Format

Send to

Choose Destination
Nat Mater. 2015 Aug;14(8):833-9. doi: 10.1038/nmat4293. Epub 2015 May 25.

Anisotropic nanoparticle complementarity in DNA-mediated co-crystallization.

Author information

1
1] Department of Chemistry, Northwestern University, 2145 Sheridan Rd Evanston, Illinois 60208, USA [2] International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Rd Evanston, Illinois 60208, USA.
2
1] International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Rd Evanston, Illinois 60208, USA [2] Department of Materials Science and Engineering, Northwestern University, 2220 Campus Dr Evanston, Illinois 60208, USA.
3
X-Ray Science Division, Argonne National Laboratory, 9700 S Cass Ave Argonne, Illinois 60439, USA.
4
1] Department of Chemistry, Northwestern University, 2145 Sheridan Rd Evanston, Illinois 60208, USA [2] International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Rd Evanston, Illinois 60208, USA [3] Department of Materials Science and Engineering, Northwestern University, 2220 Campus Dr Evanston, Illinois 60208, USA.

Abstract

Whether two species will co-crystallize depends on the chemical, physical and structural complementarity of the interacting components. Here, by using DNA as a surface ligand, we selectively co-crystallize mixtures of two different anisotropic nanoparticles and systematically investigate the effects of nanoparticle size and shape complementarity on the resultant crystal symmetry, microstrain, and effective 'DNA bond' length and strength. We then use these results to understand a more complicated system where both size and shape complementarity change, and where one nanoparticle can participate in multiple types of directional interactions. Our findings offer improved control of non-spherical nanoparticles as building blocks for the assembly of sophisticated macroscopic materials, and provide a framework to understand complementarity and directional interactions in DNA-mediated nanoparticle crystallization.

PMID:
26006002
DOI:
10.1038/nmat4293
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center