biostudies-literatureUnknown127(30)Salinas GRotation is an interesting type of motion that is currently involved in many technological applications. In this frame, different and sophisticated external stimuli to induce rotation have been developed. In this work, we have designed a simple and original self-propelled bimetallic Janus rotor powered by the synergy between a spontaneous electric and ionic current, produced by two coupled redox reactions, and a magnetic field, placed orthogonal to the surface of the device. Such a combination induces a magnetohydrodynamic vortex at each extremity of the rotor arm, which generates an overall driving force able to propel the rotor. Furthermore, the motion of the self-polarized object can be controlled by the direction of the spontaneous electric current or the orientation of the external maThe journal of physical chemistry. C, Nanomaterials and interfaces14704-14710https://www.ebi.ac.uk/biostudies/studies/S-EPMC10405271biostudies-literatureSelf-Sustained Rotation of Lorentz Force-Driven Janus Systems.PMC10405271Salinas GKuhn AArnaboldi SfalseSelf-Sustained Rotation of Lorentz Force-Driven Janus Systems.Rotation is an interesting type of motion that is currently involved in many technological applications. In this frame, different and sophisticated external stimuli to induce rotation have been developed. In this work, we have designed a simple and original self-propelled bimetallic Janus rotor powered by the synergy between a spontaneous electric and ionic current, produced by two coupled redox reactions, and a magnetic field, placed orthogonal to the surface of the device. Such a combination induces a magnetohydrodynamic vortex at each extremity of the rotor arm, which generates an overall driving force able to propel the rotor. Furthermore, the motion of the self-polarized object can be controlled by the direction of the spontaneous electric current or the orientation of the external ma2023-01-01T00:00:00Z2023 Aug2025-04-27T00:12:04.469Z2025-02-19T00:27:16.587ZS-EPMC104052713755454910.1021/acs.jpcc.3c01597