Self-illuminating 64Cu-doped CdSe/ZnS nanocrystals for in vivo tumor imaging.

Self-illuminating 64Cu-doped CdSe/ZnS nanocrystals for in vivo tumor imaging.
复制标题

自我添加的64cu掺杂的CDSE/ZnS纳米晶体用于体内肿瘤成像。

DOI:
10.1021/ja410438n
复制
发表时间:
2014-02-05
影响因子:
15
通讯作者:
Chen X
Chen X
中科院分区:
化学1区
文献类型:
--
作者:
Sun X;Huang X;Guo J;Zhu W;Ding Y;Niu G;Wang A;Kiesewetter DO;Wang ZL;Sun S;Chen X

文献摘要

参考文献

被引文献

相似文献

自发光半导体纳米晶体(也称为量子点(QD))的构造最近因其作为生物成像应用的高灵敏度光学探针的潜力而引起了广泛关注。在这里,我们通过阳离子交换反应将正电子发射放射性核素 64Cu 掺杂到 CdSe/ZnS 核/壳 QD 中,制备了自发光 QD 系统。 64Cu 掺杂的 CdSe/ZnS QD 表现出高效的切伦科夫共振能量转移 (CRET)。 64Cu 信号可以准确反映循环过程中 QD 的生物分布,且 64Cu 不会从纳米颗粒中解离。我们还探索了该系统用于体内肿瘤成像。该纳米探针在 U87MG 胶质母细胞瘤异种移植模型中表现出较高的肿瘤靶向能力(17 小时时间点为 12.7% ID/g),并且在没有激发光的情况下对肿瘤进行体内发光成像的可行性。这些自发光集成量子点的出现为体内肿瘤成像和检测提供了准确而方便的工具。
Construction of self-illuminating semiconducting nanocrystals, also called quantum dots (QDs), has attracted much attention recently due to their potential as highly sensitive optical probes for biological imaging applications. Here we prepared a self-illuminating QD system by doping positron-emitting radionuclide 64Cu into CdSe/ZnS core/shell QDs via a cation-exchange reaction. The 64Cu-doped CdSe/ZnS QDs exhibit efficient Cerenkov resonance energy transfer (CRET). The signal of 64Cu can accurately reflect the biodistribution of the QDs during circulation with no dissociation of 64Cu from the nanoparticles. We also explored this system for in vivo tumor imaging. This nanoprobe showed high tumor-targeting ability in a U87MG glioblastoma xenograft model (12.7% ID/g at 17 h time point) and feasibility for in vivo luminescence imaging of tumor in the absence of excitation light. The availability of these self-illuminating integrated QDs provides an accurate and convenient tool for in vivo tumor imaging and detection.
DOI: 10.1126/science.1103755
发表时间: 2004-11-05
期刊: SCIENCE
影响因子: 56.9
作者:
Son, DH;Hughes, SM;Alivisatos, AP
通讯作者: Alivisatos, AP
DOI: 10.1038/nbt1074
发表时间: 2005-03-01
影响因子: 46.9
作者:
Ntziachristos, V;Ripoll, J;Weissleder, R
通讯作者: Weissleder, R
DOI: 10.1371/journal.pone.0009470
发表时间: 2010-03-01
期刊: PloS one
影响因子: 3.7
作者:
Liu H;Ren G;Miao Z;Zhang X;Tang X;Han P;Gambhir SS;Cheng Z
通讯作者: Cheng Z
DOI: 10.7150/thno.4757
发表时间: 2012
期刊: Theranostics
影响因子: 12.4
作者:
Yong KT
通讯作者: Yong KT
DOI: 10.1002/anie.201107919
发表时间: 2012-01-01
影响因子: 16.6
作者:
Yang, Yanmei;Shao, Qing;Xing, Bengang
通讯作者: Xing, Bengang