It’s not easy to transplant a whole human eye. The surgery is difficult. And the eyes themselves start to degenerate as soon as they’ve left the body. When surgeons attempted it a few years ago, the newly-transplanted eye wasn’t able to see. But researchers believe they might have a solution: a device that maintains and…
The sodium-ion battery startup went from announcing a $1.4 billion factory to filing for liquidation in just over a year. Natron’s troubled journey illustrates the challenges in making batteries in the U.S.