Fabrication of Ag@SiO2@Y2O3:Er Nanostructures for Bioimaging: Tuning of the Upconversion Fluorescence with Silver Nanoparticles

被引：462

作者：

Zhang, Fan ^{[1
,2
,3
]}

Braun, Gary B. ^{[1
]}

Shi, Yifeng ^{[1
]}

Zhang, Yichi ^{[1
]}

Sun, Xiaohong ^{[1
]}

Reich, Norbert O. ^{[1
]}

Zhao, Dongyuan ^{[2
,3
]}

Stucky, Galen ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[2] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

[3] Fudan Univ, Adv Mat Lab, Shanghai 200433, Peoples R China

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/ja909108x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrated that the nanostructures comprising silver cores and dense layers of Y2O3:Er separated by a silica shell are an excellent model system to study the interaction between upconversion materials and metals in nanoscale. This architecture allows for versatile control of the Y2O3:Er-metal interaction through control of the silica dielectric spacer thickness and the metal-core size. Finally, the nanoparticles are potentially Interesting as fluorescent labels in. for instance (single particle), imaging experiments or bioassays which require low background or tissue penetrating wavelengths.

引用

页码：2850 / +

页数：4

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