Different phoretic effects have been widely exploited for designing self-propelled colloidal systems. but the underlying wave vector dependent dynamics has been little investigated. In this work. the out-of-equilibrium dynamics of colloids in near-critical liquid mixtures undergoing spinodal phase separation was probed by x-ray photon correlation spectroscopy (XPCS). https://www.spidertattooz.com/NYX-Total-Control-Drop-Foundation-Brush-PROB22-p11165/