Emulsification mechanism in an ultrasonic microreactor: Influence of surface roughness and ultrasound frequency.

ABSTRACT: An ultrasonic microreactor with rough microchannels is presented in this study for oil-in-water (O/W) emulsion generation. Previous accounts have shown that surface pits or imperfections localize and enhance cavitation activity. In this study cavitation bubbles are localized on the rough microchannels of a borosilicate glass microreactor. The cavitation bubbles in the microchannel are primarily responsible for emulsification in the ultrasonic microreactor. We investigate the emulsification mechanism in the rough microchannels employing high-speed imaging to reveal the different emulsification modes influenced by the size and oscillation intensity of the cavitation bubbles. The effect of emulsification modes on the O/W emulsion droplet size distribution for different surface roughness and f

SUBMITTER: Udepurkar AP 

PROVIDER: S-EPMC9945801 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature