Researchers Develop Regret-Free Tattoo

From LiveScience.com:

Scientists develop tattoos that make it easier to change your mind. Love doesn't always last a lifetime, but it can tattoo the body forever. For anyone who worries they might one day be jilted or might eventually want their cryptic body symbols removed, there's a new tattoo process that can be permanent or removed at the wearer's discretion. The technique had been developed to make consumer products such as aspirin and cake mix. The process, in which particles are suspended in a biodegradable polymer coating, is called microencapsulation. The resulting microcapsules—some as small as the point of a pin—can carry any molecule that needs protection or controlled release. Microencapsulation is widely used to produce plant food, stain remover, and even scratch-and-sniff perfume ads: scratch the treated paper and microbeads burst to release the scent.

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