"...when you have wires everywhere and the baby is tethered to a bed, it's really hard to make skin-to-skin contact."

A new sensor offers a way to monitor blood flow after surgery without wires or batteries.

Cotton biofuel cells could provide a continuous charge for the batteries in implantable medical devices like pacemakers.

The catheter will allow surgeons to perform minimally invasive procedures with higher levels of precision and lower risk of injury, researchers say.