Letter abstract
Nature Materials 8, 388 - 391 (2009)
Published online: 29 March 2009 | doi:10.1038/nmat2421
Subject Categories: Biological materials | Nanoscale materials | Design synthesis and processing
Stepwise surface encoding for high-throughput assembly of nanoclusters
Mathew M. Maye1,3, Dmytro Nykypanchuk1, Marine Cuisinier1, Daniel van der Lelie2 & Oleg Gang1
Self-assembly offers a promising method to organize functional nanoscale objects into two-dimensional (2D) and 3D superstructures for exploiting their collective effects1, 2, 3. On the other hand, many unique phenomena emerge after arranging a few nanoscale objects into clusters, the so-called artificial molecules4, 5, 6, 7, 8, 9, 10. The strategy of using biomolecular linkers between nanoparticles has proven especially useful for construction of such nanoclusters4, 5, 6, 11, 12, 13, 14, 15, 16. However, conventional solution-based reactions typically yield a broad population of multimers or isomers of clusters; furthermore, the efficiency of fabrication is often limited4, 5, 6, 11, 12, 13, 14, 15, 16. Here, we describe a novel high-throughput method for designing and fabricating clusters using DNA-encoded nanoparticles assembled on a solid support in a stepwise manner. This method efficiently imparts particles with anisotropy during their assembly and disassembly at a surface, generating remarkably high yields of well-defined dimer clusters and Janus (two-faced) nanoparticles. The method is scalable and modular, assuring large quantities of clusters of designated sizes and compositions.
- Center for Functional Nanomaterials
- Biology Department, Brookhaven National Laboratory, Upton, New York 11973, USA
- Present address: Department of Chemistry, Syracuse University, Syracuse, New York 13244 USA
Correspondence to: Oleg Gang1 e-mail: ogang@bnl.gov
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