Formation Of Defined Nanoparticle Constructs Containing Gold, Silver, And Gold-Silver Nanoparticles

Nanoparticles represent versatile building blocks in material science and nanotechnology. Thereby, the defined assembly of nanostructures is of significant importance. Short DNA sequences can be bound to the nanoparticle surface thus enabeling highly specific DNA hybridization-driven events that direct the formation of nanoparticle constructs. The well-established system based on thiolated DNA was thereby complemented with amino-functionalized DNA. Here, examples for the defined formation of gold/gold and gold/silver nanoparticle constructs are demonstrated, respectively. In addition, gold-silver core-shell nanoparticles are introduced as further building blocks for the hybridization-control led formation of nanoparticle constructs.