Stanford researchers create light inside the body using ultrasound
Researchers at Stanford have demonstrated a method to deliver precise points of light anywhere in the body without a single incision.
This noninvasive method could replace invasive procedures such as surgical implants or optical fiber insertions.
Published in Nature Materials on April 13, the study outlines a “light on demand” system that uses ultrasound to trigger light emission from within the bloodstream.
Ultrasound activation
Light is becoming a powerful tool for healing and brain research, but it has one major flaw.
Light doesn’t travel well through skin. Try holding a flashlight to your palm, and you’ll see a dull red glow, but nothing more; the dense forest of cells, fat, and bone acts like a brick wall for photons.
The inability of light to penetrate deep tissu...










