Controlled Formation of Emissive Silver Nanoclusters Using Rationally Designed Metal-Binding Proteins

被引：22

作者：

Morozov, Vasily A.

Ogawa, Michael Y. ^{[1
]}

机构：

[1] Bowling Green State Univ, Dept Chem, Bowling Green, OH 43403 USA

来源：

INORGANIC CHEMISTRY | 2013年 / 52卷 / 16期

关键词：

AG NANOCLUSTERS;

D O I：

10.1021/ic400760v

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The metal-binding properties of rationally designed, synthetic proteins were used to prepare a series of emissive silver nanoclusters having predictable sizes and emission energies. Metal-binding a-helical coiled coils were designed to exist as peptide trimers, tetramers, and hexamers and found to uniquely bind 6, 8, and 12 Ag+ ions, respectively. Subsequent treatment with a chemical reducing agent produced a series of peptide-bound Ag-0 nanoclusters that display a strong visible fluorescence whose emission energies depend on the number of bound metal ions in excellent agreement with theory.

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收藏

页码：9166 / 9168

页数：3

相关论文

共 25 条

[1] DETERMINATION OF HELIX AND BETA-FORM OF PROTEINS IN AQUEOUS-SOLUTION BY CIRCULAR-DICHROISM [J].

CHEN, YH ;

YANG, JT ;

CHAU, KH .

BIOCHEMISTRY, 1974, 13 (16) :3350-3359

[2] Serial Silver Clusters Biomineralized by One Peptide [J].

Cui, Yanyan ;

Wang, Yaling ;

Liu, Ru ;

Sun, Zhipeng ;

Wei, Yueteng ;

Zhao, Yuliang ;

Gao, Xueyun .

ACS NANO, 2011, 5 (11) :8684-8689

[3] Dendrimer templates for the formation of gold nanoclusters [J].

Gröhn, F ;

Bauer, BJ ;

Akpalu, YA ;

Jackson, CL ;

Amis, EJ .

MACROMOLECULES, 2000, 33 (16) :6042-6050

[4] Evidence that a miniature CuI metalloprotein undergoes collisional electron transfer in the inverted Marcus region [J].

Hong, Jing ;

Kharenko, Olesya A. ;

Fan, Jiufeng ;

Xie, Fei ;

Petros, Amy K. ;

Gibney, Brian R. ;

Ogawa, Michael Y. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (37) :6137-6140

[5] DNA Encapsulation of 10 Silver Atoms Producing a Bright, Modulatable, Near-Infrared-Emitting Cluster [J].

Petty, Jeffrey T. ;

Fan, Chaoyang ;

Story, Sandra P. ;

Sengupta, Bidisha ;

Iyer, Ashlee St John ;

Prudowsky, Zachary ;

Dickson, Robert M. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (17) :2524-2529

[6] DNA-templated Ag nanocluster formation [J].

Petty, JT ;

Zheng, J ;

Hud, NV ;

Dickson, RM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (16) :5207-5212

[7] Oligonucleotide-stabilized Ag nanocluster fluorophores [J].

Richards, Chris I. ;

Choi, Sungmoon ;

Hsiang, Jung-Cheng ;

Antoku, Yasuko ;

Vosch, Tom ;

Bongiorno, Angelo ;

Tzeng, Yih-Ling ;

Dickson, Robert M. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (15) :5038-+

[8] Sensitive detection of cysteine based on fluorescent silver clusters [J].

Shang, Li ;

Dong, Shaojun .

BIOSENSORS & BIOELECTRONICS, 2009, 24 (06) :1569-1573

[9] A complementary palette of fluorescent silver nanoclusters [J].

Sharma, Jaswinder ;

Yeh, Hsin-Chih ;

Yoo, Hyojong ;

Werner, James H. ;

Martinez, Jennifer S. .

CHEMICAL COMMUNICATIONS, 2010, 46 (19) :3280-3282

[10] Water-soluble fluorescent Ag nanoclusters obtained from multiarm star poly(acrylic acid) as "molecular hydrogel" templates [J].

Shen, Zhong ;

Duan, Hongwei ;

Frey, Holger .

ADVANCED MATERIALS, 2007, 19 (03) :349-+