Earlier this year, researchers at Argonne National Lab demosntrated how they could use sound waves to levitate individual droplets of solutions containing different pharmaceuticals. The aim being to allow solvent to evaporate with crystallisation occurring so that an amorphous form of a drug can be produced. Amorphous drugs are often more soluble and so have a higher bioavailability than crystalline forms hinting at lower dose or greater efficacy for the same amount of product.
No magic show: Real-world levitation to inspire better pharmaceuticals | Argonne National Laboratory.
Thanks to JLVernonPhD for Twitter heads-up on this video.