A 21-year-old junior at Johns Hopkins is building computer models that mimic electrical activity in the heart, showing patterns that can have fatal consequences. When Alok Sathaye's models are ...

Highly sensitive sensors have been successfully used to map the electrical activity of the developing heart in embryos, scientists report. The study could lead to new insight into how heart rhythm ...

When graphene was first developed, it was hailed as a revolutionary material but its potential uses seemed unclear to many people. Graphene is made of a single layer of carbon atoms that form a ...