Enhanced quantum yield of dendrimer-entrapped gold nanodots by a specific ion-pair association and microwave irradiation for bioimaging

被引:52
作者
Jao, Yu-Chen [1 ]
Chen, Meng-Kai [1 ]
Lin, Shu-Yi [1 ]
机构
[1] Natl Hlth Res Inst, Ctr Nanomed Res, Zhunan 35053, Taiwan
关键词
ENCAPSULATED METAL NANOPARTICLES; POLY(AMIDOAMINE) DENDRIMERS; STARBURST DENDRIMERS; FLUORESCENT; NANOCLUSTERS; NANODEVICE; SIZE;
D O I
10.1039/b926364k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A specific ion-pair approach can be involved in precise control of the size of gold nanodots. The dendrimers with terminal amine and hydroxyl groups were a hydrophilic and hydrophobic microcavity-template, respectively, for trapping gold salts. The facile strategy can significantly enhance the quantum yield of gold nanodots from 20% to 62% after microwave irradiation.
引用
收藏
页码:2626 / 2628
页数:3
相关论文
共 26 条
[1]   Synthesis of ω-hydroxy hexathiolate-protected subnanometric gold clusters [J].
Abad, Jose M. ;
Sendroiu, Luliana E. ;
Gass, Mhairi ;
Bleloch, Andrew ;
Mills, Allan J. ;
Schiffrin, David J. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (43) :12932-+
[2]   Nanoparticle-free synthesis of fluorescent gold nanoclusters at physiological temperature [J].
Bao, Yuping ;
Zhong, Chang ;
Vu, Dung M. ;
Temirov, Jamshid P. ;
Dyer, R. Brian ;
Martinez, Jennifer S. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (33) :12194-12198
[3]   Dendrimers: design, synthesis and chemical properties [J].
Boas, U. ;
Christensen, J. B. ;
Heegaard, P. M. H. .
JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (38) :3786-3798
[4]   Gold nanoparticle size controlled by polymeric Au(I) thiolate precursor size [J].
Brinas, Raymond P. ;
Hu, Minghui ;
Qian, Luping ;
Lymar, Elena S. ;
Hainfeld, James F. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (03) :975-982
[5]   Dendrimer-encapsulated metal nanoparticles: Synthesis, characterization, and applications to catalysis [J].
Crooks, RM ;
Zhao, MQ ;
Sun, L ;
Chechik, V ;
Yeung, LK .
ACCOUNTS OF CHEMICAL RESEARCH, 2001, 34 (03) :181-190
[6]   Etching colloidal gold nanocrystals with hyperbranched and multivalent polymers: A new route to fluorescent and water-soluble atomic clusters [J].
Duan, Hongwei ;
Nie, Shuming .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (09) :2412-+
[7]  
Esumi K, 2000, LANGMUIR, V16, P2604, DOI 10.1021/1a991291w
[8]   Synthesis of highly fluorescent gold nanoparticles for sensing Mercury(II) [J].
Huang, Chih-Ching ;
Yang, Zusing ;
Lee, Kun-Hong ;
Chang, Huan-Tsung .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (36) :6824-6828
[9]   Synthesis of wavelength-tunable luminescent gold and gold/silver nanodots [J].
Huang, Chih-Ching ;
Liao, Hao-Ying ;
Shiang, Yen-Chun ;
Lin, Zong-Hong ;
Yang, Zusing ;
Chang, Huan-Tsung .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (06) :755-759
[10]   Synthesis, Characterization, and Bioconjugation of Fluorescent Gold Nanoclusters toward Biological Labeling Applications [J].
Lin, Cheng-An J. ;
Yang, Ting-Ya ;
Lee, Chih-Hsien ;
Huang, Sherry H. ;
Sperling, Ralph A. ;
Zanella, Marco ;
Li, Jimmy K. ;
Shen, Ji-Lin ;
Wang, Hsueh-Hsiao ;
Yeh, Hung-I ;
Parak, Wolfgang J. ;
Chang, Walter H. .
ACS NANO, 2009, 3 (02) :395-401