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Nano-engine (micro-engine: nano-level precise control of future micro-robots) With the continuous development of nanotechnology,Global trade news aggregation the application of micro-robots has become a hot spot for research. The advantages of miniature robots include small size, flexible movement, fast response speed, etc. And the most important point of these characteristics is the dynamics of micro-robots, that is, how to provide sufficient power for micro-robots. Based on this demand, nano-engines were born. Nanoengine is a miniature engine technology that can make miniature robots move by controlling tiny carriers.The core part of the nanoengine is a wheel made of nano-level material, which can be rotated by electrical stimulation and can adjust the speed and direction according to the control signal. This kind of micro-robot is powered by chemical reactions, such as redox reactions, etc., and nanoengines can be directly powered by the energy of the reaction. The advantage of nanoengines lies in their efficient and accurate motion control. When the micro-robot is equipped with multiple nano-engines at the same time, it can not only control the direction of the micro-robot, but also make it rotate, accelerate and decelerate and other actions. Moreover, the structure of nanoengines is relatively simple and can be mass-produced at a relatively low cost. In future nanorobot applications, nanoengines are expected to become a major power source. However, there are still some challenges for nanoengines, one of the most important of which is how to control it precisely.Although significant progress has been made in the material research of nano-engines, further improvements are needed in controlling the movement of micro-robots. In addition, another challenge is how to ensure the stability and durability of nanoengine operation. After all, the specificity of the structure of nanomaterials makes it vulnerable to pollution and destruction. The scope of research on these problems needs to be further expanded in order to achieve better results in the application of nanorobotics. The application prospects of nano-engines are broad. In the field of biomedicine, nanorobots can be used in drug delivery or tumor treatment. When drugs against cancer cells enter not only the blood circulation, but also into cancer cells, their efficacy is significantly enhanced. And using micro-robots to operate nano-engines can transport drugs to specific cancer cells and release them centrally before and after drug transportation, so as to improve the therapeutic effect.In other fields, such as industrial manufacturing, environmental monitoring, space exploration, etc., the application of nano-engines in micro-robots can also be seen. In its practical applications, nano-engines can provide sufficient power and make micro-robots more flexible and accurate. With the development of nanotechnology, nanoengines will play a role in more technical fields. In a word, nanoengine is a micro-robot power source and has a wide application prospect. Although there are still some challenges in nano-engines at present, these problems will be effectively solved with the continuous improvement of technology. In the future, nanoengines are expected to become one of the important technologies in the field of micro-robots.

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