Bioinspired Asymmetric Superwettable Materials: From Structural and Wettability Regulation to Liquid Manipulation and...

Area of Science:

• Materials Science
• Surface Chemistry
• Biomedical Engineering

Background:

• Precise liquid regulation is crucial for microfluidics, wound dressings, and desalination.
• Conventional methods using surface microstructure and chemistry are often complex.
• Asymmetric materials offer a novel approach with differentiated functional domains for directional liquid transport.

Purpose of the Study:

• To review nature-inspired liquid control systems.
• To focus on wettability and asymmetric structures as key mechanisms.
• To summarize applications in biomedical materials and discuss future perspectives.

Main Methods:

• Systematic review of existing literature.
• Analysis of nature-inspired design strategies.
• Focus on engineering structure and wettability of material layers.

Main Results:

• Asymmetric materials enable efficient directional liquid transport.
• Nature-inspired designs leverage wettability and asymmetric structures.
• Engineered layers improve liquid manipulation for enhanced performance.

Conclusions:

• Asymmetric materials represent a paradigm shift towards active and precise liquid regulation.
• Nature-inspired strategies show significant potential in biomedical fields like wound dressings and hemostatic materials.
• Further research is needed to overcome current challenges and fully realize the potential of these systems.