This image shows a selective actuation of the side arms of a soft robot in a horizontal uniform magnetic field. Credit: Sumeet Mishra, North Carolina State University
The ability to control the motion of soft robots, coupled with flexibility, gives them potential applications ranging from biomedical technologies to manufacturing processes. Researchers are interested in using magnetic fields to control the movement of these soft robots because it can be done remotely – the control can be exerted without physically connecting to the polymer – and because magnetic fields are easily obtained from permanent magnets and electromagnets.
A team of researchers has now found a way of embedding long chains of nanoscale magnetite particles in sheets of elastic polymer to form a magnetic polymer nanoco...
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