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.

Volume Subject Area:
Fluids Engineering
Topics:
Drops, Absorption, Blood, Proteins, Surface tension, Texture (Materials)
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