Max Planck Intelligent Systems Colloquium, Stuttgart

9883 1494834574

Wettability of surfaces - patterning principles and applications in microassembly

  • Date: May 24, 2017
  • Time: 11:00
  • Speaker: Dr. Ville Liimatainen, Department of Electrical Engineering and Automation, School of Electrical Engineering, Aalto University, Finland
  • Location: MPI IS Stuttgart, Heisenbergstr. 3
  • Room: 3P 2
  • Host: Prof. Dr. Metin Sitti, Managing Director, Max Planck Institute for Intelligent Systems
  • Contact: officesitti@is.mpg.de

Abstract:

A plethora of techniques exist today for tuning the wettability of surfaces, varying from dry etching and wet chemical processes to energetic beam based methods and nanocoatings. Besides global wettability modification techniques, the ability to create well-defined microscopic wetting patterns is becoming increasingly important for applications in physical, chemical, as well as in biological systems. Another challenge is limiting the wetting of low surface tension liquids, such as oils and solvents, which easily spread on most surfaces. This talk presents microscopic wettability patterning methods, both for water and low surface tension liquids. Applications of wetting patterns in surface tension-driven self-alignment, for accurate assembly of microparts, will also be discussed.


Short bio:

Dr. Ville Liimatainen is a postdoctoral researcher in the Micro- and Nanorobotics group lead by Prof. Quan Zhou at Aalto University, Finland. He obtained his PhD from Aalto University in early 2017, and will be joining the Physical Intelligence Department of Prof. Sitti in the fall. His research is focused on wetting phenomena and wettability characterization, the design and fabrication of surfaces with special wetting properties, and their application to physical processes in microsystems.


 
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