Proton-fueled, reversible assembly of gold nanoparticles by controlled triplex formation

被引:43
作者
Jung, Young Hwan
Lee, Kyung-Bok
Kim, Yang-Gyun
Choi, Insung S. [1 ]
机构
[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Chem, Taejon 305701, South Korea
[3] Korea Adv Inst Sci & Technol, Sch Mol Sci BK21, Ctr Mol Design & Synth, Taejon 305701, South Korea
[4] KBSI, Glycom Team, Taejon 305333, South Korea
关键词
DNA structures; gold; nanoparticles; protonation; self-assembly;
D O I
10.1002/anie.200601089
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Fueled up: The protonation of the imino group of cytosines in double-stranded DNA, which is required for the formation of a triplex, can be used to guide the assembly/disassembly of DNA-conjugated gold nanoparticles. The reversible switching of the nanoparticles is demonstrated by repeated cycling of pH between 5.0 and 6.5 with the proton as a fuel (see picture). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:5960 / 5963
页数:4
相关论文
共 22 条
[1]   Organization of 'nanocrystal molecules' using DNA [J].
Alivisatos, AP ;
Johnsson, KP ;
Peng, XG ;
Wilson, TE ;
Loweth, CJ ;
Bruchez, MP ;
Schultz, PG .
NATURE, 1996, 382 (6592) :609-611
[2]   The dynamic properties of an intramolecular transition from DNA duplex to cytosine-thymine motif triplex [J].
Brucale, M ;
Zuccheri, G ;
Samori, B .
ORGANIC & BIOMOLECULAR CHEMISTRY, 2005, 3 (04) :575-577
[3]   Triplex DNA: Fundamentals, advances, and potential applications for gene therapy [J].
Chan, PP ;
Glazer, PM .
JOURNAL OF MOLECULAR MEDICINE-JMM, 1997, 75 (04) :267-282
[4]   A DNA nanomachine based on a duplex-triplex transition [J].
Chen, Y ;
Lee, SH ;
Mao, C .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (40) :5335-5338
[5]  
Chen Y., 2004, ANGEW CHEM, V116, P5449
[6]   Triplex-forming molecules: from concepts to applications [J].
Faria, M ;
Giovannangeli, C .
JOURNAL OF GENE MEDICINE, 2001, 3 (04) :299-310
[7]   Poly(L-lysine)-graft-dextran copolymer:: amazing effects on triplex stabilization under physiological pH and ionic conditions (in vitro) [J].
Ferdous, A ;
Watanabe, H ;
Akaike, T ;
Maruyama, A .
NUCLEIC ACIDS RESEARCH, 1998, 26 (17) :3949-3954
[8]   A gold nanoparticle based approach for screening triplex DNA binders [J].
Han, MS ;
Lytton-Jean, AKR ;
Mirkin, CA .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (15) :4954-4955
[9]   Reversible switching of DNA-gold nanoparticle aggregation [J].
Hazarika, P ;
Ceyhan, B ;
Niemeyer, CM .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (47) :6469-6471
[10]  
Hazarika P., 2004, Angew. Chem. Int. Ed, V116, P6631