DNA-programmable nanoparticle crystallization

Sung Yong Park, Abigail K. R. Lytton-Jean, Byeongdu Lee, Steven Weigand, George C. Schatz and Chad A. Mirkin ()
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Sung Yong Park: Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
Abigail K. R. Lytton-Jean: Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
Byeongdu Lee: Advanced Photon Source, Argonne National Laboratory
Steven Weigand: DND-CAT Synchrotron Research Center, Northwestern University, APS/ANL 432-A004, 9700 S. Cass Avenue, Argonne, Illinois 60439, USA
George C. Schatz: Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA
Chad A. Mirkin: Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, USA

Nature, 2008, vol. 451, issue 7178, 553-556

Abstract: DNA rules The idea that DNA base pairing could direct the crystallization of useful materials is a tempting one for nanotechnologists. Now — over ten years after it was first shown that DNA attached to nanoparticles can influence their assembly — two groups have put this concept into practice. Park et al. demonstrate that the DNA molecules attached to gold nanoparticles, and DNA molecules used to link them, can be selected to ensure that the nanoparticles self-assemble into either face-centred cubic or body-centred cubic crystals. The cover graphic, by Cole Krumbholz, is a close-up of the latter. Nykypanchuk et al. identify the requirements for DNA design and the crystallization conditions that allow the reversible formation of body-centred cubic crystals, with nanoparticles occupying just a few percent of a lattice volume. As discussed in News & Views, these developments might make it possible to create ordered and tunable 3D nanoscale architectures relevant for photonic and magnetic applications, biomedical sensing, and information or energy storage.

Date: 2008
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DOI: 10.1038/nature06508

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