Recently, Prof. Tian Xiaojun and his research team at Shenyang Institute of Automation, Chinese Academy of Sciences, designed a miniature flexible swimming robot that is 2.6 cm long and only driven and controlled by light. It does not require wireless communication equipment and batteries. Relevant research results published online December 4 Natural Publishing Group's "Science Report".
Usually the robot needs to be composed of complex wireless communication parts, electronic equipment and energy storage equipment, and these devices limit the degree of robot miniaturization. In an attempt to find an alternative, Tian Xiaojun and his research team designed a miniature, flexible swimming robot that is made of a UV-sensitive film containing azobenzene chromophore polymers that not only swims in the water, but also Carry the goods.
Using cyclical flashing ultraviolet light and white light, researchers manipulated the flagella of the robot to swing back and forth, pushing the robot forward in a glass filled liquid tube. The researchers compared a film containing an azobenzene chromophore polymer to a robot's "motor," alternating the work of ultraviolet light and white light into a robot's "power and signal line."
In the meantime, researchers used another set of optical signals to control the robot's head gripper, which commands the robot to grab and carry the load by controlling the optical signals. In order to avoid mutual interference of two optical paths, researchers designed two vertically crossed light source systems, which control the flagella to swing on a horizontal plane with a horizontal light source, and control the opening and closing of the clamper with a light source of a vertical plane.
Tian Xiaojun introduction, this remote light-driven approach to achieve a complex drive control micro-robot structure, making the future to design and manufacture of smaller robots. Because this method does not require batteries, information processing units or motors and gearing, the researchers plan to get such micro-robots into the human bloodstream in the medical field in the future to clear blood vessels, blood clots, etc. or to allow the micro-robots to carry drugs through blood vessels into the cancer Regional fixed-point treatment.
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