Interesting use. I wonder how safe it is long term, but assume the ultrasonic energy is probably kept low enough that it (presumably) won't lyse cells. I still wonder how it will affect proteins structures, etc or if it will lead to leaking through membranes of cellular structures.

It reminds me of histotripsy, which was approved for cancer therapy a few years ago. Cool ideas and it seems like the uses of ultrasonication are finally making their way outside of laboratories.