Conventional drug delivery is often like cracking a nut with a sledgehammer. Whether the drug is swallowed, injected, inhaled, or absorbed through the skin, it ultimately diffuses to most parts of the ...

Researchers in Europe have developed a "tractor beam" made of sound waves, but don't expect any Star Trek-style starship towing just yet. Asier Marzo, a Ph.D. student at the Public University of ...

Left to right: first author Mohamed Ghanem, colleague Brian MacConaghy and co-author Adam Maxwell. (Courtesy: Center for Industrial and Medical Ultrasound/APL ...

Levitation is no longer just the realm of magicians, with engineers dabbling in ways to suspend objects in midair using magnets, heat flow or sound waves. Unfortunately, it usually only works with ...

Ultrasound has long been used for helping doctors see inside the body, but focused high frequency sound waves are offering new ways of targeting cancer. If Zhen Xu hadn't annoyed her lab mates, she ...