“光流”3D微纳制造可用多种材料为开发微型机器人提供新路径

Core Insights - The article discusses a new 3D micro-nano manufacturing technology developed by researchers from the Max Planck Institute for Intelligent Systems and the National University of Singapore, which utilizes light fluid effects to enable the use of various materials for creating micro-robots [1][4] Group 1: Technology Overview - The new technology allows for the use of metals, metal oxides, carbon materials, and semiconductors, moving beyond the traditional polymer limitations of existing methods [1] - This 3D micro-nano manufacturing can create structures finer than human hair, with applications in medical, robotics, and microelectronics fields [1] - The core innovation involves using femtosecond lasers to precisely control light fluid effects, guiding nano or micron-sized particles for 3D self-assembly [1][4] Group 2: Manufacturing Process - The micro-molds function like miniature "cake molds," allowing particles to flow through small openings and accumulate into desired shapes, with high design freedom for complex structures [2] - After assembly, post-processing removes the polymer mold, resulting in independent microstructures made entirely of the target material [2] Group 3: Applications and Future Potential - The research team successfully created various functional micro-devices, including a micro-filter valve for particle separation and multifunctional micro-robots that can be driven by light or magnetic fields [3] - The "light flow assembly" technology overcomes traditional 3D printing material limitations and opens doors to multifunctional microsystems, with potential applications in smart drug delivery, in-body micro-surgical robots, and high-density microsensors [3]