B.B.C. Article
For the first time, scientists have placed tiny motors inside living human cells and steered them magnetically.
The advance represents another step towards molecular machines that can be used, for example, to release drugs into specific locations within the body.
There is interest in the approach because it could enhance the benefits of drugs while minimising side effects.
The rocket-shaped metal particles were propelled using ultrasound pulses.
Materials scientist Prof Tom Mallouk, from Penn State University, and colleagues have published their research in the journal Angewandte Chemie International Edition.

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