Created robot microbe moving within the blood vessel
Never forget that the robots - it's not just four-legged mechanisms like SpotMini, which are able to open doors and perform various stunts. Besides them, the engineers have also developed mechanisms, which due to their tiny size can move within living organisms and deliver drugs in hard to reach places. Researchers from the Polytechnic School of Lausanne and Zurich Technical High School created a germ-robot that adapts to different types of liquids and can even float in the blood vessels.
The lead author of the project Selman Sakar said that the establishment of the outer structure of the robot are based on the principles of kirigami - the Japanese art of making figures using paper and scissors. Due to its flexible construction, the robot is able to move even within narrow blood vessels without any loss of speed.
Our robot has a special composition and structure, which allows it to adapt to the characteristics of the fluid through which it moves. For example, if he is faced with a change in the viscosity or concentration of dissolved particles, it changes its shape to maintain the speed and maneuverability, without losing control over the direction of movement.
Robot microbe is made from a nanocomposite material filled with closely related polymer network - that is what gives it a special elasticity. Rather than equip it with sensors and a fairly large battery, the researchers have adopted magnetic nanoparticles that react to changes in electric fields. This gave them the opportunity to program robots for deformation.
In nature, a host microorganism that change shape with changes in environmental conditions. This principle inspired us to the development of micro-robots.
The researchers stressed that, thanks to a minimum of necessary components, the manufacture of such robots cost is very cheap. They intend to continuously improve their design so that they can move around as much as complex fluids.
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