Evaporation kinetics and morphological patterns of a bi-dispersed droplet on a hydrophobic substrate

R. Iqbal, Amy Q. Shen, A. K. Sen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report the evaporation kinetics and the morphological deposition pattern of a bi-dispersed droplet over hydrophobic PDMS substrate. Unlike hydrophilic substrate, the droplet on hydrophobic substrate undergoes a distinct evaporation kinetics, which recedes at the very early phases of evaporation and the particles present inside the droplet are driven radially inward to form a centralized deposition pattern with no particles deposited at the edge. A portion of the smaller (fluorescent) particles are deposited at the outermost edge and rest of the particles are at the center as observed under the fluorescent microscopy.

Original languageEnglish (US)
Title of host publication22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
PublisherChemical and Biological Microsystems Society
Pages401-404
Number of pages4
Volume1
ISBN (Electronic)9781510897571
StatePublished - Jan 1 2018
Event22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018 - Kaohsiung, Taiwan, Province of China
Duration: Nov 11 2018Nov 15 2018

Other

Other22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2018
CountryTaiwan, Province of China
CityKaohsiung
Period11/11/1811/15/18

Keywords

  • Bi-dispersed
  • Deposition
  • Evaporation
  • PDMS

ASJC Scopus subject areas

  • Chemistry(all)
  • Bioengineering
  • Chemical Engineering (miscellaneous)
  • Control and Systems Engineering

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