Nano-engineers from the University of California, San Diego have developed bio-inks that can turn regular ballpoint pens into chemical sensors.
Among other things, people can measure glucose levels simply by drawing on skin with the engineered ink. According to CNN Money, it works like this:
Larry at The Gadgeteer recently shared a photo of his everyday-carry set, and I was particularly intrigued by one piece that seems perfect for pen people.
Ever wondered how the desk gets so untidy when you spend most of your time staring at a computer? Me too, when it comes to having a clear up those creative souls or DIYer’s amongst us may choose to recycle old jars, unused mugs or make use of other objects around the house, with so many different pens & paint markers around you could always create a bespoke piece to cram into a dark idle corner. Alternatively there’s always the local stationers, DIY or charity shop to visit.
So I was tooling around online and saw this headline. Naturally, it begged for some clarification, like where was this published, was it a joke, and just how invisible are these pens?
Fortunately, it didn’t take much digging to get some answers. Turns out that this ran in the Columbus Dispatch in Columbus, Ohio about four years ago, and it wasn’t a joke. Shoppers really were having a hard time finding invisible ink pens.
Had to share this for the parents among you.
Apparently, a little girl in California named Gabriella got her hands on a Sharpie and started drawing on her face.
Of course. Because, you know, why not?
Her mother saw it and, this being 2015, decided to start filming while she scolds the girl.