We are accustomed to the fact that the robot – it is something moving on by. This is true not only for unmanned drones, but also for the ingenious devices the size of amoeba, recently created by researchers at Tohoku University, Japan.
Roboameba far the smallest ever created robots (nanobots exist, ie nano-sized robots), but it is definitely one of the smallest robot, the movements can be controlled. By itself, the robot is a liquid-filled pouch from lipids, macromolecules, which include fats and waxes. Itself is made of the same mechanism and motor proteins “coupling” of the collected DNA chains. After contact with the ultraviolet light of the robot, the microtubule motor protein is pulled in the direction of photons creating movement within. It’s as if you tried to move forward, while sitting in a sturdy bubble with water. This mechanic using microscopic photosynthetic algae: light-sensitive proteins capture photons of light, and the body begins to instinctively seek to where the sun’s rays make their way through the thickness of more water to replenish the supply of energy.
To stop movement, scientists simply shine on the receptor molecule another light, and the robot stops . Thus, the man obeys tiny drop as can neither one amoeba. But, nevertheless, there are limitations. Yes, the movement is started and stopped by a team of researchers, but to preserve the program and move in strict direction at a constant speed the robot turns out not always. This is the goal for the future work, during which scientists want to try to use the asymmetrical configuration of DNA that normally respond to certain conditions, the robot can move through more reliable signaling system.
A good principle of the amoeba-robot
Creating a robot, as we have seen in roboameby, this is just the first step. Adaptation, development and proper scope of the invention – are the main challenges for the future. By the way, these robots have two important advantages: they are not only extremely easy to transport, but also well tolerated freezing and thawing.