Kutcher, who was a biochemicalengineering major at Iowa before dropping out, was an investor in Skype (the second time around when it was spun out of eBay), getting recruited by Marc Andreessen.
Working independently of those large projects, bioengineers in university labs have drawn on recent advances in nanoscale lithography, miniature microscopy, genetic engineering and biochemical imaging techniques to build new tools to reveal relationships between brain cells.