Title :
An ultrasound-actuated micropump that uses nanoporous one-way membrane as nozzle-diffuser
Author :
Chao, Chen ; Cheng, Ching-Hsiang ; Liu, Zongbin ; Yang, Mo ; Leung, Wallace W F
Author_Institution :
Res. Inst. of Innovative Products & Technol. (RIIPT), Hong Kong Polytech. Univ., Kowloon
Abstract :
In this paper, we study a nozzle-diffuser micropump that is actuated by ultrasound waves. The nozzle-diffuser is made of a nanoporous one-way membrane. The micropump was formed by enclosing the nanoporous membrane into a PMMA small chamber. Once immersed into ultrasonic water bath, the pump can continuously pump the water through the one-way membrane. This device is ideal for future implantable drug release system that can be remotely controlled by ultrasound waves.
Keywords :
bioMEMS; biomedical ultrasonics; drug delivery systems; nanobiotechnology; nozzles; PMMA small chamber; implantable drug release system; nanoporous one way membrane; nozzle diffuser; ultrasonic water bath; ultrasound actuated micropump; ultrasound waves; Biomembranes; Fabrication; Fluid flow; Micropumps; Microvalves; Nanoporous materials; Piezoelectric actuators; Pumps; Ultrasonic imaging; Voltage; Corner Reflection; Multipath Interference; Ultrasonic Ranging;
Conference_Titel :
Ultrasonics Symposium, 2008. IUS 2008. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2428-3
Electronic_ISBN :
978-1-4244-2480-1
DOI :
10.1109/ULTSYM.2008.0126
