Not the person you asked, but I think 'bubblology' (thank you for that word by the way) would have relevance in micro-fluidics, which relates to lab-on-a-chip applications and microbiology and cellular biology. It may also have mechanical engineering relevance through hydro-dynamics in (micro-)pumps, injectors, and carburetors. Maybe even drug delivery systems.

Edit: and according to this link it's also very useful for water aeration, which is needed for hydroponics, hydro-culture, and general water treatment.
In general for nano: lots of surface interaction, so great if you want to a lot of chemical or physical interaction between your nano-something and whatever substance you put it in.