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Inorganic Nanomembranes:
From imperceptible magnetoelectronics to hybrid micro-biomotors
Oliver G. Schmidt
Leibnitz Institute IFW-Dresden, Germany
Nanomembranes are thin, flexible, transferable and can be shaped into 3D micro- and nanoarchitectures. This makes them attractive for a broad range of applications and scientific research fields ranging from flexible imperceptible magnetoelectronic devices to ultra-compact autonomous micro- and micro-biorobotic systems. In the former case, giant magnetoresistive nanomembranes are employed on ultrathin and ultra-lightweight PET foils to realize an on-skin touch-less human-machine interaction platform providing motion and displacement sensorics applicable for soft robots or functional medical implants as well as magnetic functionalities for epidermal electronics. These ultrathin magnetic sensors with extraordinary mechanical robustness might be ideally suited to be wearable, yet unobtrusive and imperceptible for orientation and manipulation aids.
If nanomembranes are differentially strained they deform themselves and roll-up into tubular structures upon release from their mother substrate. Rolled-up nanomembranes can be exploited to rigorously compact electronic circuitry, energy storage units and novel optical systems.
If appropriate materials are chosen, rolled-up tubes act as tiny catalytic jet engines which in the ultimate limit may drive compact multifunctional autonomous systems for medical and environmental applications. If magnetic tubes are combined with flagella-driven sperm cells, such hybrid micro-biorobots offer new perspectives towards artificial reproduction technologies.
Oliver G. Schmidt is a Director at the Leibniz Institute for Solid State and Materials Research Dresden, Germany, and holds a full Professorship for Material Systems for Nanoelectronics at the Chemnitz University of Technology, Germany. His scientific activities bridge across interdisciplinary research fields, ranging from magnetoelectronics and nanophotonics to energy storage and microrobotics. He has received several awards: the Otto-Hahn Medal from the Max-Planck-Society in 2000, the Philip-Morris Research Award in 2002 and the Carus-Medal from the German Academy of Natural Scientists Leopoldina in 2005. In 2010, he was awarded the Guinness World Record for the smallest man-made jet engine. Most recently, he received the International Dresden Barkhausen Award 2013 for his work on “Materials, Architectures and Integration of Nanomembranes'.