期刊
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
卷 38, 期 6, 页码 502-509出版社
ELSEVIER
DOI: 10.1016/j.ijantimicag.2011.07.009
关键词
Silver; alpha-Lactalbumin; Cysteine; Toxicity; Antimicrobial agent
资金
- Maryland NanoCenter (University of Maryland, College Park, MD)
- US Department of Agriculture (USDA)
The current use of silver is limited to certain medical applications owing to two major toxicity concerns, namely low haemocompatibility and silver release-induced skin discoloration, both of which have been attributed to the interaction between silver and blood cysteine. To address these challenges, in this study silver/protein nanocomposites were prepared using alpha-lactalbumin (ALA), a high-cysteine protein. The effect of the cysteine redox state of ALA on physicochemical characteristics was evaluated, and the nanocomposites were formed by Ag-S or Ag-N coordination bonds and electrostatic attractions. The optimum balance between antimicrobial efficacy and toxicity was achieved by treating freshly prepared silver and reduced ALA (ALAred) nanocomposite with ultraviolet radiation, which resulted in a dramatic reduction in toxicity and maintenance of antimicrobial activity. We anticipate that these promising results may have a great impact on broadening the clinical application of silver-based antimicrobial agents. (C) 2011 Elsevier B. V. and the International Society of Chemotherapy. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据