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Dr. Jeremy Mao, a research physician at Columbia University, has developed a technique for regrowing teeth in a patient's mouth. An animal-model study has shown that by homing stem cells to a scaffold made of natural materials and integrated in surrounding tissue, there is no need to use harvested stem cell lines, or create an environment outside of the body (e.g., a Petri dish) where the tooth is grown and then implanted once it has matured.
"Mutations are the driving force of evolution. We have crossbred the genetically modified mice for generations to see what would happen," the lead researcher, Arikuni Uchimura said. "We checked the newly born mice one by one ...
Silicon Valley robotics company Willow Garage is announcing today that it has sold PR2 robots to four institutions in Korea, France, and the United States. These are the first PR2 units sold by the company, which hopes to make the robot a common platform that users in academia and industry can tinker with and improve, sharing their results and accelerating the development of applications. Willow Garage , based in Menlo Park, Calif., has become the leading proponent of open source robotics. It has developed an open source software platform called ROS, or Robot Operating System , that is becoming widely adopted around the world, running not only on the PR2 but also on a variety of robots .