Self-propelled Leidenfrost droplets on femtosecond-laser-induced surface with periodic hydrophobicity gradient

2024/01/30 by Bohong Li, Lan Jiang, Xiaowei Li +2 · 1 voice · 2 citations
Engineering · Materials Science · #Electrohydrodynamics and Fluid Dynamics #Fluid Dynamics and Heat Transfer #Surface Modification and Superhydrophobicity

paper · pdf · doi:10.1088/2631-7990/ad18fb

openalex publication_date 2024/01/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/27

Abstract

Highlights A surface with periodic hydrophobicity gradient (SPHG) is fabricated by shaped femtosecond laser. The directional self-propulsion of the Leidenfrost droplets is realized. The viscous gradient force between gas and liquid is used to drive the droplet to move. A brand-new method for controlling the movement of droplets is provided.

Citations

• DROP IMPACT DYNAMICS: Splashing, Spreading, Receding, Bouncing…

Cited by

• Quantitative detection of trace nanoplastics (down to 50 nm) via surface-enhanced Raman scattering based on the multiplex-feature coffee ring
• Femtosecond laser micro/nano processing: from fundamental to applications

Discussions

• This study applies #femtosecond laser to create SPHG surfaces, enabling directional self-propulsion of #Leidenfrost droplets by modulating vapor layers and viscous forces, offering a method to control [bsky, 1 points, 0 comments]

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