Surface entrapment of micromotors by a background temperature field

The fabrication of self-propelling micromotors and the study their propulsion strategies have gained attention due to wide range applications in medical, engineering, environmental fields. role a background temperature field precise navigation self-thermophoretic micromotor near an insulated wall has been investigated by employing exact solutions energy equation creeping flow. We report bound states for half-coated appearing as steady-state sliding, damped, periodic oscillations when dimensionless external gradient (S) is 0.15≤S<0.26. sliding height lower with S but remains insensitive thermal conductivity contrast. Moreover, stationary self-propelled, asymmetrically coated transform into scattering trajectories. highlight combinations coating coverage needed guided swimming up or against along broad spectrum counter-intuitive temporal variations its navigating locations. These unique observations ascribed confinement-mediated dynamic coupling between passive active mechanisms.