Qianbi Peng, Shu Wang, Jianguo Han, Chenyang Huang, Hengyuan Yu, Dong Li, Ming Qiu, Si Cheng, Chong Wu, Mingxue Cai, Shixiong Fu, Binghan Chen, Xinyu Wu, Shiwei Du, Tiantian Xu
Catheters navigating through complex vessels, such as sharp turns or multiple U-turns, remain challenging for vascular embolization. Here, we propose a novel multistage vascular embolization strategy for hard-to-reach vessels that releases untethered swimming shape-memory magnetic microrobots (SMMs) from the prior catheter to the vessel bifurcation. SMMs, made of organo-gel with magnetic particles, ensure biocompatibility, radiopacity, thrombosis, and fast thermal and magnetic responses. An SMM is initially a linear shape with a 0...
2024: Research: a science partner journal