This seminar discusses recent developments and new trends in nonequilibrium dynamics of micro- and nanoparticles. Major topics are dynamics of active particles in complex environments, unjamming of arrested particle motions in strongly disordered materials, dynamics out of liquids, effects of hydrodynamic interactions, emergent phenomena in transport across energy landscapes, driven motion in narrow pores, single-particle tracking and trapping, memory effects, and time-delayed feedback control.