Diving–Surfacing Cycle Within a Stimulus‐responsive Smart Device Towards Developing Functionally Cooperating Systems

A functionally cooperating device has been fabricated by combining a pH-responsive surface with hydrogen peroxide-responsive platinum, which displays a diving–surfacing cycle towards mimicking a submarine. This smart device may open a new avenue to the research of nanoscience and bridge the gap between active nanomaterials and three-dimensional nanosystems or systems of systems.