Quantum tunneling pushes the limits of self-powered sensors
Using quantum tunneling, the lab of Shantanu Chakrabartty, at the McKelvey School of Engineering at Washington University in St. Louis, has developed self-powered sensors that can run for more than a year.
Tiny sensor takes measure of nanoparticles
A tiny sensor that exploits the same physics as the whispering gallery in St. Paul’s Cathedral in London will help make nanotechnology safer.