Femtosecond Laser Fabrication of Biomimetic Super‐Slippery Surfaces: A Review

The biomimetic super‐slippery surface is a solid–liquid composite structure formed by infusing a low‐surface‐energy lubricant into micro‐ and nanostructured substrates. Owing to its outstanding liquid‐repellent and self‐healing capabilities, this surface holds substantial research significance and broad application potential. Femtosecond lasers, owing to their broad material compatibility, high processing precision, and excellent controllability, are considered an effective technique for the fabrication of super‐slippery surfaces. The article begins by summarizing the characteristics, fabrication principles, and current state of research on super‐slippery surfaces. It then emphasizes femtosecond laser‐based fabrication, discussing the corresponding mechanism and advantages, as well as recent advances in preparing super‐slippery surfaces on diverse substrates such as polymers, ceramics, metals, and alloys. The article also discusses the diverse applications of super‐slippery surfaces fabricated via femtosecond laser processing, including corrosion resistance, anti‐icing, antifouling, emerging fields such as biomedical engineering, blood compatibility, and controlled droplet transport. Finally, this work summarizes the key issues and challenges that remain in the femtosecond laser fabrication of super‐slippery surfaces.