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Scientists at Penn State University have successfully controlled tiny nanomotors inside living human cells. Consisting of tiny, rocket-shaped bits of metal, the nanomotors were propelled by ultrasonic waves and steered with magnets. Researcher Tom Mallouk wasnt afraid to talk up potential future applications, saying that the technology could one day be used to treat cancer and other diseases by mechanically manipulating cells from the inside. Once inside a living cell, the nanomotors could pulverize the cells contents like an egg beater or just break the cells membrane, Penn States note about the research says, which could allow for targeted attacks on specific cells. More importantly, Mallouk says that the nanomotors were able to move independently of one another, instead of the whole mass of them going in one direction.