gizmag.com - Imagine if it were possible to send tiny machines into living cells, where they could deliver medication, perform ultra-micro surgery, or even destroy the cell if needed. Well, we've recently come a little closer to being able to do so. Scientists at Pennsylvania State University have successfully inserted "nanomotors" into human cells, then remotely controlled those motors within the cells. The nanomotors are described as "rocket-shaped metal particles," and they're propelled by externally-delivered ultrasonic waves.
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