Laser engineering of biomimetic surfaces
Abstract
The exciting properties of micro- and nano-patterned surfaces found in natural species hide a virtually endless potential of technological ideas, opening new opportunities for innovation and exploitation in materials science and engineering. Lasers are increasingly proving to be promising tools for the precise and controlled structuring of materials at micro- and nano-scales. When ultrashort-pulsed lasers are used, the optimal interplay between laser and material parameters enables structuring down to the nanometer scale.
Summary
A comprehensive review of laser-based fabrication methods for biomimetic nanostructures. Key content:
Fabrication Techniques Covered:
- Ultrashort-pulsed laser structuring (femtosecond and picosecond)
- Self-organized nanostructure formation via laser-induced periodic surface structures (LIPSS)
- Hierarchical multi-scale patterning (combining micro- and nano-scale features)
- Direct laser interference patterning
Biomimetic Applications:
- Wetting control (superhydrophobicity, oleophobicity)
- Optical properties (anti-reflection, structural color, iridescence)
- Mechanical properties (friction, wear, adhesion)
- Biological-active surfaces (antibacterial, antifouling)
Advantages of Laser Processing:
- Single-step fabrication without masks or chemical etching
- Multi-scale hierarchical structuring possible
- Applicable to diverse materials (metals, semiconductors, polymers, ceramics)
- Precise control of feature dimensions via laser parameters
This review provides practical guidance for implementing laser-based fabrication of butterfly-like nanostructures.