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://thebanyantreers.shop/product-category/ice-trays/