Toggling Between Blue- and Red-Emitting Fluorescent Silver Nanoclusters

被引：75

作者：

Anand, Uttam ^{[1
]}

Ghosh, Subhadip ^{[1
]}

Mukherjee, Saptarshi ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res Bhopal, Dept Chem, Bhopal 462023, Madhya Pradesh, India

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2012年 / 3卷 / 23期

关键词：

HIGHLY FLUORESCENT; QUANTUM DOTS; GOLD NANOPARTICLES; CLUSTERS;

D O I：

10.1021/jz301733y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A very efficient protocol for synthesizing highly fluorescent, protein-templated silver nanoclusters (Ag/NCs) has been discussed. Two types of Ag/NCs (Ag-9/HSA and Ag-14/HSA), although showing significant differences in their photophysical properties, can be interconverted at will, which makes this study unique. The Ag/HSA NCs have been quantified by several spectroscopic techniques, and they find tremendous applications as photoluminescent markers. Besides their rather easy synthetic methodology, our Ag/HSA NCs show two-photon excitation properties that enable them to be used in bioimaging.

引用

收藏

页码：3605 / 3609

页数：5

相关论文

共 28 条

[1] Facile Synthesis of Water-Soluble Fluorescent Silver Nanoclusters and HgII Sensing [J].

Adhikari, Bimalendu ;

Banerjee, Arindam .

CHEMISTRY OF MATERIALS, 2010, 22 (15) :4364-4371

[2]

Derfus AM, 2004, NANO LETT, V4, P11, DOI 10.1021/nl0347334

[3] Fluorescent silver nanoclusters [J].

Diez, Isabel ;

Ras, Robin H. A. .

NANOSCALE, 2011, 3 (05) :1963-1970

[4] The golden age: gold nanoparticles for biomedicine [J].

Dreaden, Erik C. ;

Alkilany, Alaaldin M. ;

Huang, Xiaohua ;

Murphy, Catherine J. ;

El-Sayed, Mostafa A. .

CHEMICAL SOCIETY REVIEWS, 2012, 41 (07) :2740-2779

[5] Highly Sequence-Dependent Formation of Fluorescent Silver Nanoclusters in Hybridized DNA Duplexes for Single Nucleotide Mutation Identification [J].

Guo, Weiwei ;

Yuan, Jipei ;

Dong, Qingzhe ;

Wang, Erkang .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (03) :932-+

[6] Polyelectrolyte Wrapping Layers Control Rates of Photothermal Molecular Release from Gold Nanorods [J].

Huang, Jingyu ;

Jackson, Kaliah S. ;

Murphy, Catherine J. .

NANO LETTERS, 2012, 12 (06) :2982-2987

[7] Highly fluorescent silver nanoclusters stabilized by glutathione: a promising fluorescent label for bioimaging [J].

Le Guevel, Xavier ;

Spies, Christian ;

Daum, Nicole ;

Jung, Gregor ;

Schneider, Marc .

NANO RESEARCH, 2012, 5 (06) :379-387

[8] Formation of Fluorescent Metal (Au, Ag) Nanoclusters Capped in Bovine Serum Albumin Followed by Fluorescence and Spectroscopy [J].

Le Guevel, Xavier ;

Hoetzer, Benjamin ;

Jung, Gregor ;

Hollemeyer, Klaus ;

Trouillet, Vanessa ;

Schneider, Marc .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (22) :10955-10963

[9] One-Pot Synthesis of Aptamer-Functionalized Silver Nanoclusters for Cell-Type-Specific Imaging [J].

Li, Jingling ;

Zhong, Xiaoqin ;

Cheng, Fangfang ;

Zhang, Jian-Rong ;

Jiang, Li-Ping ;

Zhu, Jun-Jie .

ANALYTICAL CHEMISTRY, 2012, 84 (09) :4140-4146

[10] A fifteen atom silver cluster confined in bovine serum albumin [J].

Mathew, Ammu ;

Sajanlal, P. R. ;

Pradeep, T. .

JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (30) :11205-11212