Discover one of our 28 local entrepreneurial communities »
Be the first to know as we launch in new countries and markets around the globe.
Interested in bringing MIT Technology Review to your local market?
Unsupported browser: Your browser does not meet modern web standards. See how it scores »
Shown here are heart-muscle cells grown in a dish. Sodium rushing into the cells coincides with contraction (as happens during a normal heartbeat) and modulates the sensors’ fluorescence.
Video by Heather Clark, Draper
Send feedback to the editor
See all videos »