Submillimeter Multifunctional Ferromagnetic Fiber Robots for Navigation, Sensing, and Modulation

• DOI: 10.1002/adhm.202300964
• Publication Date: 2023-07-20T22:05:01Z
• Authors: Yujing Zhang; Xiaobo Wu; Ram Anand Vadlamani; Youngmin Lim; Jongwoon Kim; Kailee David; Earl Gilbert; You Li; Ruixuan Wang; Shan Jiang; Anbo Wang; Harald Sontheimer; Daniel Fine English; Satoru Emori; Rafael V. Davalos; Steven Poelzing; Xiaoting Jia
• Keywords: Mice; Miniaturization; Magnetic Fields; Animals; Robotics; Equipment Design

Small-scale robots capable of remote active steering and navigation offer great potential for biomedical applications. However, the current design manufacturing procedure impede their miniaturization integration various diagnostic therapeutic functionalities. Herein, submillimeter fiber that can integrate navigation, sensing, modulation functions are presented. These fabricated through a scalable thermal drawing process at speed 4 meters per minute, which enables ferromagnetic, electrical, optical, microfluidic composite with an overall diameter as small 250 µm length long 150 m. The tip deflection angle reach up to 54