Your next tattoo could be invisible
![Your next tattoo could be invisible](https://www.podcastworld.io/podcast-images/marketplace-tech-7p4z9mb7.webp)
According to the Pew Research Center, about one-third of Americans have at least one tattoo. Most get one to honor someone or make a statement. But a nanoengineer in Colorado, a tattoo artist to the stars and a former doctoral student have long-term hopes for smart tattoos with a health purpose. They’re starting with ink that can appear and disappear with different kinds of light.