Nano-Heart

 Northwestern University chemist Samuel Stupp has used nanotechnology - specifically molecules called peptide amphiphiles - to help heal heart damage in mice. The scientists induced heart attacks in the mice, then injected them with the peptide amphiphiles (modified to bond with a protein called heparin). The nanofibers collected at the site of the injury and helped speed the body's natural healing, according to researchers. Within a month, the injured mice were virtually on par with the healthy mice. The procedure seems to have also helped healing in rabbits, though obviously whether a similar procedure would be significant in aiding human healing will require more testing.