1. Researchers from the University of Utah have developed a method for targeted drug delivery using ultrasound to trigger drug release from nanodroplets. 2. The method involves nanocarriers made of tiny droplets with a shell of hollow polymer molecules and a core of hydrophobic perfluorocarbons mixed with the drug. 3. The study demonstrated the safety and efficiency of this method, showing no discernible negative effects in animal trials, and is ready for human testing.