title: Rice husk based porous carbon loaded with silver nanoparticles by a simple and cost-effective approach and their antibacterial activity.
abstract: 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.
authors.affiliation: Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China.
authors.forename: Jianghu
authors.initials: J
authors.lastname: Cui
authors.affiliation: Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangzhou 510070, China.
authors.forename: Yunhua
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China.
authors.forename: Yonghui
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650, China. Electronic address: cefbli@soil.gd.cn.
authors.forename: Fangbai
authors.initials: F
authors.lastname: Li
mesh_terms: D000327:Adsorption; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000494:pharmacology*; D002244:Carbon / Q000737:chemistry*; D002460:Cell Line; D002462:Cell Membrane / Q000187:drug effects / Q000648:ultrastructure; D002470:Cell Survival / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects* / Q000254:growth & development / Q000648:ultrastructure; D006801:Humans; D015603:Keratinocytes / Q000166:cytology / Q000187:drug effects; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008826:Microbial Sensitivity Tests; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D012275:Oryza / Q000737:chemistry*; D016062:Porosity; D012834:Silver / Q000737:chemistry / Q000494:pharmacology; D014866:Waste Products
chemical_list: D000900:Anti-Bacterial Agents; D014866:Waste Products; D012834:Silver; D002244:Carbon
keywords: Antibacterial activity; High specific surface area; Porous carbon; Rice husk; Silver nanoparticles