From shapeable magnetoelectronics to soft robotics with embedded magnetic cognition

Extending 2D structures into 3D space has become a general trend in multiple disciplines, including electronics, photonics, plasmonics and magnetics. This approach provides means to modify conventional or to launch novel functionalities by tailoring curvature and 3D shape. We explore the potential of these 3D magnetic architectures for the realization of mechanically shapeable magnetoelectronics [Makarov et al., Appl. Phys. Rev. 3, 011101 (2016)] for automotive applications [Melzer et al., Adv. Mater. 27, 1274 (2015)], point-of-care diagnostics [Lin et al, Lab Chip 14, 4050 (2014)], virtual and augmented reality appliances [Canon et al., Nature Electronics 1, 589 (2018) & Science Advances 4, eaao2623 (2018); Granell et al., npj Flexible Electronics 3, 3 (2019)]. Combining compliant magnetic field sensors with soft (magnetic) actuators allows realizing ultrafast soft robots with embedded cognition and feedback. These developments pave the way towards intelligent soft robots, autonomous and responsive soft devices, and novel human-machine interfaces.