Fluorescence emission from dendrimers and its pH dependence

被引:359
作者
Wang, DJ [1 ]
Imae, T [1 ]
机构
[1] Nagoya Univ, Res Ctr Mat Sci, Nagoya, Aichi 4648602, Japan
关键词
D O I
10.1021/ja0454992
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A strong fluorescence emission was observed from different kinds of dendrimers under acidic condition. There was a remarkable difference in fluorescence properties between second and fourth generation NH2-terminated poly(amido amine) dendrimers. It can be assumed that the backbone of the dendrimer played the key role in forming the novel fluorescent center. Copyright © 2004 American Chemical Society.
引用
收藏
页码:13204 / 13205
页数:2
相关论文
共 27 条
[1]   Rouse dynamics of a dendrimer model in the Theta condition [J].
Cai, CZ ;
Chen, ZU .
MACROMOLECULES, 1997, 30 (17) :5104-5117
[2]   Unusual pH-dependent polarity changes in PAMAM dendrimers: Evidence for pH-responsive conformational changes [J].
Chen, W ;
Tomalia, DA ;
Thomas, JL .
MACROMOLECULES, 2000, 33 (25) :9169-9172
[3]   Poly(amidoamine) (PAMAM) dendrimers: from biomimicry to drug delivery and biomedical applications [J].
Esfand, R ;
Tomalia, DA .
DRUG DISCOVERY TODAY, 2001, 6 (08) :427-436
[4]   Small-angle neutron scattering investigations of layer-block dendrimers in aqueous solutions [J].
Funayama, K ;
Imae, T ;
Aoi, K ;
Tsutsumiuchi, K ;
Okada, M ;
Furusaka, M ;
Nagao, M .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (07) :1532-1539
[5]   Nanoscale solution structure and transfer capacity of amphiphilic poly(amidoamine) dendrimers having water and polar guest molecules inside [J].
Ghosh, SK ;
Kawaguchi, S ;
Jinbo, Y ;
Izumi, Y ;
Yamaguchi, K ;
Taniguchi, T ;
Nagai, K ;
Koyama, K .
MACROMOLECULES, 2003, 36 (24) :9162-9169
[6]   Chemistry - One generation at a time [J].
Gorman, C .
NATURE, 2002, 415 (6871) :487-488
[7]   Structure and dimensions of PAMAM/PEG dendrimer-star polymers [J].
Hedden, RC ;
Bauer, BJ .
MACROMOLECULES, 2003, 36 (06) :1829-1835
[8]   Small-angle neutron scattering and surface force investigations of poly(amido amine) dendrimer with hydroxyl end groups [J].
Imae, T ;
Funayama, K ;
Aoi, K ;
Tsutsumiuchi, K ;
Okada, M ;
Furusaka, M .
LANGMUIR, 1999, 15 (12) :4076-4084
[9]   Comparison of nitrogen core and ethylenediamine core starburst dendrimers through photochemical and spectroscopic probes [J].
Jockusch, S ;
Ramirez, J ;
Sanghvi, K ;
Nociti, R ;
Turro, NJ ;
Tomalia, DA .
MACROMOLECULES, 1999, 32 (13) :4419-4423
[10]   Effect of protonation and PAMAM dendrimer size on the complexation and dynamic mobility of 2-naphthol [J].
Kleinman, MH ;
Flory, JH ;
Tomalia, DA ;
Turro, NJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (48) :11472-11479