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Issue 1, 2007
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DNA-mediated assembly of iron platinum (FePt) nanoparticles

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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 (TB).

Graphical abstract: DNA-mediated assembly of iron platinum (FePt) nanoparticles

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The article was received on 25 Sep 2006, accepted on 17 Oct 2006 and first published on 30 Oct 2006

Article type: Paper
DOI: 10.1039/B613887J
Citation: J. Mater. Chem., 2007,17, 52-55
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    DNA-mediated assembly of iron platinum (FePt) nanoparticles

    S. Srivastava, B. Samanta, P. Arumugam, G. Han and V. M. Rotello, J. Mater. Chem., 2007, 17, 52
    DOI: 10.1039/B613887J

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