wool fabrics altered with the morphologies of silver NPs. These modified wool fabrics were characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results indicated that anisotropic silver NPs were effectively assembled on the surface of wool fibers when the solution pH and temperature was about 4 and 40 C, respectively. This assembling of silver NPs on the wool fibers was realized by the electrostatic interaction between wool fibers and silver NPs. This technique was also applied to gold NPs. The fabrics treated with anisotropic silver NPs showed high antibacterial activity against the bacteria of Escherichia coli. This study opens a new approach to color and functionalize conventional textile materials. Crown Copyright (C) 2011 Published by Elsevier Inc. All rights reserved.
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