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MULTIPHASE MICROFLOW MAPPING via DEFOCUSING micro-PTV

  • Evan Lammertse
  • , Nikhil Koditala
  • , Martin Sauzade
  • , Hongxiao Li
  • , Jun Kong
  • , Eric Brouzes
  • Stony Brook University
  • Georgia State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We use a defocusing-based micro-particle tracking velocimetry (µPTV) technique to map the 3D recirculation flow inside microfluidic droplets. We compare a deep learning model to cross-correlation to predict the Z-level, or depth, and report metrics of accuracy and precision. We implement regression models that output continuous Z-levels to improve the Z-resolution. These flow maps reveal fine topological detail of the droplets' recirculation flows and demonstrate the power of our method to precisely quantify 3D microflows.

Original languageEnglish
Title of host publicationMicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages1015-1016
Number of pages2
ISBN (Electronic)9781733419031
StatePublished - 2021
Event25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2021 - Palm Springs, Virtual, United States
Duration: Oct 10 2021Oct 14 2021

Publication series

NameMicroTAS 2021 - 25th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Conference

Conference25th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2021
Country/TerritoryUnited States
CityPalm Springs, Virtual
Period10/10/2110/14/21

Keywords

  • deep learning
  • Droplet microfluidics
  • machine learning
  • particle tracking
  • PIV
  • PTV

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