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Bio-Droplets Self-Mixing by Pattern Surface

[+] Author Affiliations
Chih-Sheng Yu, Ming-Yu Lin, Yi-Chiuen Hu, Heng-Tsang Hu, Hsiao-Yu Chou

National Applied Research Laboratories

Paper No. IMECE2005-80710, pp. 145-148; 4 pages
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Fluids Engineering
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-4219-3 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME


In this paper, we characterize a gradient of surface tension by patterning surface that containing radiative texture and hydrophobic behavior. The protein absorption is a challenge on the hydrophobic surface; we describe a method to manipulate the blood-droplet moving on the hydrophobic surface without stick effect. The phenomenon of droplet self-motion is due to hysteresis effect that triggered the droplet to move with a velocity of about 20mm/s. Mixing of two droplets is experimentally in this device and mixing time less than ten seconds.

Copyright © 2005 by ASME



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