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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