ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(45), P. 62838 - 62850

Published: Oct. 30, 2024

Wedge-shaped superhydrophilic tracks have been considered as one of the most effective ways to transport droplets for diverse cutting-edge applications, e.g., energy harvesting and lab-on-a-chip devices. Although significant progress, such serial wedge-shaped with curved edges, has evolved advance liquid transport, ultrafast long-distance transporting drop-shaped remains challenging. Here, inspired by cactus spine that enables fast droplet spindle knot spider silk, which is capable collecting condensate from a wide range distances, we created patterns optimized their side edges convex brachistochrone curve boost acceleration. The junctions were meanwhile reformed into concave curves lower barrier sustained transport. For in drop shapes long distance at high velocity, slenderized greatest extent suppress spreading thus prevent degradation Laplace driving force. Moreover, junction determines striding was carefully designed based on principle minimizing momentum loss. exquisite architecture design pushed maximum instantaneous velocity 207.7 mm·s–1 an outermost 120.5 mm, exceeding wettability or geometric gradient reports. transported volume can be readily regulated simply scaling architectures. enhanced facilitates motion departure cohered droplets, enabling 1.9-fold rise water collection rate 12-fold increase heat transfer coefficient during fog harvest test. This scalable, controllable, easily fabricatable surface provides essential pathway realizing high-performance manipulation possibly pioneers substantial innovative applications multidisciplinary fields. Those include but are not limited harvesting, devices, MEMS systems.

Language: Английский