Imaging-guided bioresorbable acoustic hydrogel microrobots. - Hong Han; Xiaotian Ma; Weiting Deng; Junhang Zhang; Songsong Tang; On Shun Pak; Lailai Zhu; Ernesto Criado-Hidalgo; Chen Gong; Emil Karshalev; Jounghyun Yoo; Ming You; et al. (Sci. Robotics, 2024)