Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 455, Issue -, Pages 117-124Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2015.05.049
Keywords
Rice husk; Porous carbon; High specific surface area; Silver nanoparticles; Antibacterial activity
Categories
Funding
- 863 Program [2013AA06A209]
- National Natural Science Foundation of China [41401564, 21401028]
- Guangdong Science and Technology Plan Program [2012A03070003, 2014A030313706]
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In this paper, we chose rice husk as raw material and synthesized successfully porous carbon loaded with silver nanoparticles (RH-Ag) composites by simple and cost-effective method. The as-prepared RH-Ag composites have a BET-specific surface area of 1996 m(2) g(-1) and result in strong capacity of bacteria adsorption. The result of antibacterial study indicated that the RH-Ag system displayed antibacterial activity that was two times better than pure Ag NPs. Our study demonstrates that the antibacterial activity of RH-Ag composites may be attributed to their strong adsorption ability with bacteria and result in the disorganization of the bacterial membrane ultrastructure. In addition, RH-Ag system was found to be durative slow-releasing of silver ions and biocompatible for human skin keratinocytes cells. In terms of these advantages, the RH-Ag composites have potential application in antibacterial infections and therapy. (C) 2015 Elsevier Inc. All rights reserved.
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