Femtosecond laser writing of durable open microfluidic channels via a mode-switchable strategy DOI

Yahui Su,

Linfeng Zheng, Zhaoxin Lao

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(10)

Published: Sept. 2, 2024

Open microfluidic systems offer significant advantages, including the elimination of external pumps and facilitating fluid access at any point along channel. However, their deployment in harsh environments is commonly compromised due to delicate nature hydrophilic chemical coatings vulnerability open microchannels clogging contamination. Here, a bioinspired, demand-responsive mode-switchable strategy proposed enhance mechanical durability systems. Specifically, under conditions or when long-term storage necessary, this allows device transition protective mode simply through releasing strain, thereby preserving integrity structure coatings. The stretched enables spontaneous liquid spreading microchannel scribed by femtosecond laser. This provides with robustness maintain flow, even severe testing such as 2000 cycles cotton swab rubbing, sand impact, sandpaper abrasion, tape peeling, twisting, finger rubbing. A proof-of-concept application involving blood type analysis on showcases its superior environmental conditions. paves way for broader use devices various practical applications.

Language: Английский

Mesoporous Nanogel Sprays as Universal Evaporation Interface Modifiers for Boosting Water‐Cluster Evaporation DOI Open Access
Hai-Yun Zhu, Junsheng Yang, Chengcheng Li

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Abstract Accelerating water evaporation is vital for processes like photosynthesis, dehydration, and desalination. Optimizing the pore structure interfacial properties of evaporative materials can reduce enthalpy increase efficiency. However, integrating interface with transport channels poses significant design challenges complicates low‐enthalpy analysis. To address these challenges, a hydrophilic nanovesicle gel developed hydrophobic mesoporous as an ideal spray. This spray effectively upgrades their universal substrates (including PVA hydrogels, balsa wood, nanofiltration membrane, cellulose paper, nylon fabrics, etc.), enabling simple preparation materials. The sprayed samples, at low spraying dose 40 mg cm −2 , achieved rates 1.58 3.26 kg m h −1 under 0.5 1 sun irradiance, which are 297% 268% higher than respective substrates. These nanogels offer benefits edibility, cost, ease use, compatibility various substrates, showing great potential in seawater desalination, dehydration technology, crop yield enhancement, coating/paint drying. More importantly, this work highlights need researchers to focus on surface materials, rather merely using bulk gels, development high‐performance

Language: Английский

Citations

5
Fast-Developing Dynamic Radiative Thermal Management: Full-Scale Fundamentals, Switching Methods, Applications, and Challenges DOI Creative Commons

Long Xie,

Xuechuan Wang,

Yageng Bai

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 17, 2025

Abstract Rapid population growth in recent decades has intensified both the global energy crisis and challenges posed by climate change, including warming. Currently, increased frequency of extreme weather events large fluctuations ambient temperature disrupt thermal comfort negatively impact health, driving a growing dependence on cooling heating sources. Consequently, efficient management become central focus research. Traditional systems consume substantial energy, further contributing to greenhouse gas emissions. In contrast, emergent radiant technologies that rely renewable have been proposed as sustainable alternatives. However, achieving year-round without additional input remains formidable challenge. Recently, dynamic radiative emerged most promising solution, offering potential for energy-efficient adaptation across seasonal variations. This review systematically presents advancements management, covering fundamental principles, switching mechanisms, primary materials, application areas. Additionally, key hindering broader adoption are discussed. By highlighting their transformative potential, this provides insights into design industrial scalability these innovations, with ultimate aim promoting integration applications.

Language: Английский

Citations

2
Advances in the durability of biomimetic superamphiphobic surfaces DOI
Longgang Zhang, Pengyu Zhang, Zhiguang Guo

et al.

Nano Today, Journal Year: 2025, Volume and Issue: 62, P. 102686 - 102686

Published: Feb. 22, 2025

Language: Английский

Citations

2
3D Wetting Gradient Janus Sports Bras for Efficient Sweat Removal: A Strategy to Improve Women's Sports Comfort and Health DOI

Shuqiang Min,

Zixuan Xu,

Yange Huang

et al.

Small, Journal Year: 2024, Volume and Issue: 20(44)

Published: July 11, 2024

Developing Janus fabrics with excellent one-way sweat transport capacity is an attractive way for providing comfort sensation and protecting the health during exercise. In this work, a 3D wetting gradient fabric (3DWGJF) first proposed to address issue of excessive accumulation in women's breasts, followed by integration sponge pad form sports bra (3DWGJSB). The enables prepared control horizontal migration mode (x/y directions) then unidirectionally penetrate downward (z direction), finally keeping water content on inner side 3DWGJF (skin side) at ≈0%. addition, has good vapor transmittance rate (WVTR: 0.0409 g cm

Language: Английский

Citations

10
Fabrication and energy collection of PDMS/dimethylsilicone oil superhydrophobic high tensile film DOI
Peihua Zhang, Rifeng Jiang,

Boyuan Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161028 - 161028

Published: Feb. 1, 2025

Language: Английский

Citations

1
Interfacial polymerization of dopamine with diamines for ultrastable Janus nanofiltration membranes and adhesives DOI
Viktor Tóth, Rifan Hardian, Hakkim Vovusha

et al.

Materials Today, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

1
Vampire bat's tongue-inspired superhydrophilic flexible origami channel for directional and spontaneous liquid manipulation DOI

Zhihang Ye,

Jingyi Zhao,

Qianrui Tong

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(27), P. 16373 - 16382

Published: Jan. 1, 2024

An improved bat-tongue-inspired superhydrophilic origami channel with liquid manipulation and collecting ability.

Language: Английский

Citations

8
Dual-Liquid-Diode Janus Mesh with Multisuperwettability for Unidirectional Oil–Water Transportation DOI
Pang Wei, Feiran Li, Fang Chen

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(22), P. 26086 - 26096

Published: Nov. 8, 2024

Natural biological surfaces enable directional liquid transport and storage due to the specific characteristics surface morphologies. Inspired by these natural mechanisms, it is of interest have materials with an asymmetric energy or structures achieve unidirectional transportation. Herein, a dual-liquid-diode (DLD) Janus mesh superwettability on two sides has been designed via electrospraying, one side being superoleophobic/hydrophilic other superhydrophobic/oleophilic. The DLD was transportation both oil water in opposite direction concurrently, contrast membranes that were developed for single liquid. Oil can unidirectionally pass through without external supply air environments. This unique property enables high flexibility controllable multiphase scenarios. demonstrates promise future applications smart separation, on-demand oil–water delivery, fluid valve technologies.

Language: Английский

Citations

4
3D Self-Driven Underwater Aerofluidic Systems Woven with Femtosecond Laser-Structured Superhydrophobic Wires DOI
Xianghuang Mei, Yubin Peng, Jiale Yong

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

To overcome the inherent limitations of 2D aerofluidic systems, we propose a novel strategy that combines traditional Chinese weaving technology with superhydrophobic metal wires to construct 3D underwater systems. In water, air is trapped between femtosecond laser-structured stainless steel and surrounding creating microscale channel for gas transport within designed system. The Laplace pressure difference bubbles across different circular regions woven can drive spontaneous along connecting lines in space. Interestingly, various systems be interconnected simply by touching, enabling integration functional units into multifunctional Beyond basic on-demand transport, integrated facilitate splitting, merging, diodes, multiline/multigas operations such as microreactions gases.

Language: Английский

Citations

0
True “Liquid Diode”: Check Valve@Janus Membrane to Achieve an Extremely High Reverse Breakthrough Pressure DOI

Xiaohua Yu,

Heng Wang, Fuzhou Niu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Janus membranes, widely recognized for their remarkable unidirectional permeability, can achieve spontaneous liquid transport from the hydrophobic sides to hydrophilic while impeding flow in opposite direction. However, current membrane only possesses limited reverse breakthrough pressure (RBP) (<20 cm water height), which is a key factor determining function. Here, inspired by one-way blood function of heart valves, solution issue above proposed form integrated with gravity-assisted check valve (check valve@Janus membrane). As result, was observed be nearly zero positive More importantly, RBP had been reach up 4 m. This considerable advance predominantly attributable unparalleled resistance backward flow. The results perfect flow, thereby achieving concept true "liquid diode". innovation offers novel method enhancing membrane, opening wealth potential avenues future applications clinical medicine, microfluidics, and other disciplines.

Language: Английский

Citations

0