Interfacial fluid manipulation with bioinspired strategies: special wettability and asymmetric structures

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Bioinspired fluid manipulating interfaces possessing special wettability, an asymmetric structure, and a geometric gradient were systematically reviewed, including history, classification, mechanisms, fabrication applications.

Language: Английский

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Biomimetic Design of 3D Fe₃O₄/V-EVOH Fiber-Based Self-Floating Composite Aerogel to Enhance Solar Steam Generation Performance

Nano Letters, Journal Year: 2024, Volume and Issue: 24(15), P. 4537 - 4545

Published: April 3, 2024

An interfacial solar steam generation evaporator for seawater desalination has attracted extensive interest in recent years. Nevertheless, challenges still remain relatively low evaporation rate, unsatisfactory energy conversion efficiency, and salt accumulation. Herein, we have demonstrated a biomimetic bilayer composite aerogel consisting of bottom hydrophilic vertically aligned EVOH channels an upper hydrophobic conical Fe3O4 array. Thanks to the design merits, 3D Fe3O4/V-EVOH exhibits high rate ∼2.446 kg m–2 h–1 impressive efficiency ∼165.5% under 1 sun illumination, which is superior those state-of-the-art evaporators reported so far. Moreover, asymmetrical wettability not only allows self-float on water but also facilitates ion diffusion channels; thus, shows no crystals its surface 6% decrease performance even after concentration increases from 0 10.0 wt %.

Language: Английский

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Effects of Size and Porosity on the Hydrophobicity of Hierarchical Nanoparticles

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

Published: Feb. 17, 2025

Hierarchical nanoporous particles combine properties of microporous and mesoporous materials that are widely exploited for energy storage conversion, separation gases liquids, water purification desalination, fabrication nanodevices, etc. meso/microporous level-2 level-3 Menger sponge immersed in were investigated using computer simulation methods to demonstrate a synergetic effect additional porosity on the wettability materials. The is an object with fractal dimension. At each level, composed same structural blocks. hydrophobicity blocks was shown depend their size position nanoparticles. decreases due partial breaking hydrogen bonds between molecules pores. This can be used tune modify bulky porous materials, nanoparticles, nanostructured surfaces.

Language: Английский

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Emerging Trends in Bioinspired Superhydrophobic and Superoleophobic Sustainable Surfaces

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

Published: Feb. 18, 2025

Abstract Inspired by nature's ability to master materials for performance and sustainability, biomimicry has enabled the creation of bioinspired structural color, superadhesion, hydrophobicity hydrophilicity, among many others. This review summarizes emerging trends in novel sustainable fluorocarbon‐free designs creating superhydrophobic superoleophobic surfaces. It discusses methods, challenges, future directions, alongside impact computational modeling artificial intelligence accelerating experimental development more surface materials. While significant progress is made materials, surfaces remain a challenge. However, bioinspiration techniques supported platforms are paving way new renewable biodegradable repellent that meet environmental standards without sacrificing performance. Nevertheless, despite concerns, policies, several still continue apply fluorination other environmentally harmful achieve required standard repellency. As discussed this critical review, paradigm integrates advanced characterization, nanotechnology, additive manufacturing, modeling, coming, generate with tailored superhydrophobicity superoleophobicity while adhering standards.

Language: Английский

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Cooperative Magnetic Interfacial Microrobot Couplefor Versatile Non‐Contact Biomedical Applications

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

Published: Feb. 18, 2025

Abstract Magnetic interfacial microrobots are increasingly recognized as a promising approach for potential biomedical applications ranging from electronic functionalization to minimally invasive surgery and targeted drug delivery. Nevertheless, existing research faces challenges, including less cooperative interactions, contact‐based cargo manipulation, slow transport velocity. Here, the magnetic microrobot couple (CMIMC) is proposed address above challenges. The CMIMC can be maneuvered by single magnet readily switched between capture release states. By leveraging interactions meticulous engineering of capillary forces through shape design surface treatment, demonstrates ability perform non‐contact manipulation. Using synergy preferred magnetization directions field distribution, along with optimization resistance‐reducing shape, significantly enhances velocity, reaching 12.2 body length per second. studies demonstrate various like delivery myomectomy, paving way broad implementation in fields.

Language: Английский

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Progress on fiber engineering for fabric innovation in ecological hydrophobic design and multifunctional applications

Industrial Chemistry and Materials, Journal Year: 2024, Volume and Issue: 2(3), P. 393 - 423

Published: Jan. 1, 2024

This review introduces the hydrophobic mechanism, natural materials and preparation strategies of green fabrics, multi-functional textiles based on fabrics. The challenges prospects in this field are also discussed.

Language: Английский

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Bioinspired Bionic Superhydrophobic Coating Based on Rosin Acid and TiO₂ Nanoparticles for Oil–Water Separation and Anti-icing

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

Published: Jan. 2, 2025

Oily wastewater discharge in daily life and industry poses a major threat to the environment human health. Recently, superhydrophobic materials for treatment of oily have attracted much attention. Herein, bioinspired from blueberry mussel, coating (RA-S@TiO2 coating) based on sulfhydryl-modified rosin acid (RA-S) titanium dioxide nanoparticles (TiO2) was successfully prepared. To increase micro/nano roughened structure material surface, TiO2 with better self-cleaning properties were used as one components. The prepared RA-S@TiO2 exhibited excellent superhydrophobicity (water contact angle greater than 153°) superoleophilicity. What is more, separation efficiency flux various oil–water mixtures 95% 6759 L·m–2·h–1, respectively. It clearly found that remained above 6451 L·m–2·h–1 even after 10 separations. Moreover, desirable durability stability well emulsion performance treatments. Droplets demonstrated anti-icing freeze delays up 1200 s at −18 °C. Furthermore, cycle assessment revealed environmental impact significantly lower other two commercially available materials. In conclusion, due advantages coating, it provided sustainable solution preparation material, which had promising future fields anti-icing.

Language: Английский

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Stearic acid/CNT-wrapped superhydrophobic/oleophilic sponge with Joule-heating effect for efficient removal of crude oil

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(5)

Published: Feb. 3, 2025

Crude oil spill accidents cause extreme environmental damage, with huge economic costs that include the loss of resources. Despite advances in conventional cleanup technology, such as dispersants, absorbents, and skimmers, there is still a need for more efficient solutions. In this study, we introduce Joule-heated stearic acid/carbon nanotube-wrapped polyurethane sponge (SCPU) rapid all-weather recovery leaked crude oil. SCPU both hydrophobic oleophilic electrically conductive. When 6 V were applied across SCPU, surface temperature increased to 146 °C within 70 s, which reduced viscosity shortened time by over 99%. addition, can continuously recover floating on water when connected peristaltic pump. This has high adsorption capacity, scalable preparation method, mechanically stable, thus expected provide an practical solution responding accidents.

Language: Английский

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Topological Design of Floaters with Plug‐In Functions

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

Published: Feb. 19, 2025

Abstract Floaters with exposed surfaces are essential for applications in heterogeneous catalysis, microdetectors, and solar evaporation. Conventional floaters, however, rely on specific low‐density or hydrophobic materials, restricting their adaptability. This study introduces a topological design principle, enabling dense, hydrophilic materials to float stably water. The proposed cellular sheet (HCS) features water‐attractive substrate patterned crown‐shaped pore array, fabricated via digital light processing. These unique pores trap air effectively, providing exceptional buoyancy. modular of the HCS allows versatile plug‐in functionalities by utilizing as reservoirs functional beads. combination multi‐HCSs enables on‐water information encryption decryption. Furthermore, demonstrates potential supporting devices triboelectric nanogenerators, promising wave energy harvesting. work establishes platform designing adaptable floaters integrated functionalities, expanding utility areas, such interface carriers, devices, renewable collection.

Language: Английский

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Triple Biomimetic Surfaces with Patterned Anisotropic Wettability for Multiscale Droplets Manipulation

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

Published: March 6, 2025

Droplets manipulation has attracted increasing attention for its increasingly widespread applications. However, current droplet usually needs complex preparation methods. Here, inspired by lotus leaves, rive and desert beetles, triple biomimetic surfaces are prepared through laser heating. The mastoid structures contribute to the construction of superwettability. Within effective cycles, patterned scanning processing helps achieve various interlaced wettability. groove structure compensates decrease in ability caused attenuation Meanwhile, endows regions with good durability. wettability together constitute anisotropic suface patterns. Macroscopic microscopic been successfully achieved, demonstrating This work not only provides a titanium surface properties but also new insights manipulations on metal surfaces.

Language: Английский

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