Title :
Emulsion generation using microchannel plates and 2.25 MHz ultrasonic vibrators
Author :
Kanda, Takefumi ; Harada, Takuya ; Tominaga, Yoshiyuki ; Suzumori, Koichi
Author_Institution :
Grad. Sch. of Natural Sci. & Technol., Okayama Univ., Okayama, Japan
Abstract :
The aim of this research is to realize a small continuous flow system with emulsification devices. This system is for the generation of sub-micron or nano size monodisperse emulsions. We have fabricated and evaluated a device which consists of a microchannel plate and an ultrasonic vibrating plate. The oscillating frequency was 2.25 MHz. We have succeeded in generating emulsions which have a diameter of 200 nm. This device can realize continuous flow system and those plates are easily stacked. We also designed the cross-sectional pattern of microchannel of ultrasonic device to increase the residence time effectively. As a result, we have succeeded in obtaining emulsions which have a diameter of 80 nm.
Keywords :
emulsions; fluid oscillations; microchannel flow; microchannel plates; two-phase flow; ultrasonic devices; cross-sectional pattern; emulsification devices; frequency 2.25 MHz; microchannel plates; nanosize monodisperse emulsion generation; oscillating frequency; residence time; size 200 nm; size 80 nm; small continuous flow system; submicron monodisperse emulsion generation; ultrasonic device; ultrasonic vibrating plate; ultrasonic vibrators; Acoustic devices; Finite element methods; Microchannel; Production; Ultrasonic variables measurement; Vibrations;
Conference_Titel :
Ultrasonics Symposium (IUS), 2010 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-0382-9
DOI :
10.1109/ULTSYM.2010.5935639
