PREPARATION AND CHARACTERIZATION OF TRICOLOR CdSe-TAGGED MICROBEADS FOR BIO-DETECTION

摘要：

Tricolor microbeads for biological assay have been prepared by embedding three quantum dots (cadmium selenide semiconductor nanocrystals) of different size into carboxyl-functionalized polystyrene (PS-COOH) microbeads. These efforts can render CdSe nanocrystals water-solubility, chemical stability and good photostability. The results indicate that QDs-tagged microbeads are highly uniform, reproducible and strong in fluorescence emission. Based on the properties it possesses, QDs-tagged microbead may have great potential for bio-detection.

关键词： CdSe quantum dots (QDs) polystyrene bio-detection photostability fluorescence

作者: Jin Chang Bingbo Zhang Dena Li Guiping Ma Weicai Wang Qi Zhang

作者单位: Institute of Nanobiotechnology, School of Materials Science & Engineering, Tianjin University,Tianji Center of Technology, Beijing Entr-exit Inspection and Quarantine Bureau, Beijing 100029, China

会议类型: 国际会议

会议名称: 2007年微纳系统集成及其商业化应用国际学术会议(2007 International Conference & Exhibition on Integration and Commercialization of Micro and Nano-Systems)

会议地点: 海南三亚

会议语种:英文

在线出版日期: 2007-01-10（万方平台首次上网日期，不代表论文的发表时间）