Nacre-inspired underwater superoleophobic films with high transparency and mechanical robustness

Chen, Wei; Zhang, Pengchao; Yu, Shaokang; Zang, Ruhua; Xu, Liming; Wang, Shutao; Wang, Bailiang; Meng, Jing

doi:10.1038/s41596-022-00725-3

Cited by 28 publications

(18 citation statements)

References 59 publications

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“…24f and g). 67,409,410 The prepared film was composed of aragonite platelets as the inorganic component and chitosan derivative as the organic framework, and showed outstanding robustness and durability in terms of long-term immersion in high salt solution or seawater, and intensive impingement by falling sands (Fig. 24h).…”

Section: Optimizing Matrix/surface Chemistrymentioning

confidence: 99%

Robust and durable liquid-repellent surfaces

et al. 2022

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Section: Optimizing Matrix/surface Chemistrymentioning

confidence: 99%

Robust and durable liquid-repellent surfaces

et al. 2022

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“…This fish-scale inspired bio-inspired wettability specifically performed underwater conditions, hence the development of underwater superoleophobicity performing unperturbed extreme oil repellency at diverse and severe aquatic conditions is essential for its prospective application at "real-world" scenarios. In this context, some of the recently developed mechanically durable underwater superoleophobic coatings inherently remained inadequate to perform at either acidic [28,35] or alkaline [27] conditions. However, further design is essential to achieve mechanically and chemically durable underwater superoleophobicity in diverse corrosive environments.…”

Section: Durability Of Coated Substrates and Embedded Oil-wettabilitymentioning

confidence: 99%

Chemically Customizing Mechanical Properties and Optical Transparency in Underwater Superoleophobic Coating

Borbora

Dhar

Shome

et al. 2023

Adv Funct Materials

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The inherent ability of bio‐inspired underwater superoleophobicity to prevent oil/oily fouling underwater makes it appropriate for a wide range of applications related to environmental remediation, bio‐adhesion, microfluidics, chemical sensing, etc.; however, the co‐association of mechanical durability and optical transparency is essential for realistic performance. While the design of mechanically durable and absolutely optically transparent underwater superoleophobic coating remains challenging, here, a covalently cross‐linked and chemically reactive sol‐gel conversion process is introduced through 1,4‐conjugate addition reaction to achieve a substrate‐independent and tolerant coating for orthogonally modulating the underwater oil wettability, optical transparency, and even mechanical properties of highly deformable porous and fibrous substrates. The post‐modification of residual chemical reactivity in the prepared coating allows to embed underwater superoleophobicity, and the β‐amino‐ester‐cross‐links improve the mechanical property of selected deformable substrates. Moreover, it displayed unperturbed performance even after prolonged (30 days) exposures in practically relevant chemically harsh aquatic conditions—including extremes of pH, artificial seawater, surfactant contaminated water, etc. The approach is successfully applied to coat various substrates—including porous, fibrous, and planar objects, and it would be useful in protecting various relevant marine infrastructures from oil/oily fouling, and various other potential applications.

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“…[ 30 ] As a result, this mineralization process is able to complete within 1–2 d, which is significantly faster than the traditional methods that are limited by the slow rate of precursor diffusion or deposition. [ 3,13,31,32 ] This biomimetic mineralization could be directly visualized according to the fast change of the ACC precursor from turbid to transparent, indicating that the ACC nanoparticles went from dispersion into the CNC template (Figure S4, Supporting Information). The thickness of the composites also increases by extending the mineralization time, confirming the growth of minerals inside the chiral template (Figure S5, Supporting Information).…”

Section: Materials Design and Synthesismentioning

confidence: 99%

Bioinspired Chiral Template Guided Mineralization for Biophotonic Structural Materials

Xiong

et al. 2022

Advanced Materials

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Nature provides numerous biomineral design inspirations for constructing structural materials with desired functionalities. However, large‐scale production of damage‐tolerant Bouligand structural materials with biologically comparable photonics remains a longstanding challenge. Here, an efficient and scalable artificial molting strategy, based on self‐assembly of cellulose nanocrystals and subsequent mineralization of amorphous calcium carbonate, is developed to produce biomimetic materials with an exceptional combination of mechanical and photonic properties that are usually mutually exclusive in synthetic materials. These biomimetic composites exhibit tunable mechanics from “strong and flexible”, which exceeds the benchmark of natural chiral materials, to “stiff and hard”, which is comparable to natural and synthetic counterparts. Especially, the biomimetic composites possess ultrahigh stiffness of 2 GPa in their fully water‐swollen state—a value well beyond hydrated crab exoskeleton, cartilage, tendon, and stiffest synthetic hydrogels, combined with exceptional strength and resilience. Additionally, these composites are distinguished by the tunable chiral structural color and water‐triggered switchable photonics that are absent in most artificial mineralized materials, as well as unique hydroplastic properties. This study opens the door for a scalable synthesis of resilient biophotonic structural materials in practical bulk form.

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Nacre-inspired underwater superoleophobic films with high transparency and mechanical robustness

Cited by 28 publications

References 59 publications

Robust and durable liquid-repellent surfaces

Robust and durable liquid-repellent surfaces

Chemically Customizing Mechanical Properties and Optical Transparency in Underwater Superoleophobic Coating

Bioinspired Chiral Template Guided Mineralization for Biophotonic Structural Materials

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