Gold and gold-silver core-shell nanoparticle constructs with defined size based on DNA hybridization

in: Journal of Nanoparticle Research (2009)
Steinbrück, Andrea; Csáki, Andrea; Ritter, Kathrin; Leich, Martin; Köhler, J. Michael; Fritzsche, Wolfgang
Nanoparticles represent versatile building blocks in material science and nanotechnology. Thereby, the defined assembly of nanostructures (13 and 56 nm in diameter, respectively) is of significant importance. Short DNA sequences can be bound to the nanoparticle surface thus enabling highly specific DNA hybridization-driven events that direct the formation of nanoparticle constructs. In this paper, examples for the defined formation of gold nanoparticle constructs are demonstrated. In addition, gold–silver core-shell nanoparticles are introduced as further building blocks for the hybridization-controlled formation of nanoparticle constructs.

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