Core Viewpoint - The article discusses significant advancements in the field of micro-magnetic drive flexible devices, emphasizing the development of a template-free magnetic domain programming strategy that enhances manufacturing precision and efficiency for micro-robots [4][6][25]. Group 1: Technological Advancements - A collaborative team from Xi'an Jiaotong University, City University of Hong Kong, and the Max Planck Institute for Intelligent Systems has made key progress in high-precision batch manufacturing of magnetically controlled soft robots [4][5]. - The new strategy utilizes temperature-induced stress in a heterogeneous gel to achieve 20μm resolution in programmable three-dimensional magnetization with a processing speed of seconds, significantly improving the programming precision and manufacturing efficiency of micro-magnetic devices [4][6][11]. Group 2: Methodology - The team introduced a "template-free three-dimensional magnetic domain programming" approach that eliminates the need for molds and assembly, allowing for integrated processing of three-dimensional magnetic structures [7][8]. - The process involves immersing the structure in liquid PEG at 65°C, inducing stress that drives the flexible micro-device to deform into a pre-set three-dimensional shape, followed by saturation magnetization in a 1.8T magnetic field [11][12]. Group 3: Experimental Results - The research demonstrated that temperature increases the strain and stress in the structure, enhancing deformation, with a notable correlation between magnetic domain distribution and temperature-induced deformation angles [13][17]. - The team successfully created a multi-legged soft robot capable of efficient movement by programming adjacent legs with opposite magnetization directions, allowing for precise control in an alternating magnetic field [22][25]. Group 4: Future Prospects - Future plans include miniaturizing magnetic soft robots to below 10μm for biomedical applications, integrating multiple physical field responses for complex driving modes, and exploring applications in vascular navigation and targeted drug delivery [25][26].