Going in circles: Slender body analysis of a self-propelling bent rod

Magnetically locked Janus particle clusters with orientation-dependent motion in AC electric fields

“…Hence, we do not capture the perturbation in force on a particle due to the presence of the other. This perturbation being a higher-order effect is not necessary to qualitatively predict the motion of our clusters, 54 as seen in Fig. 2E and 3G–I.…”

Asymmetric rectified electric and concentration fields in multicomponent electrolytes with surface reactions

“…While AREFs induce an electrophoretic force, ARCFs induce a diffusiophoretic (or osmotic, depending on the definition) force. 23–32 We discover that ARCFs are primarily observed in systems with diffusivity contrast and that electrochemical reactions do not produce ARCFs, but can enhance ARCFs caused by diffusivity asymmetry.…”

Microrobots for Biomedicine: Unsolved Challenges and Opportunities for Translation

“…Microrobots are micron-sized objects that carry out programmable actions such as sensing, object manipulation, and enhanced navigation when powered by external fields or environmental sources. Common strategies to power microrobots include external fields, such as magnetic, acoustic, and electric fields, and environmental sources, such as chemical reactions − and biological signals . Due to their programmable action, the small size of microrobots enables their use in traditionally difficult-to-reach environments, such as blood vessels, cavities, and confined porous media (i.e., cortical bone, mucus, and extracellular matrix) found within the human body.…”