08 January 2014
Vol 6, Issue 218

About The Cover

Cover image expansion

ONLINE COVER Cardiovascular Glue. A torn vessel or a defect in the heart itself may soon be mended by a light-activated polymer that either glues a patch to the tissue's surface (as shown on the cover) or fills the damaged area itself. In this week's issue, Lang and colleagues describe this water- and blood-resistant surgical glue and demonstrate its application in high-pressure pig blood vessels and in live, beating pig hearts. The glue is nontoxic, biocompatible, and cures rapidly, making it a promising light-activated sealant for use soon in people. [CREDIT: R. MCKENZIE/MCKENZIE ILLUSTRATIONS]