Qinglong Wang, Qianqian Wang, Zhipeng Ning, Kai Fung Chan, Jialin Jiang, Yuqiong Wang, Lin Su, Shuai Jiang, Ben Wang, Bonaventure Yiu Ming Ip, Ho Ko, Thomas Wai Hong Leung, Philip Wai Yan Chiu, Simon Chun Ho Yu, Li Zhang
Micro/nanorobotic swarms consisting of numerous tiny building blocks show great potential in biomedical applications because of their collective active delivery ability, enhanced imaging contrast, and environment-adaptive capability. However, in vivo real-time imaging and tracking of micro/nanorobotic swarms remain a challenge, considering the limited imaging size and spatial-temporal resolution of current imaging modalities. Here, we propose a strategy that enables real-time tracking and navigation of a microswarm in stagnant and flowing blood environments by using laser speckle contrast imaging (LSCI), featuring full-field imaging, high temporal-spatial resolution, and noninvasiveness...
February 21, 2024: Science Robotics