A needle-free device that uses a laser-powered jet to force medicine into the skin at high speed could one day lead to painless injections
Source:
https://www.newscientist.com/article/2236347-laser-powered-liquid-jets-could-inject-drugs-into-skin-without-needles/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home