Researchers have developed a way to print nanoparticles like ink, creating inexpensive sweat sensors that can continuously monitor multiple molecules.

Her earrings weren’t the only standout jewelry moment of the evening—there was also Lady Gaga’s necklace, a never-before-seen piece from the Tiffany & Co. archives; Charlotte Lawrence and ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more We know jewelry is a hot gift item this time of year, but there's no reason you can't splurge on a new ...