  The development of bio-inspired interfacial materials with enhanced drop
mobility that mimic the innate functionalities of nature will have significant
impact on the energy, environment and global healthcare. In spite of extensive
progress, the state of the art of interfacial materials have not reached the
level of maturity sufficient for industrial applications in terms of
scalability, stability and reliability, which are complicated by their
operating environments and lack of facile approaches to exquisitely control the
local structural texture and chemical composition at multiple length scales. In
this review, we focus on the recent advances in the fundamental understanding
as well as practical applications of bio-inspired interfacial materials, with
an emphasis on the drop impact induced bouncing and coalescence induced jumping
behaviors. We also suggest our own perspectives on how to catalyze new
discoveries and to foster technological adoption to move this exciting area
forward.
