Date: Jan 9, 2026
Category: Science & Technology
Controlling the way liquids interact with solid surfaces is a cornerstone of modern science and engineering, impacting fields from microfluidics to wearable electronics. Recent research introduces a breakthrough: a bulk-cusp microstructure that enables fully programmable, multi-directional liquid spreading—without the need for external energy input. This novel microstructure leverages the dynamics of precursor films to direct droplets in 0 to 4 distinct directions, offering unprecedented control over wetting behavior. Unlike traditional methods that require external stimuli or complex surface treatments, the bulk-cusp design achieves directional spreading through its intrinsic geometry. This innovation opens new possibilities for applications such as self-cleaning surfaces, advanced coatings, and fluidic devices. Key references include: - Zhang, B. B. et al. (2024). A three-dimensional liquid diode for soft, integrated permeable electronics. Nature 628, 8492. - Wu, T. et al. Bio-inspired hierarchical wearable devices for smart fluid management. With its energy-free operation and programmable control, the bulk-cusp microstructure marks a significant step forward in the science of surface wetting and liquid manipulation. Read the source »
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