High magnetic relaxivity in a fluorescent CdSe/CdS/ZnS quantum dot functionalized with MRI contrast molecules,Chemical Communications

当前位置： X-MOL 学术 › Chem. Commun. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

High magnetic relaxivity in a fluorescent CdSe/CdS/ZnS quantum dot functionalized with MRI contrast molecules
Chemical Communications ( IF 4.3 ) Pub Date : 2017-08-22 00:00:00 , DOI: 10.1039/c7cc05537d
S. G. McAdams _{1,

2,

3} , D. J. Lewis _{1,

2,

2,

3,

4} , P. D. McNaughter _{1,

2,

3} , E. A. Lewis _{2,

3,

4} , S. J. Haigh _{2,

3,

4} , P. O’Brien _{1,

2,

2,

3,

4} , F. Tuna _{1,

2,

2,

3,

5}

Affiliation

Light emitting semiconducting quantum dots show great promise as solar cells, optoelectronic devices and multimodal imaging probes. Here we demonstrate successful grafting of a thiol-functionalised Gd^III MRI contrast agent onto the surface of core-multishell CdSe/CdS/ZnS quantum dots. The resulting nanoprobe exhibits intense photoluminescence and unprecedentedly large T₁ relaxivity of 6800 mM⁻¹ s⁻¹ per nanoparticle due to secure implanting of ca. 620 magnetic centers per quantum dot unit.

中文翻译：

MRI对比分子功能化的荧光CdSe / CdS / ZnS量子点中的高磁弛豫

发光半导体量子点作为太阳能电池，光电器件和多峰成像探针具有广阔的前景。在这里，我们证明了巯基官能化的Gd ^III MRI造影剂成功接枝到核-多壳CdSe / CdS / ZnS量子点的表面上。所得到的纳米探针由于牢固地注入了约200nm的碳，因此表现出强烈的光致发光和每纳米粒子6800 mM ^-1 s ^-1的前所未有的大T ₁弛豫。每个量子点单位620个磁性中心。

更新日期：2017-09-21

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11