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Issue 36, 2015
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Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

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Abstract

We present a new method to program the covalent binding of gold nanoparticles onto graphene oxide sheets. The binding selectivity is driven by the synergy of chemically modified oligonucleotides, grafted onto the surfaces of nanoparticles and graphene oxide. In the presence of a templating complementary DNA strand, nanoparticles are brought near the surface of the graphene oxide. Once in close proximity, the DNA strands are ligated to create a permanent link between the nanoparticles and graphene oxide, ensuring stability of the system even during DNA melting conditions. Due to the selectivity and specificity of DNA, a second layer of gold nanoparticles of different size can be grafted on the top of the first layer of particles. The simplicity of this new method allows for its universal applicability when the formation of highly programmable, covalently linked hybrid nanoparticle–graphene oxide structures is a necessity.

Graphical abstract: Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

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Publication details

The article was received on 03 Jul 2015, accepted on 17 Aug 2015 and first published on 24 Aug 2015


Article type: Paper
DOI: 10.1039/C5TC01999K
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. C, 2015,3, 9379-9384
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    Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA

    A. Heuer-Jungemann, L. Kiessling, E. Stratakis, E. Kymakis, A. H. El-Sagheer, T. Brown and A. G. Kanaras, J. Mater. Chem. C, 2015, 3, 9379
    DOI: 10.1039/C5TC01999K

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