Bio-Inspired Hierarchical Micro/Nanostructured Surfaces for Superhydrophobic and Anti-Ice Applications

Zhang, Lansheng; Uzoma, Paul C.; Xiaoyang, Chu; Penkov, Oleksiy V.; Hu, Huan

doi:10.3389/fbioe.2022.872268

Cited by 8 publications

(7 citation statements)

References 59 publications

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“…Surface wettability, a typical material property that occurs commonly in nature, is gaining increasing attention for both scientific researches and biomedical applications in antifouling materials ( Xie et al, 2019 ; He et al, 2021a ; He et al, 2021b ; Chang et al, 2022 ; Eloffy et al, 2022 ; Rasitha et al, 2022 ; Seli et al, 2022 ; Selim et al, 2022 ; He et al, 2023a ; He et al, 2023b ; He et al, 2023c ), blood contacting materials ( Yang et al, 2020 ; Li et al, 2021 ; Li et al, 2022a ; Li et al, 2022b ), etc. ( Wu et al, 2018 ; Li et al, 2020a ; Wang et al, 2020 ; Guo et al, 2021 ; Han and Gong, 2021 ; Saji, 2021 ; Zhang et al, 2021 ; Zhu et al, 2021 ; Al-Bishari et al, 2022 ; Wang et al, 2022a ; Luo et al, 2022 ; Yao et al, 2022 ; Yu et al, 2022 ; Zhang et al, 2022 ; Gresham and Neto, 2023 ; Li et al, 2023 ; Liao et al, 2023 ; Pan et al, 2023 ). Surfaces can be categorized according to the water contact angle (WCA), as hydrophilic (for WCA <90°) or hydrophobic (for WCA >90°) ( Li et al, 2020b ; Yang et al, 2022 ; Zhao et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing

He,

Wang,

et al. 2023

Front. Bioeng. Biotechnol.

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Porous polydimethylsiloxane (PDMS) films with special surface wettability have potential applications in the biomedical, environmental, and structural mechanical fields. However, preparing porous PDMS films with a regular surface pattern using conventional methods, such as chemical foaming or physical pore formation, is challenging. In this study, porous PDMS films with a regular surface pattern are designed and prepared using 3D printing to ensure the formation of controllable and regular physical structures. First, the effect of the surface wettability of glass substrates with different surface energies (commercial hydrophilic glass and hydrophobic glass (F-glass) obtained by treating regular glass with 1H,1H,2H,2H-perfluorooctyl-trichlorosilane) on the structural characteristics of the 3D printed PDMS filaments is investigated systematically. Additionally, the effect of the printing speed and the surface wettability of the glass substrate on the PDMS filament morphology is investigated synchronously. Next, using the F-glass substrate and an optimized printing speed, the effects of the number of printed layers on both the morphologies of the individual PDMS filaments and porous PDMS films, and the surface wettability of the films are studied. This study reveals that regularly patterned porous PDMS films with distinct structural designs but the same controllable surface wettability, such as anisotropic surface wettability and superhydrophobicity, can be easily fabricated through 3D printing. This study provides a new method for fabricating porous PDMS films with a specific surface wettability, which can potentially expand the application of porous PDMS films.

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Section: Introductionmentioning

confidence: 99%

Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing

He,

Wang,

et al. 2023

Front. Bioeng. Biotechnol.

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“…It is known that surface wettability is a result of the surface chemical composition and physical structure ( Young, 1805 ; Zhu et al, 2012 ; Tian et al, 2014 ; Yu et al, 2015 ; Kuang et al, 2016 ; Martin et al, 2017 ; Lee et al, 2022 ; Luo et al, 2022 ; Zhang et al, 2022 ). Silicone- or fluoro-based polymers are the main polymeric materials used to achieve superhydrophobicity or superoleophobicity ( Dobretsov and Thomason, 2011 ), and silicone- and fluoro-based polymers with fouling release properties are suitable for achieving antifouling abilities ( Carl et al, 2012 ; Lejars et al, 2012 ; Liu et al, 2017 ; Liang et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

A versatile “3M” methodology to obtain superhydrophobic PDMS-based materials for antifouling applications

Yang

et al. 2022

Front. Bioeng. Biotechnol.

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Fouling, including inorganic, organic, bio-, and composite fouling seriously affects our daily life. To reduce these effects, antifouling strategies including fouling resistance, release, and degrading, have been proposed. Superhydrophobicity, the most widely used characteristic for antifouling that relies on surface wettability, can provide surfaces with antifouling abilities owing to its fouling resistance and/or release effects. PDMS shows valuable and wide applications in many fields, and due to the inherent hydrophobicity, superhydrophobicity can be achieved simply by roughening the surface of pure PDMS or its composites. In this review, we propose a versatile “3M” methodology (materials, methods, and morphologies) to guide the fabrication of superhydrophobic PDMS-based materials for antifouling applications. Regarding materials, pure PDMS, PDMS with nanoparticles, and PDMS with other materials were introduced. The available methods are discussed based on the different materials. Materials based on PDMS with nanoparticles (zero-, one-, two-, and three-dimensional nanoparticles) are discussed systematically as typical examples with different morphologies. Carefully selected materials, methods, and morphologies were reviewed in this paper, which is expected to be a helpful reference for future research on superhydrophobic PDMS-based materials for antifouling applications.

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“…The reported fabrication methods of hierarchical micro-/nanostructures (MN) include nanosecond pulsed laser irradiation [ 38 ], femtosecond laser [ 39 ], nanoimprinting [ 40 ], hot-embossing [ 41 ], scanning probe lithography [ 42 ], glancing angle deposition [ 43 ], self-assembly [ 44 , 45 ], metal-assisted chemical etching [ 46 ], etc. The traditional methods for forming hierarchical micro-/nanostructures are shown in Table S1 (Supplementary Materials) .…”

Section: Introductionmentioning

confidence: 99%

“…The traditional methods for forming hierarchical micro-/nanostructures are shown in Table S1 (Supplementary Materials) . Most of these methods rely on costly equipment [ 38 , 39 , 42 , 47 ] and require a high-temperature process [ 41 ] or vacuum environment [ 43 ]. Moreover, many of them require two different fabrication processes [ 39 ] or materials [ 43 ] to form the hierarchical micro-/nanostructures.…”

Section: Introductionmentioning

confidence: 99%

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Bio-Inspired Hierarchical Micro-/Nanostructures for Anti-Icing Solely Fabricated by Metal-Assisted Chemical Etching

et al. 2022

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We report a cost-effective and scalable methodology for producing a hierarchical micro-/nanostructured silicon surface solely by metal-assisted chemical etching. It involves two major processing steps of fabricating micropillars and nanowires separately. The process of producing micro-scale structures by masked metal-assisted chemical etching was optimized. Silicon nanowires were created on the micropillar’s surface via maskless metal-assisted chemical etching. The hierarchical micro-/nanostructured surface exhibits superhydrophobic properties with a high contact angle of ~156° and a low sliding angle of <2.5° for deionized water. Furthermore, due to the existence of microscale and nanoscale air trapped at the liquid/solid interface, it exhibits a long ice delay time of 2876 s at −5 °C, more than 5 times longer than that of smooth surfaces. Compared to conventional dry etching methods, the metal-assisted chemical etching approach excludes vacuum environments and high-temperature processes and can be applied for applications requiring hierarchical micro-/nanostructured surfaces or structures.

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Bio-Inspired Hierarchical Micro/Nanostructured Surfaces for Superhydrophobic and Anti-Ice Applications

Cited by 8 publications

References 59 publications

Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing

Porous polydimethylsiloxane films with specific surface wettability but distinct regular physical structures fabricated by 3D printing

A versatile “3M” methodology to obtain superhydrophobic PDMS-based materials for antifouling applications

Bio-Inspired Hierarchical Micro-/Nanostructures for Anti-Icing Solely Fabricated by Metal-Assisted Chemical Etching

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