Excerpts from news
The lenses use a minuscule glucose sensor and a wireless transmitter to help those among the world’s 382 million diabetics who need insulin keep a close watch on their blood sugar and adjust their dose.
The contact lenses were developed during the past 18 months in the clandestine Google X lab that also came up with a driverless car, Google’s Web-surfing eyeglasses and Project Loon, a network of large balloons designed to beam the Internet to unwired places.
The device looked like a typical contact lens when Otis held one on his index finger. On closer examination, sandwiched in the lens are two twinkling glitter-specks loaded with tens of thousands of miniaturized transistors. It’s ringed with a hair-thin antenna.
“It doesn’t look like much, but it was a crazy amount of work to get everything so very small,” Otis said at Google’s Silicon Valley headquarters. It took years of soldering hair—thin wires to miniaturize electronics, essentially building tiny chips from scratch, to make what Otis said is the smallest wireless glucose sensor ever made.
The Google team built the wireless chips in clean rooms, and used advanced engineering to get integrated circuits and a glucose sensor into such a small space.