In experimental animals, a team of nanotechnology engineers and heart surgeons in Taiwan have used hematopoietic stem cells and a self-assembling peptide nanofiber hydrogel to repair myocardial damage after an infarction.  The nanofiber allows the stem cells to adhere in the damaged muscle, which otherwise would wash out with blood flow.  The results are quite astonishing.  At present, myocardial infarction kills about 17 million people world wide.             MORE