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

Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA
Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA
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
2050-7526
9379-9384
Heuer-Jungemann, Amelie
19d5a272-0f65-4679-b62b-263fa1806230
Kiessling, Liam
718d80bd-6d31-4eb4-9c55-7a30278e16c3
Stratakis, Emmanuel
73e27da3-b109-4404-94ef-12b8f1ab2d16
Kymakis, Emmanuel
8f3dfa7d-dfe6-40ee-9fca-ae1f0ab6f444
El-Sagheer, Afaf H.
0bf56d90-78ee-4772-add8-453ccacc39be
Brown, Tom
1cd7df32-b945-4ca1-8b59-a51a30191472
Kanaras, Antonios G.
667ecfdc-7647-4bd8-be03-a47bf32504c7
Heuer-Jungemann, Amelie
19d5a272-0f65-4679-b62b-263fa1806230
Kiessling, Liam
718d80bd-6d31-4eb4-9c55-7a30278e16c3
Stratakis, Emmanuel
73e27da3-b109-4404-94ef-12b8f1ab2d16
Kymakis, Emmanuel
8f3dfa7d-dfe6-40ee-9fca-ae1f0ab6f444
El-Sagheer, Afaf H.
0bf56d90-78ee-4772-add8-453ccacc39be
Brown, Tom
1cd7df32-b945-4ca1-8b59-a51a30191472
Kanaras, Antonios G.
667ecfdc-7647-4bd8-be03-a47bf32504c7

Heuer-Jungemann, Amelie, Kiessling, Liam, Stratakis, Emmanuel, Kymakis, Emmanuel, El-Sagheer, Afaf H., Brown, Tom and Kanaras, Antonios G. (2015) Programming the assembly of gold nanoparticles on graphene oxide sheets using DNA. Journal of Materials Chemistry C, 2015 (36), 9379-9384. (doi:10.1039/C5TC01999K).

Record type: Article

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

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c5tc01999k - Version of Record
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Accepted/In Press date: 17 August 2015
e-pub ahead of print date: 24 August 2015
Published date: 28 September 2015
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 380852
URI: https://eprints.soton.ac.uk/id/eprint/380852
ISSN: 2050-7526
PURE UUID: f078f626-a2c6-407b-862e-9f7d6e567a2f
ORCID for Antonios G. Kanaras: ORCID iD orcid.org/0000-0002-9847-6706

Catalogue record

Date deposited: 18 Sep 2015 08:18
Last modified: 20 Jul 2019 00:51

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