Deposition and drying dynamics of liquid crystal droplets

Zoey S. Davidson, Yongyang Huang, Adam Gross, Angel Martinez, Tim Still, Chao Zhou, Peter J. Collings, Randall D. Kamien, A. G. Yodh

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Drop drying and deposition phenomena reveal a rich interplay of fundamental science and engineering, give rise to fascinating everyday effects (coffee rings), and influence technologies ranging from printing to genotyping. Here we investigate evaporation dynamics, morphology, and deposition patterns of drying lyotropic chromonic liquid crystal droplets. These drops differ from typical evaporating colloidal drops primarily due to their concentration-dependent isotropic, nematic, and columnar phases. Phase separation occurs during evaporation, and in the process creates surface tension gradients and significant density and viscosity variation within the droplet. As a result, the drying multiphase drops exhibit different convective currents, drop morphologies, and deposition patterns (coffee-rings).

Original languageEnglish (US)
Article number15642
JournalNature communications
Volume8
DOIs
StatePublished - May 30 2017

All Science Journal Classification (ASJC) codes

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

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