I once worked on MRI conditional robotic devices. A difficulty in the field was how to actuate these robots. We worked on developing plastic electric (or photon

I once worked on MRI conditional robotic devices. A difficulty in the field was how to actuate these robots. We worked on developing plastic electric (or photonic) motors. Although not quite there, it is a technology that once ready will help the field quite a bit: https://link.springer.com/chapter/10.1007/978-3-030-59773-3_12 https://link.springer.com/chapter/10.1007/978-3-030-59773-3_...