A team of researchers at the Wyss Institute of Biologically Inspired   
   Engineering at Harvard University has found a way to self-assemble complex   
   structures out of bricks smaller than a grain of salt. The new method could   
   help solve one of the major    
   challenges in tissue engineering: creating injectable components that   
   self-assemble into intricately structured, biocompatible scaffolds at an   
   injury site to help regrow human tissues.    
      
    Read more at: http://phys.org/news/2013-09-programmable-dna-tin   
   -gel-bricks.html   
      
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