Using Tattoo Ink to Find Cancer (video) University of Southern California Share Print E-Mail Loading video... Caption Illuminated nanoparticles move through a blood vessel to find cancer. The coloring dyes were incorporated into nanoparticles to allow for more sensitive imaging contrast when identifying cancerous cells. Credit Sean Burkitt Usage Restrictions please provide credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.