Scientists have created a temporary tattoo that can detect if a drink has been spiked with just a couple drops. The sticker, which is applied to the skin, can detect the presence of the drug ...

The tattoo is made from a gel that includes a chemical receptor that changes color when it comes into contact with a common ...

Researchers in South Korea have developed a rapid-acting test for drugs in drinks that’s worn on the skin using a tattoo-like sticker.