Toxicity Evaluation of Quantum Dots to Microorganisms A toxicity assesment of CdTe/ZnS core/shell quantum dots with Escherichia coli

摘要：

Quantum dots (QDs) nanoparticles are increasingly being used for biomedical applications. Most QDs consist of heavy metal which may be potentially toxic to biological organisms. In this study, CdTe/ZnS core/shell QDs were evaluated for their harmful effects on Escherichia coli, which served as model for potential impact to microorganisms and microbial cell toxicity. Organic soluble CdTe and CdTe/ZnS QDs were encapsulated with a monolayer of polymer to make them water soluble and biocompatible. Different concentrations of QDs were incubated with E. coli to determine the effect on the number of colony forming. The result indicated that CdTe/ZnS QDs have better biocompatibility and less toxicity than the CdTe.

作者: Hengyi Xu Feng Xu Jianwen Zhang Hua Wei Zoraida P.Aguilar Huaipeng Su John D.Dixon Y.Andrew Wang

作者单位: State Key Laboratory of Food Science and Technology JX OAI Joint Research Institute, Nanchang Univer Ocean NanoTech, LLC Springdale AR72764, USA

会议类型: 国际会议

会议名称: The 4th International Conference on Bioinformatics and Biomedical Engineering(第四届IEEE生物信息与生物医学工程国际会议 iCBBE 2010)

会议地点: 成都

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-18（万方平台首次上网日期，不代表论文的发表时间）