Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/14673
Title: Self-cleaning keratins
Authors: Daoud, WA
Leung, SK
Tung, WS
Xin, JH 
Cheuk, K 
Qi, K
Issue Date: 2008
Publisher: American Chemical Society
Source: Chemistry of materials, 2008, v. 20, no. 4, p. 1242-1244 How to cite?
Journal: Chemistry of materials 
Abstract: Self-cleaning keratin fibers were studied by a nanotechnology approach in which anatase nanocrystals of titanium dioxide were formulated applied to the fibers through a near room temperature sol-gel process to maintain their intrinsic properties. The results show that a synthetic formulation of an acidic aqueous colloid of titanium dioxide using hydrochloric acid produces single-phase anatase nanocrystals. The acylation reaction allows for increasing functionality and reactivity toward anatase nanocrystals, which results in enhanced self-cleaning functionality. The modification of fibrous proteins with succinic anhydride introduces additional carboxylic groups by acylation, which allows for enhanced bonding between TiO2 under mild conditions. The chemical modification and anatase coating processes do not employ toxic reagents or solvents and the procedures are carried out under mild conditions favorable for keratinous materials.
URI: http://hdl.handle.net/10397/14673
ISSN: 0897-4756
DOI: 10.1021/cm702661k
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