Influence of Micropillar Height Modulation on Droplet Evaporation and Wetting State Transitions (Adv. Mater. Interfaces 3/2026)

Droplet Evaporation Dynamics on Micropillars This cover illustrates sessile droplets evaporating on micropillar substrates engineered with distinct height-variation patterns, each producing unique wetting and evaporation dynamics. The study shows that micropillar-height modulation can alter wetting states, contact angle behavior, and effective diffusion during evaporation, changing vapor transport and reshaping evaporation dynamics. Such control enables surfaces that tune both mass-transfer processes and wetting-driven deposition behaviors. More details can be found in the Research Article by Prabuddha De Saram, Nam-Trung Nguyen, and Navid Kashaninejad (DOI: 10.1002/admi.202500577).