A Harvard trained Chinese scientist just found a unique chemical mixture that allows us to freeze and thaw brain tissue without damaging it. They even brought the cells back to life.A Harvard trained Chinese scientist just found a unique chemical mixture that allows us to freeze and thaw brain tissue without damaging it. They even brought the cells back to life. A Harvard trained Chinese scientist just found a unique chemical mixture that allows us to freeze and thaw brain tissue without damaging it. They even brought the cells back to life. Science & tech Articles | Mail Online