To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S4. The transplanted heart within the recipient rat’s abdomen is viable and contractile 5 d after transplantation. Living myofibroblast–silicon composites for probing electrical coupling in cardiac systems Menahem Y. Rotenberg, Naomi Yamamoto, Erik N. Schaumann, Laura Matino, Francesca Santoro, and Bozhi Tian PNAS. 2019. 116:22531-22539 DOI: 10.1073/pnas.1913651116 Download Original Video Browse All Videos »