瑞典研究人员开发出微米尺寸光驱动齿轮

Core Insights - A research team led by the University of Gothenburg has developed a light-driven micro gear with a diameter of only a few micrometers, paving the way for micro motor systems at the micron scale [1][2] - The new method utilizes standard photolithography to create silicon-based micro gears with optical metasurfaces, overcoming previous limitations in size [1] - The light-driven gears can rotate independently or form a gear transmission system, offering advantages such as no fixed contact with machines and ease of control [1] Industry Implications - This breakthrough provides a new approach to micro-nano scale mechanical dynamics, potentially leading to the smallest microchip motors ever made [2] - Future applications of these gears could see them reduced to sizes between 16 to 20 micrometers, comparable to human cell sizes, with significant prospects in the medical field [2] - Potential uses include micro pumps for regulating fluid flow within the human body, optical manipulation, particle handling, and the development of microfluidic chip laboratory systems [2] Research Publication - The related research paper has been published in the international academic journal "Nature Communications" [3]