Luminescent cadmium sulfide nanochains templated on unfixed deoxyribonucleic acid and their fractal alignment by droplet dewetting

被引：21

作者：

Ge, Cunwang ^{[1
,2
]}

Xu, Min ^{[1
]}

Fang, Jinhuai ^{[2
]}

Lei, Jianping ^{[1
]}

Ju, Huangxian ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci MOE, Nanjing 210093, Peoples R China

[2] Nantong Univ, Sch Chem & Chem Engn, Nantong 226007, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 29期

关键词：

D O I：

10.1021/jp8001178

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 method for self-assembly of cadmium sulfide (CdS) nanochains (NCs) was proposed by direct deposition of CdS on unfixed DNA (DNA) template with 2-aminoethanethiol as a capping agent. The fractal alignment of US NCs on meniscus was then addressed utilizing droplet dewetting. The morphologies of US NCs were characterized with transmission electron microscopy, and their luminescent behaviors were investigated by photoluminescence and electrogenerated chemiluminescence (ECL). The presence of DNA scaffolds resulted in perfect surface status and efficient ECL of CdS NCs. The ECL mechanism and the heterogeneous nucleation process were also discussed. Adjusting the molar ratio of DNA to cadmium cation for synthesis could efficiently control the eventual NCs fractal on meniscus during the droplet dewetting and the properties of obtained NCs. The preferred pattern was formed at the molar ratio of 1: 1. The present strategy provides a new way to synthesize and align nanowire devices without fixation of DNA and presynthesis of quantum dots (QDs) and has a potential applicability in pattern manufacture in natural way.

引用

页码：10602 / 10608

页数：7

共 46 条

[1] PHOTOLUMINESCENCE SPECTRA OF GAS-EVAPORATED CDS MICROCRYSTALS [J].

AGATA, M ;

KURASE, H ;

HAYASHI, S ;

YAMAMOTO, K .

SOLID STATE COMMUNICATIONS, 1990, 76 (08) :1061-1065

[2] REACTIVITIES OF CHLORINE ATOMS AND PEROXYL RADICALS FORMED IN THE RADIOLYSIS OF DICHLOROMETHANE [J].

ALFASSI, ZB ;

MOSSERI, S ;

NETA, P .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (04) :1380-1385

[3] Self-organized, highly luminescent CdSe nanorod-DNA complexes [J].

Artemyev, M ;

Kisiel, D ;

Abmiotko, S ;

Antipina, MN ;

Khomutov, GB ;

Kislov, VV ;

Rakhnyanskaya, AA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (34) :10594-10597

[4] Electrochemistry and electrogenerated chemiluminescence of CdTe nanoparticles [J].

Bae, Y ;

Myung, N ;

Bard, AJ .

NANO LETTERS, 2004, 4 (06) :1153-1161

[5] Electrochemistry and electrogenerated chemiluminescence of semiconductor nanocrystals in solutions and in films [J].

Bard, AJ ;

Ding, ZF ;

Myung, N .

SEMICONDUCTOR NANOCRYSTALS AND SILICATE NAOPARTICLES, 2005, 118 :1-57

[6] ELECTRONIC-STRUCTURE AND PHOTOEXCITED-CARRIER DYNAMICS IN NANOMETER-SIZE CDSE CLUSTERS [J].

BAWENDI, MG ;

WILSON, WL ;

ROTHBERG, L ;

CARROLL, PJ ;

JEDJU, TM ;

STEIGERWALD, ML ;

BRUS, LE .

PHYSICAL REVIEW LETTERS, 1990, 65 (13) :1623-1626

[7] Ionic surface masking for low background in single- and double-stranded DNA-templated silver and copper nanorods [J].

Becerril, HA ;

Stoltenberg, RM ;

Monson, CF ;

Woolley, AT .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (04) :611-616

[8] ALIGNMENT AND SENSITIVE DETECTION OF DNA BY A MOVING INTERFACE [J].

BENSIMON, A ;

SIMON, A ;

CHIFFAUDEL, A ;

CROQUETTE, V ;

HESLOT, F ;

BENSIMON, D .

SCIENCE, 1994, 265 (5181) :2096-2098

[9] DNA-templated assembly and electrode attachment of a conducting silver wire [J].

Braun, E ;

Eichen, Y ;

Sivan, U ;

Ben-Yoseph, G .

NATURE, 1998, 391 (6669) :775-778

[10] Catalytic DNA: A novel tool for gene suppression [J].

Cairns, MJ ;

Saravolac, EG ;

Sun, LQ .

CURRENT DRUG TARGETS, 2002, 3 (03) :269-279

← 1 2 3 4 5 →