Crystallization of DNA-coated colloids

Yu Wang, Yufeng Wang, Xiaolong Zheng, Étienne Ducrot, Jeremy S. Yodh, Marcus Weck, David J. Pine

Research output: Contribution to journalArticle

Abstract

DNA-coated colloids hold great promise for self-assembly of programmed heterogeneous microstructures, provided they not only bind when cooled below their melting temperature, but also rearrange so that aggregated particles can anneal into the structure that minimizes the free energy. Unfortunately, DNA-coated colloids generally collide and stick forming kinetically arrested random aggregates when the thickness of the DNA coating is much smaller than the particles. Here we report DNA-coated colloids that can rearrange and anneal, thus enabling the growth of large colloidal crystals from a wide range of micrometresized DNA-coated colloids for the first time. The kinetics of aggregation, crystallization and defect formation are followed in real time. The crystallization rate exhibits the familiar maximum for intermediate temperature quenches observed in metallic alloys, but over a temperature range smaller by two orders of magnitude, owing to the highly temperaturesensitive diffusion between aggregated DNA-coated colloids.

Original languageEnglish (US)
Article number7253
JournalNature Communications
Volume6
DOIs
StatePublished - Jun 16 2015

Fingerprint

Colloids
Crystallization
colloids
deoxyribonucleic acid
crystallization
DNA
Temperature
Self assembly
Freezing
Free energy
temperature
Melting point
self assembly
Agglomeration
free energy
melting
coatings
Coatings
Defects
Crystals

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this

Wang, Y., Wang, Y., Zheng, X., Ducrot, É., Yodh, J. S., Weck, M., & Pine, D. J. (2015). Crystallization of DNA-coated colloids. Nature Communications, 6, [7253]. https://doi.org/10.1038/ncomms8253

Crystallization of DNA-coated colloids. / Wang, Yu; Wang, Yufeng; Zheng, Xiaolong; Ducrot, Étienne; Yodh, Jeremy S.; Weck, Marcus; Pine, David J.

In: Nature Communications, Vol. 6, 7253, 16.06.2015.

Research output: Contribution to journalArticle

Wang Y, Wang Y, Zheng X, Ducrot É, Yodh JS, Weck M et al. Crystallization of DNA-coated colloids. Nature Communications. 2015 Jun 16;6. 7253. https://doi.org/10.1038/ncomms8253
Wang, Yu ; Wang, Yufeng ; Zheng, Xiaolong ; Ducrot, Étienne ; Yodh, Jeremy S. ; Weck, Marcus ; Pine, David J. / Crystallization of DNA-coated colloids. In: Nature Communications. 2015 ; Vol. 6.
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