  Over the past decade, there has been a growing interest in the study of
multicomponent drops. These drops exhibit unique phenomena, as the interplay
between hydrodynamics and the evolving physicochemical properties of the
mixture gives rise to distinct and often unregulated behaviors. Of particular
interest is the complex dynamic behavior of the drop contact line, which can
display self-lubrication effect. The presence of a slipping contact line in
self-lubricating multicomponent drops can suppress the coffee-stain effect,
conferring valuable technological applications. This review will explain the
current understanding of the self-lubrication effect of drops, and cover an
analysis of fundamental concepts and recent advances in colloidal assembly. The
potential applications of self-lubricating drops across different fields will
also be highlighted.
