Biomimetic superoleophobic surfaces: focusing on their fabrication and applications

Ji, Ting; Guo, Zhiguang; Liu, Weimin

doi:10.1039/c4ta05582a

Cited by 221 publications

(159 citation statements)

References 170 publications

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“…[3] It is critical for a superhydrophobic surface to possess suitable surface roughness and low surface free energy. [4] Up to now, there are many ways to increase surface roughness [5], among them the use of hydrophobic particles should be a facile and effective approach. [6] These particles usually form a coating on a surface by some means to change solid surface properties.…”

Section: Introductionmentioning

confidence: 99%

Robust superhydrophobic tungsten oxide coatings with photochromism and UV durability properties

Guo

2016

Applied Surface Science

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Section: Introductionmentioning

confidence: 99%

Robust superhydrophobic tungsten oxide coatings with photochromism and UV durability properties

Guo

2016

Applied Surface Science

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“…[1,4] Hence, the water can be trapped in the hierarchical micro/nanostructure to form an oil-repellent layer, leading to underwater superoleophobicity and ultralow oil-adhesion. For example, conventional topdown microfabrication methods [5][6][7][8] containing etching, [6] lithography, [7] and anodization, [8] have been widely used in underwater superoleophobic surfaces fabrication due to their simplicity and cheapness. For example, conventional topdown microfabrication methods [5][6][7][8] containing etching, [6] lithography, [7] and anodization, [8] have been widely used in underwater superoleophobic surfaces fabrication due to their simplicity and cheapness.…”

Section: Introductionmentioning

confidence: 99%

“…[1,4] Inspired by fish scales, many kinds of underwater superoleophobic and low-adhesive interfaces have been fabricated with diverse technologies to boost their applications in self-cleaning coatings, fluidic devices, oil-water separation, bioadhesion, oil-droplet manipulation and so on. On the other hand, bottom-up methods [5,[9][10][11][12][13][14][15] including electro/spray/vapor/deposition, [9,10] hydrothermal method, [11] sol-gel process, [12] dip coating, [13] self-assembly, [14] and template method [15] are also used for fabricating underwater superoleophobic surfaces due to their cheapness. However, these methods have many drawbacks such as the fabricated surfaces are fragile, or the process needs a long molding cycle, even forms residual solution which will pollute the environment.…”

Section: Introductionmentioning

confidence: 99%

Fish scale inspired design of underwater superoleophobic microcone arrays by sucrose solution assisted femtosecond laser irradiation for multifunctional liquid manipulation

Lü

et al. 2015

J. Mater. Chem. A

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The preparation of superhydrophilic/superoleophilic/underwater superoleophobic surfaces is inspired by natural surfaces such as fish scales possessing hierarchical micro/nanostructures.In this paper, we report the assembly of self-organized hierarchical microcones arrays on nickel surface by sucrose solution-assisted femtosecond laser irradiation. The processed surface is superhydrophilic (13.47 o~4 .01 o ), superoleophilic (7.45 o~3 .73 o ), and underwater superoleophobic (135.22 o~1 66.16 o ), which are comparable to that of the fish scales. The wettabilities of the processed surfaces are tunable by adjusting the mass ratio of the sucrose to water and pulse energy to control the height (1.62~10.34 µm) and size (2.1~2.81 µm) of the microcones. Multifunctional liquid manipulation such as microdroplet transferring, static and dynamic storage, liquid transportation and mixing are demonstrated. Our proposed method features rapidness, simplicity and easiness of large-area fabrication, which may find broader applications in many fields such as microfluidic devices, fluid microreactors, biomedicine, biomedical scaffold, and chemical-biological sensors.-3 -preparing underwater superoleophobic surfaces by femtosecond laser microfabrication on Ti materials. As a kind of important ferromagnetic metal, nickel shows outstanding optical, catalytic, electrical, and superior resistant characteristics to corrosion, which makes it widely applicable in electronics, [19] nickel-batteries, [20] alloy, [21] and chemical catalyst. [22] However, the present fabrication on nickel material using femtosecond laser microfabrication and studying the underwater superoleophobicity are still few. Therefore, it is of great interests to produce underwater superoleophobic surfaces on nickel substrates, and study their functions and potential applications.Here, we demonstrate a facile and rapid method to fabricate large-area microcones arrays by one-step femtosecond laser irradiation on nickel targets in sucrose solutions. The prepared surfaces are superhydrophilic in air and superoleophobic in water. It is indicated that the height and size are tunable by controlling the ratio of the sucrose to the water in the solution and the laser pulse energy, leading to controllable wettabilities for water and oil. Furthermore, these processed surfaces covered with microcones arrays exhibit multiple functions, which can be used in microfluidic devices, fluid microreactors, biomedicine, biomedical scaffold, chemical, and biological sensors. Experimental SectionMaterials: Nickel sheets with a purity of 99.99% were purchased from New Metal Material Tech. Co., Ltd., Beijing, China. The oil used in our experiment is 1, 2dichloroethane, and the chemical formula was C 2 H 4 Cl 2 . The sucrose (chemical formula is C 12 H 22 O 11 and the relative molecular mass is 342.3), milk (the color is white) and the red ink are purchased from supermarket. The sucrose solution is prepared by dissolving sucrose with a certain mass into 100g distilled water, and the mass ratio ran...

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“…Many techniques to fabricate liquid-repellent surfaces have been established; 16,18,43,101,218 however, most of them are limited to the laboratory and cannot be transferred to industrial-scale manufacturing processes. Many techniques to fabricate liquid-repellent surfaces have been established; 16,18,43,101,218 however, most of them are limited to the laboratory and cannot be transferred to industrial-scale manufacturing processes.…”

Section: Discussionmentioning

confidence: 99%

The springtail cuticle as a blueprint for omniphobic surfaces

2016

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Omniphobic surfaces found in nature have great potential for enabling novel and emerging products and technologies to facilitate the daily life of human societies. One example is the water and even oil-repellent cuticle of springtails (Collembola). The wingless arthropods evolved a highly textured, hierarchically arranged surface pattern that affords mechanical robustness and wetting resistance even at elevated hydrostatic pressures. Springtail cuticle-derived surfaces therefore promise to overcome limitations of lotus-inspired surfaces (low durability, insufficient repellence of low surface tension liquids). In this review, we report on the liquid-repellent natural surfaces of arthropods living in aqueous or temporarily flooded habitats including water-walking insects or water spiders. In particular, we focus on springtails presenting an overview on the cuticular morphology and chemistry and their biological relevance. Based on the obtained liquid repellence of a variety of liquids with remarkable efficiency, the review provides general design criteria for robust omniphobic surfaces. In particular, the resistance against complete wetting and the mechanical stability strongly both depend on the topographical features of the nano- and micropatterned surface. The current understanding of the underlying principles and approaches to their technological implementation are summarized and discussed.

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Biomimetic superoleophobic surfaces: focusing on their fabrication and applications

Abstract: Recent progress in the fabrication and applications of biomimetic superoleophobic surfaces are mainly reviewed, and current and further challenges for biomimetic superoleophobic surfaces are also proposed.

Cited by 221 publications

References 170 publications

Robust superhydrophobic tungsten oxide coatings with photochromism and UV durability properties

Robust superhydrophobic tungsten oxide coatings with photochromism and UV durability properties

Fish scale inspired design of underwater superoleophobic microcone arrays by sucrose solution assisted femtosecond laser irradiation for multifunctional liquid manipulation

The springtail cuticle as a blueprint for omniphobic surfaces

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