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Assembly of polypeptide-functionalized gold nanoparticles through a heteroassociation- and folding-dependent bridging
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för biokemi och organisk kemi, Organisk kemi.
2008 (engelsk)Inngår i: Nano letters (Print), ISSN 1530-6984, E-ISSN 1530-6992, Vol. 8, nr 8, s. 2473-2478Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Gold nanoparticles were functionalized with a synthetic polypeptide, de novo-designed to associate with a charge complementary linker polypeptide in a folding-dependent manner. A heterotrimeric complex that folds into two disulphide-linked four-helix bundles is formed when the linker polypeptide associates with two of the immobilized peptides. The heterotrimer forms in between separate particles and induces a rapid and extensive aggregation with a well-defined interpartide spacing. The aggregated particles are redispersed when the disulphide bridge in the linker polypeptide is reduced.

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2008. Vol. 8, nr 8, s. 2473-2478
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URN: urn:nbn:se:uu:diva-109140DOI: 10.1021/nl8014796ISI: 000258440700063OAI: oai:DiVA.org:uu-109140DiVA, id: diva2:248955
Tilgjengelig fra: 2009-10-09 Laget: 2009-10-09 Sist oppdatert: 2017-12-13bibliografisk kontrollert

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