| 查看: 1116 | 回复: 5 | |||
| 【奖励】 本帖被评价3次，作者zbbqds增加金币 1.5 个 | |||
| 当前主题已经存档。 | |||
[资源]
【资源】最新提高二氧化硅改性量子点荧光效率的文献
|
|||
|
A novel method to enhance quantum yield of silica-coated quantum dots for biodetection Bingbo Zhang, Xiaoqun Gong, Lijuan Hao, Jing Cheng, Yan Han and Jin Chang Institute of Nanobiotechnology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, People's Republic of China E-mail: jinchang@tju.edu.cn Abstract. In this paper, based on selecting the appropriate type of quantum dots (QDs), a novel method is developed to enhance the quantum yield (QY) of silica-coated QD nanoparticles (SQDNPs). The effect of varying types of QDs on the QY after silica encapsulation is systematically studied. The results show that QDs with appropriate structure and composition of shells can much better retain the initial QY after silanization. The seven-layered shell/core QDs with QY of 47.8% nearly completely retain the original QY and is the best type among six types of QDs for silica modification. In the aspect of shell composition, the CdS plays an important role for QY retention since the lattice mismatch between CdSe and CdS is lower than that of CdSe and ZnS. After the appropriate type of QDs is chosen for silica coating, the highly fluorescent SQDNPs are chemically modified with amine, thiol and carboxyl groups, and then labeled by antibodies for particle-based immunofluorescence assay. The results indicate that the SQDNPs–antibody bioconjugates are alternative fluorescent probes useful for biodetection. Print publication: Issue 46 (19 November 2008) http://www.iop.org/EJ/abstract/0957-4484/19/46/465604 [ Last edited by yusen_1982 on 2008-12-4 at 14:07 ] |
回复此楼» 猜你喜欢
有外导意向招收2026年CSC联培博士吗
已经有7人回复
-
南京林业大学国家工程中心李海涛教授课题组招收研究生
已经有11人回复
-
建筑环境与结构工程论文润色/翻译怎么收费?
已经有179人回复
-
拟解决的关键科学问题还要不要写
已经有20人回复
-
英国萨里大学招4个全奖博士2026土木，AI，地理科学，环境科学等方向
已经有0人回复
-
[导师招生]全奖博士生招生—香港都会大学
已经有0人回复
-
一志愿中石油（华东），0854电子信息专硕392分，求调剂
已经有0人回复
-
西京学院-土木水利2026研究生-结构抗震与智能检测
已经有0人回复
-
西京学院-土木水利2026研究生-高性能结构与智能材料
已经有0人回复
2楼2008-10-26 17:39:41
3楼2008-10-29 11:00:07
★
yusen_1982(金币+1,VIP+0):谢谢解释，欢迎常来生物材料版
yusen_1982(金币+1,VIP+0):谢谢解释，欢迎常来生物材料版
|
我替楼主说吧，文章发在了 Nanotechnology 上，另外建议以后发文把链接贴上。 http://www.iop.org/EJ/abstract/0957-4484/19/46/465604 |
4楼2008-10-29 12:10:02
5楼2008-12-04 12:55:36
6楼2008-12-04 14:56:44
