links for 2009-06-24

• Thread made of crab shell and polyester can stitch together broken nerves
  "A nerve guide requires very strict conditions. It needs to be biocompatible, stable in solution, resistant to collapse and also pliable, so that surgeons can suture it to the nerve," said lead author Miqin Zhang, a professor of material science and engineering, "This turns out to be very difficult."
  (tags: technology health nerves surgery)