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Deposition and drying dynamics of liquid crystal droplets

Author

Listed:
  • Zoey S. Davidson

    (University of Pennsylvania)

  • Yongyang Huang

    (Lehigh University)

  • Adam Gross

    (University of Pennsylvania)

  • Angel Martinez

    (University of Pennsylvania)

  • Tim Still

    (University of Pennsylvania)

  • Chao Zhou

    (Lehigh University
    Bioengineering Program, Lehigh University)

  • Peter J. Collings

    (University of Pennsylvania
    Swarthmore College)

  • Randall D. Kamien

    (University of Pennsylvania)

  • A. G. Yodh

    (University of Pennsylvania)

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).

Suggested Citation

  • Zoey S. Davidson & Yongyang Huang & Adam Gross & Angel Martinez & Tim Still & Chao Zhou & Peter J. Collings & Randall D. Kamien & A. G. Yodh, 2017. "Deposition and drying dynamics of liquid crystal droplets," Nature Communications, Nature, vol. 8(1), pages 1-7, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15642
    DOI: 10.1038/ncomms15642
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    Cited by:

    1. Hossein Zargartalebi & S. Hossein Hejazi & Amir Sanati-Nezhad, 2022. "Self-assembly of highly ordered micro- and nanoparticle deposits," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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