Each year, the Alexander von Humboldt Foundation grants approximately 500 fellowships to Postdoctoral Researchers of all nationalities and disciplines from abroad to continue their research in Germany. Four AvH fellows join the Max Planck Institute for Intelligent Systems in Stuttgart.
A magnetic drive allows a tiny untethered vehicle to walk, crawl, jump and swim through a complex environment
Tiny robots need not fear obstacle courses in the future: Scientists from the Max Planck Institute for Intelligent Systems in Stuttgart have developed a minuscule, flexible robot that can master a variety of forms of movement. Its magnetic drive allows it to walk, crawl and roll through difficult terrain. Moreover, it can transport small loads and swim on and in liquids. In future, tiny robots moving in this way could transport medication specifically to where it is needed.
Scientists at the Max Planck Institute for Intelligent Systems invented a magnetically controlled soft robot only four millimeters in size, that can walk, crawl or roll through uneven terrain, carry cargo, climb onto the water surface, and even swim in it. The inspiration comes from soft-bodied beetle larvae and caterpillars, and even jellyfishes posed as biological models. One day, this small-scale robot may enable targeted drug delivery or minimally invasive surgery, the researchers hope. Its multiple locomotion capability in complex environments is so unique that science journal Nature will publish the researchers´ findings in its February edition.
New book from Metin Sitti
Progress in micro- and nano-scale science and technology has created a demand for new microsystems for high-impact applications in healthcare, biotechnology, manufacturing, and mobile sensor networks. The new robotics field of microrobotics has emerged to extend our interactions and explorations to sub-millimeter scales. This is the first textbook on micron-scale mobile robotics, introducing the fundamentals of design, analysis, fabrication, and control, and drawing on case studies of existing approaches.
Prof. Dr. Metin Sitti gives an interview on Milliyet.com.tr
Describing the work that will create micro robot revolution in health Prof. Dr. Metin Sitti has said that the cyborg system in which human cells are transferred to robots is in the process of animal experimentation ...
Swallowable biopsy robot of doom
Scientists under the lead of Metin Sitti at the Max Planck Institute for Intelligent Systems in Stuttgart have recently constructed a material system that provides dynamic self-assembly.
To be alive, biologically speaking, means to be able to breath, to eat, to drink, to grow, to age, and, perhaps, to move. Food is the energy source, and metabolism translates the stored chemical energy into biochemical energy to sustain live functions. The physical abstraction of this energy transduction by living organisms is extremely simple: it involves energy input and energy dissipation. This mechanistic view of life looks almost trivial, but to apply this type of thinking in the design of materials and material systems is non-trivial. Scientists under the lead of Metin Sitti at the Max Planck Institute for Intelligent Systems in Stuttgart have recently constructed a material system that requires continuous magnetic energy input and viscous dissipation to maintain its spatiotemporal patterns, and the term usually used to describe this type of material system in the research community is dynamic self-assembly.
Penn alumnus Zoey Davidson, now a postdoc at the Max Planck Institute for Intelligent Systems in Germany, had been experimenting with Sunset Yellow, a dye that gives Doritos and orange soft drinks their bright colors, when he accidentally spilled some of the material.
An elastic membrane covered with tiny fibres paired with a pressure differential enables a new soft gripper system with a high adhesion performance even on curved surfaces
Robots generally need a gripper that adapts to three-dimensional surfaces. Such a gripper needs to be soft to adapt to a great variety of geometries, but not too soft, as it will detach easily and not be able to bear weight for very long. Researchers working with Metin Sitti at the Max Planck Institute for Intelligent Systems in Stuttgart developed a membrane equipped with microscopic fibres inspired by the fine hairs on a gecko's foot and attached it to a suction cup-like flexible body. An internal pressure differential ensures perfect conformation of the flexible gripper to a wide variety of surfaces and equally distributes the load over the entire contact interface. As a result, the researchers suppressed load induced stress concentrations at the edges, which strongly reduced the adhesion. The gripper demonstrates a 14-times higher adhesion than grippers without this load sharing mechanism.
A new study suggests that untethered micron-scale mobile robots can navigate and non-invasively perform specific tasks inside hard-to-reach body sites. Currently being designed, fabricated, and tested at the Max Planck Institute for Intelligent Systems and Carnegie Mellon University, the first-generation microrobots will be able to deliver therapeutics and other cargo to targeted body sites, as well as to enclosed organ-on-a-chip microfluidic devices with live cells. A new two-step approach is use to provide the microrobotic devices with desirable functions. The first step uses three-dimensional (3D) laser lithography to crosslink light-responsive polymers.