The controlled self-assembly of nanostrucutres on surfaces with nanometer resolution is of great interest in the fields of nanoscience and nanotechnology.Here we describe different strategies to control the immobilization of nanostructures on lithographically defined, biochemically functionalized metal nanopatterns.Using electron-beam and nanoimprint lithography we fabricated sub-10nm metal dots arranged in multiple configurations.DNA nanostrucutres (such as DNA-origami) have been assembled with high precision via hybridization in situ on properly funnctioanlized nanodots. The DNA-origami employed functioned as a model-system for the self-assembly of nanorods on metal-nanodot pairs: we characterized the self-assembly via fluorescence microscopy and Atomic Force Microscopy. Similarly, we have developed a platform for the self-assembly of Quantum Dots (QDs) on nanopatterned surfaces. . The method here presented yields control at the single dot level to achieve predominantly single particle structures consisting of a QD coupled to a metal nanoparticle (MNP).The high density and resolution achievable with our platform/s can find general application for the self-aasembly of  other nanocrystals, and nano-moieties

Nanopatterned surfaces for the templated assembly of nanostructures: From DNA-origami to quantum dot self-assembly

243rd National Meeting (2012)

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