IJAT Vol.3 No.5 pp. 502-508
doi: 10.20965/ijat.2009.p0502


On-Demand Production of Emulsion Droplets Using Magnetically Driven Microtool

Yoko Yamanishi, Yuki Kihara, Shinya Sakuma, and Fumihito Arai

Department of Bioenginering and Robotics, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi-ken 980-8579, Japan

June 12, 2009
July 27, 2009
September 5, 2009
μTAS, droplet dispensing, magnetically driven microtool, encapsulation, multiphase flow

We propose a hybrid polymer-metal magnetically driven microtool (MMT) featuring elasticity and rigidity. An electroplated magnetic metal axle is installed directly at the center of the MMT during molding. The result is a hybrid MMT whose fixed axes move elastically in a specific direction and whose center axle is rigid, preventing bending by unwanted external force. The axle’s higher magnetism contributes to powerful actuation. The hybrid MMT we designed provides on-demand droplet dispensation on chips. Its parallel plate is constrained translationally. Hybrid MMT displacement is 300 μm – 6 times greater than that of the conventional MMT. On-demand droplet generation produces a 177.7 ±2.3 μm droplet.

Cite this article as:
Y. Yamanishi, Y. Kihara, S. Sakuma, and F. Arai, “On-Demand Production of Emulsion Droplets Using Magnetically Driven Microtool,” Int. J. Automation Technol., Vol.3, No.5, pp. 502-508, 2009.
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Last updated on Nov. 18, 2019