A group of engineers from Stanford University have created a tiny amphibious robot. The device is based on
Origami technique is not the first time used forcreating robots. For example, Hi-Tech has already written about the development of a caterpillar robot for endoscopy and biopsy by the same group of scientists. The advantage of the new robot is its ability to adapt to different environments. This device can, as the researchers show in their work, move quickly over smooth and uneven surfaces of an organ and float in body fluids.
Video: Zhao Lab, Stanford University
According to the researchers, the lack of mostmodern miniature origami robots in that they require separate devices to control movement and perform their function, such as drug delivery. The authors of the "amphibian" designed their device in such a way that the shape of the device would not only be responsible for movement, but also perform useful tasks.
Engineered structure allowsthe robot in the "disassembled" state is easy to move on various surfaces. And having reached its goal, the "amphibian" folds like an accordion and squeezes out medicines. As the researchers note, this approach allows minimizing the size of the device by eliminating any additional modules. The smaller the robot, the less invasive the medical procedure will be, the developers add.
Video: Zhao Lab, Stanford University
The second universal construction mechanism:combination of geometric elements. As the creators explain, a longitudinal hole in the center of the robot and side slots located on the sides at an upward angle reduce water resistance and help the robot swim better. And these same mechanisms are used to absorb the "load".
This design creates a negative pressure inrobot for fast swimming and at the same time provides suction in the process of loading and transporting cargo. We take full advantage of the geometric features of this little robot and work towards a uniform structure for various applications and functions.
René Zhao, Stanford University mechanical engineer and research leader
Now the new development is going through the stagepreliminary tests for medical use. The researchers plan to move soon to live animal testing prior to clinical trials.
Cover image: Zhao Lab, Stanford University
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