4.8 Article

Programmable self-assembly of metal ions inside artificial DNA duplexes

Journal

NATURE NANOTECHNOLOGY
Volume 1, Issue 3, Pages 190-U5

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/nnano.2006.141

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The ultimate bottom-up approach for the construction of functional nanosystems requires the precise arrangement of atoms and molecules in three dimensions. DNA is currently one of the most prominent molecules able to self-assemble into complex networks(1,2) and is therefore regarded as the 'silicon of the nano-world'(3). Metals and metal ions, in contrast, are the atomic building-blocks needed in such materials to establish functions such as electrical conductivity or magnetism. Here we report a new concept, which efficiently combines metal ions and DNA. The DNA structure is used as a matrix to program robustly the complexation of different metal ions under precise control with regard to element, number and composition.

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