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Updated: May 12, 2025

Artificial Lung Device Priming for In Situ Fiber Bundle Surface Grafting

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Published on: March 28, 2025

Enhancing fog harvesting efficiency with a multi-object-coupled bio-inspired surface.

Jiaxin Luo¹, Jiacheng Wang¹, Zhaoyu Chen¹

¹National Innovation Center for Industry-Education Integration of Energy Storage Technology, Xuefeng Mountain Energy Equipment Safety National Observation and Research Station, MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, College of Energy & Power Engineering, Chongqing University, Chongqing 400044, China.

Journal of Colloid and Interface Science

|April 23, 2025

Summary

This summary is machine-generated.

This study introduces a novel multi-scale patterned surface for atmospheric water harvesting. The innovative design significantly boosts fog collection efficiency, offering a sustainable solution for freshwater scarcity.

Keywords:

Edge effects Fog harvesting Hybrid wettability Leaf-vein pattern Multi-object-coupled

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Area of Science:

Materials Science
Environmental Engineering
Biomimetics

Background:

The global freshwater crisis necessitates advanced atmospheric water harvesting technologies.
Conventional fog collectors face limitations due to poor coordination between droplet nucleation and transport.
Bio-inspired designs offer potential but require optimization for efficiency.

Purpose of the Study:

To develop a multi-scale patterned surface for enhanced atmospheric water harvesting.
To integrate bio-inspired mechanisms for improved droplet nucleation and transport.
To achieve high water collection rates for practical applications.

Main Methods:

Fabrication of a multi-object-coupled venation-shaped patterned surface (MVSS) using laser-etched filter paper/polydimethylsiloxane composites.
Integration of heterogeneous wettability patterns, conical spine arrays, and hierarchical venation networks.
Investigating multi-stage phase-transition processes driven by surface energy gradients and Laplace pressure.

Main Results:

Achieved a record water collection rate of 1033 ± 28.2 mg cm⁻² h⁻¹.
Demonstrated synergistic enhancement of fog harvesting through coordinated multi-scale features.
Showcased efficient droplet nucleation, directional transport, and rapid drainage with suppressed water accumulation.

Conclusions:

Structure-property coordination is critical for high-efficiency fog water collection.
The developed MVSS provides a generalized design paradigm for advanced atmospheric water harvesters.
Scalable laser processing and bio-composite materials offer viable pathways for arid region deployment.