| abstract |
Herein is described a process for producing microbubbles, the process comprising passing a first fluid medium through a first capillary, passing second fluid medium through a second capillary, such that the first fluid medium and second fluid medium meet at a junction and form microbubbles having a core of the first fluid medium and a shell of the second fluid medium, the microbubbles then flowing along an exit capillary, wherein a DC voltage and a superimposed AC voltage are applied to the exit capillary and microbubbles then exit the exit capillary. |