Magnetotransport of one-dimensional chains of CoFe2O4 nanoparticles ordered along DNA

被引：32

作者：

Kinsella, Joseph M. ^{[1
]}

Ivanisevic, Albena ^{[1
,2
]}

机构：

[1] Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47906 USA

[2] Purdue Univ, Dept Chem, W Lafayette, IN 47906 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 09期

关键词：

D O I：

10.1021/jp712002a

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：

We have investigated the magnetotransport properties of 5 nm CoFe2O4 nanoparticles aligned into one-dimensional chains using a DNA guide. The chemically synthesized particles were capped with a positively charged ligand molecule that drives the electrostatic assembly when incubated in solutions containing DNA. To test the transport, these nanoparticle-coated DNA strands were adsorbed onto microfabricated devices. Large room-temperature magnetoresistance is observed at high fields in these samples.

引用

页码：3191 / 3193

页数：3

共 18 条

[1] Magnetization process of a single chain of nanomagnets [J].

Adeyeye, AO ;

Welland, ME .

APPLIED PHYSICS LETTERS, 2002, 80 (13) :2344-2346

[2] High resolution magnetic force microscopy study of e-beam lithography patterned Co/Pt nanodots [J].

Belle, B. D. ;

Schedin, F. ;

Pilet, N. ;

Ashworth, T. V. ;

Hill, E. W. ;

Nutter, P. W. ;

Hug, H. J. ;

Miles, J. J. .

JOURNAL OF APPLIED PHYSICS, 2007, 101 (09)

[3] 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

[4] Magnetic superlattices and their nanoscale phase transition effects [J].

Cheon, J ;

Park, JI ;

Choi, JS ;

Jun, YW ;

Kim, S ;

Kim, MG ;

Kim, YM ;

Kim, YJ .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (09) :3023-3027

[5] Multimillimetre-large superlattices of air-stable iron-cobalt nanoparticles [J].

Desvaux, C ;

Amiens, C ;

Fejes, P ;

Renaud, P ;

Respaud, M ;

Lecante, P ;

Snoeck, E ;

Chaudret, B .

NATURE MATERIALS, 2005, 4 (10) :750-753

[6] Chains of semiconductor nanoparticles templated on DNA [J].

Dittmer, WU ;

Simmel, FC .

APPLIED PHYSICS LETTERS, 2004, 85 (04) :633-635

[7] Dip-pen nanolithography with magnetic Fe2O3 nanocrystals [J].

Gundiah, G ;

John, NS ;

Thomas, PJ ;

Kulkarni, GU ;

Rao, CNR ;

Heun, S .

APPLIED PHYSICS LETTERS, 2004, 84 (26) :5341-5343

[8] Synthesis, properties, and applications of iron nanoparticles [J].

Huber, DL .

SMALL, 2005, 1 (05) :482-501

[9] DNA-templated magnetic nanowires with different compositions: Fabrication and analysis [J].

Kinsella, Joseph M. ;

Ivanisevic, Albena .

LANGMUIR, 2007, 23 (07) :3886-3890

[10] Preparation of water-soluble magnetite nanocrystals from hydrated ferric salts in 2-pyrrolidone:: Mechanism leading to Fe3O4 [J].

Li, Z ;

Sun, Q ;

Gao, MY .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (01) :123-126

← 1 2 →