Surface acoustic wave atomization of fluids to form microdroplets and nanoparticles. See Alvarez, Friend, Yeo: Langmuir, 24:10629, 2008; Alvarez, Yeo, Friend: Nanotechnology, 19:455103, 2008; Alvarez, Yeo, Friend: Biomicrofluidics, Accepted 25 November 2008; and Qi, Yeo, Friend: Physics of Fluids, 20:074103, 2008.
I'd imagine the frequency is in the megahertz range...somewhere between 7 and 15 megahertz.
douro20 1 year ago