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Wetting characterisation on complex surfaces by an automatic open-source tool: DropenVideo.

Raziyeh Akbari1, Federico Ambrosio1, Joseph D Berry2

  • 1Department of Materials Science, University of Milano-Bicocca, via R. Cozzi 55, 20125 Milano, Italy.

Journal of Colloid and Interface Science
|September 5, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces DropenVideo, an open-source software for automated contact angle measurement. It enhances precision and reduces bias in analyzing solid-liquid interactions for material wetting properties.

Keywords:
Contact angleDropenVideoImage analysisMATLABOpen-sourceWetting

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Area of Science:

  • Surface Science
  • Materials Science
  • Physical Chemistry

Background:

  • Understanding solid-liquid interactions is key to material wetting.
  • Contact angle hysteresis is a critical parameter for wetting properties.
  • Automated, user-independent tools are needed for accurate contact angle measurements.

Purpose of the Study:

  • Introduce DropenVideo, an open-source software for automated contact angle analysis.
  • To standardize and automate the measurement of advancing and receding contact angles.
  • To mitigate subjective bias in wetting measurements.

Main Methods:

  • DropenVideo performs frame-by-frame video analysis for contact angle determination.
  • It incorporates needle detection, contrast tuning, and data gap compensation.
  • Contact angles are calculated using convolution mask, circle, and polynomial fittings.

Main Results:

  • DropenVideo automatically identifies advancing and receding contact angles.
  • Advancing angles are averaged during drop inflation; receding angles from incipient motion during deflation.
  • Application across complex surfaces demonstrates enhanced precision and reduced subjective bias.

Conclusions:

  • DropenVideo offers a reliable, automated, and open-source solution for contact angle hysteresis measurement.
  • The software improves the precision of wetting characteristic identification.
  • It addresses challenges in interpreting wetting measurements on diverse surfaces.