Ultrasound propulsion of micro-/nanomotors

Abstract Synthetic micro-/nanomachines, which are able to mimic the amazing natural system, can convert energy source into movement, and are expected to help humanity complete environmental and biological tasks. Ultrasound, with major advantages of on-demand motion control, long lifetime, noninvasive, contact free, and great biocompatibility, have been one of the most probable potential toward in vivo drug delivery and clinical diagnosis. In present short review, we intent to summarize the progress in using ultrasound to control and propel micro-/nanomachines during the last decade, and discussed the important aspects toward biomedical applications.