The heart is a near-universal symbol of love and one of the most vital organs in the body. Now, to better understand the inner workings of the heart, scientists have recreated the organ's biology in a device the size of a credit card.
The new "heart-on-a-chip" device, developed by a team from the National Institute of Standards and Technology (NIST), mimics the interactions of cells within a human heart. The researchers say the technology could be used to study heart disease, which is the leading cause of death in the U.S.
