Dopamine‐Induced Superhydrophobic Melamine Foam for Oil/Water Separation

Xu, Zhanglian; Miyazaki, Kôji; Hori, Teruo

doi:10.1002/admi.201500255

Cited by 85 publications

(47 citation statements)

References 25 publications

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“…Also, still dopamine solutions have been exploited to create a gradient of polydopamine thickness on angled substrates, demonstrating the importance of the oxygen diffusion and concentration on polydopamine formation . This is confirmed by experiments in which exogenous oxygen was introduced to agitated coating reactions, significantly accelerating polymerization kinetics and generating more homogeneous and smooth polydopamine coatings …”

Section: Catecholamine Polymers: Chemistry and Structurementioning

confidence: 79%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

278

223

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Almost ten years ago, Lee et al. [13] formulated a universal adhesive coating based on observation of the strong attachment by mussels through their byssal threads to virtually all types of inorganic and organic surfaces. The amino acid compositions of the mussel foot proteins that generate the attachment are rich in catechol and amine groups. [13][14][15] These groups associate under marine conditions, forming strong covalent and noncovalent interactions with substrates. [13] This led to the idea that both catechol and amine groups were crucial in forming robust, wide spectrum adhesive nanolayers [16,17] and consequently dopamine was conceived as a powerful building block for spontaneous deposition of thin polymer films. The dopamine monomer is deposited onto unadulterated surfaces through self-assembly and oxidative cross-linking from mild pH aqueous solution in a rapid reaction. This results in a durable, nanoscale, conformal, and hydrophilic coating that can be readily modified to introduce specific surface chemistries for a particular application. [18][19][20][21][22] These bioinspired, polydopamine materials are chemically and structurally indistinguishable from eumelanins found in the human body, [23,24] providing excellent biocompatibility. Additionally, polydopamine has broad electromagnetic absorption and excellent photothermal energy conversion [25] as well as having ionic-electronic hybrid conductivity. [26] Along with the excellent coating performance, these properties provide a vast array of potential applications for polydopamine materials.In this article, we explain what is known about polydopamine and related catecholamine coatings; their formation, the adhesion mechanism, and their physicochemical properties and we also review the applications of these materials (Figure 1). Since 2011, there have been a number of reviews on this subject matter, including general reviews on the physicochemical properties of polydopamine coatings [11,20,[27][28][29] and their applications. [20,27,30] There are also a number of more specific reviews on the chemical synthesis and modulation of polycatecholamine coatings, [31] the biomedical applications of these coatings, [8,[32][33][34] their electronic properties, [26,35] the use of polydopamine to make films at fluid interfaces, [36] in hierarchically constructed particles, [33] and capsules, [30] exploitation of polycatecholamine coatings in membrane filtration, [37] polydopamine-derived carbon materials, [38] and the use of coordination chemistry in catechol-based materials. [39] Nonetheless, this area of research is growing so rapidly [25,27] that many recent Polydopamine and related polycatecholamines can be easily deposited onto almost any surface from mild, aqueous solution. This results in durable, nanoscale coatings that exhibit high biocompatibility and have useful chemical and electronic properties. Additionally, these materials can be readily chemically and physically modified, and consequently, they are used extensively for surface modification. This ...

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Section: Catecholamine Polymers: Chemistry and Structurementioning

confidence: 79%

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Barclay

Hegab

Clarke

et al. 2017

Adv Materials Inter

278

223

View full text Add to dashboard Cite

show abstract

“…This phenomenon is induced by the balance between the roughness of the surfaces and the hydrophilicity arising from Ag NPs. As we know, the introduction of Ag NPs with fluoridated surfaces will increase the roughness of the surfaces, making the surfaces more hydrophobic . However, too much Ag NPs at fixed amount of PFDT lead to a declination in water contact angle because undecorated Ag NPs are hydrophilic ( Figure a).…”

Section: Resultsmentioning

confidence: 99%

“…Superhydrophobic surfaces have received significant attention for their promising applications such as self‐cleaning materials, microdroplet transportation, antireflection, and oil–water separation . The adhesion of liquid droplets on surfaces plays a crucial role in determining the dynamic properties of the droplets .…”

Section: Introductionmentioning

confidence: 99%

Multiple Liquid Manipulations on Patterned Surfaces with Tunable Adhesive Property

Zhong

et al. 2017

Adv Materials Inter

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Micro/nanostructured surfaces with designable wettability show great promise in many fields. This paper reports a new strategy for fabricating superhydrophobic surfaces with tunable water adhesion force by combining multiscale surface structures and mussel‐inspired surface chemistry, which can be used for multiple liquid manipulations. Highly ordered porous films prepared by the breath figure method enable convenient construction of surfaces with honeycomb‐patterned or nanosized pincushion‐like structures. Multiple liquid manipulations including no‐loss transportation of water droplets, water collection, programmable movement of water droplets, and chemical reaction monitoring are demonstrated on the micro/nanostructured surfaces. The proposed method is facile, energy‐efficient, and can be conducted for the preparation of superhydrophobic surfaces with high contrast adhesion patterns.

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“…Xu et al. invented a robust superhydrophobic melamine foam by a dopamine‐induced biomimic method . The foam could absorb 60–130 times its dry weight towards oils and organic solvents, and showed good recyclability in a mild condition.…”

Section: Removal Of Floating and Underwater Insoluble Organic Liquidsmentioning

confidence: 99%

Removal of Organic Pollutants from Water Using Superwetting Materials

Zhang

Wang

2017

The Chemical Record

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The frequent occurrence of water pollution accidents and the leakage of organic pollutants have caused severe environmental and ecological crisis. It is thus highly imperative to find efficient materials to solve the problem. Inspired by the lotus leaf, superwetting materials are receiving increasing attention in the field of removal of organic pollutants from water. Various superwetting materials have been successfully generated and integrated into devices for removal of organic pollutants from water. On the basis of our previous work in the field, we summarized in this account the progress of removal of (1) floating and underwater insoluble, (2) emulsified insoluble, and (3) both insoluble and soluble organic pollutants from water using superwetting materials including superhydrophobic & superoleophilic materials, superhydrophilic & underwater superoleophobic materials, and materials with controllable wettability. The superwetting materials are in the forms of 2D porous materials, 3D porous materials and particles, etc. Finally, the current state and future challenges in this field are discussed. We hope this account could shed light on the design of novel superwetting materials for efficient removal of organic pollutants from water.

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Dopamine‐Induced Superhydrophobic Melamine Foam for Oil/Water Separation

Cited by 85 publications

References 25 publications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Versatile Surface Modification Using Polydopamine and Related Polycatecholamines: Chemistry, Structure, and Applications

Multiple Liquid Manipulations on Patterned Surfaces with Tunable Adhesive Property

Removal of Organic Pollutants from Water Using Superwetting Materials

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