Title :
Electrowetting-based actuation for microinjection
Author :
Hoshino, K. ; Triteyaprasert, S. ; Matsumoto, K. ; Shimoyama, I.
Author_Institution :
Dept. of Mechano-Inf., Tokyo Univ., Japan
Abstract :
We propose a micro pipette which has a pumping and ejecting function based on the principle of electrowetting on dielectric (EWOD). The pipette was fabricated through a simple process of depositing and patterning conductive materials and hydrophobic polymer coatings on the inside and outside of a pulled glass tube. We estimated the amount of the controllable water theoretically. The pipette was designed to pump up liquid of 50 nl at a driving voltage of 250 V. Capillary rise and depression were then observed in a fabricated pipette.
Keywords :
conducting polymers; glass; micropumps; polymer films; wetting; 250 V; capillary rise; controllable water; ejecting function; electrowetting on dielectric; electrowetting-based actuation; glass tube; hydrophobic polymer coatings; microinjection; micropipette; patterning conductive materials; pumping function; Coatings; Dielectric liquids; Electrodes; Fabrication; Glass; Microinjection; Polymer films; Pumps; Resists; Voltage;
Conference_Titel :
TRANSDUCERS, Solid-State Sensors, Actuators and Microsystems, 12th International Conference on, 2003
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7731-1
DOI :
10.1109/SENSOR.2003.1217136
