MTorrice writes "Heart attacks kill muscle cells called cardiomyocytes, leaving behind irreparable tissue damage. If scientists could grow cardiac tissue in the lab, they could perhaps graft patches of healthy tissue onto a patient’s damaged heart. A new carbon nanotube-studded hydrogel mimics heart tissue’s electrical and mechanical properties and serves as a scaffold for lab-grown cardiac tissue that beats spontaneously. Short video of beating tissue included."
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