Lollipop oral sensor will have your child excited for a checkup

Saliva can provide a plethora of valuable information about our health. Scientists can even use it to detect signs of heart failure. But let’s be honest: medical tests, even something as simple as saliva collection, aren’t much fun, especially for kids. Now, researchers at the University of Southern California have come up with a way to make medical testing a little less of a bitter experience – quite literally.

Lollylab is a lollipop-inspired device that packs a miniature laboratory inside. It consists of two plastic pieces with stems and rounded tops that snap together. The rounded head has small holes, while the glass-fiber stem is lined with paper. Saliva enters through the holes, flows down the stem, and reaches a graphene sensor at the bottom of the device in about 60 seconds.

But what’s this tiny laboratory looking for? It’s targeted at acetaminophen, a common ingredient in painkillers and...

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