DNA-mediated assembly of iron platinum (FePt) nanoparticles

被引：35

作者：

Srivastava, Sudhanshu ^{[1
]}

Samanta, Bappaditya ^{[1
]}

Arumugam, Palaniappan ^{[1
]}

Han, Gang ^{[1
]}

Rotello, Vincent M. ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2007年 / 17卷 / 01期

关键词：

D O I：

10.1039/b613887j

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：

Nanocomposite materials consisting of FePt nanoparticles and DNA were constructed via DNA-mediated "bricks and mortar'' self-assembly. Electrostatic interaction between the cationic nanoparticles and the DNA through surface recognition led to the formation of extended composite aggregates. These DNA-assembled aggregates feature increased interparticle spacing arising from the DNA "mortar''. The enhanced structure and increased spacing in the bio-nanocomposite assembly was found to alter the magnetic properties of the assemblies, as demonstrated by a 54 K change in blocking temperature (T-B).

引用

页码：52 / 55

页数：4

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