A continuous peristaltic micropump using magnetic fluid

Introduces innovative results for the enhanced magnetic fluid (MF) microactuator. A reduced response time and increased diaphragm deflection are derived from a MF (N304) and the changed number of corrugations on the parylene diaphragm is optimized by FE analysis applied to the existing model. This paper also proposes a new design of peristaltic MF micropump based on the previous experiment data of the existing MF actuator for the purpose of application of 'Lab on a chip' which is the core technology of medical and biological fields. In this device, magnetic fluids are gathered in the round-shaped or polygon-shaped channels by magnetic force, which is applied by the external magnet. The concentrated MF lump can deform the parylene diaphragm and then the deformed diaphragm pushes the fluids in another microchannel.