A laser that generates a high-speed jet of liquid to push medicines into the skin could one day give people painless, needle-free injections.
Pankaj Rohilla and Jeremy Marston at Texas Tech University tested their laser-powered liquid jet on skin-like material and pig skin, with promising results. They say it could be an alternative to conventional injections, provided they can show it works on human skin too.
The device focuses a laser beam at a liquid in a glass tube. A small portion of the liquid rapidly heats …
We clarified where liquid has been injected into pig skin.