Water Detoxification by a Substrate‐Bound Catecholamine Adsorbent

Lee, Mihyun; Rho, Junsung; Lee, Dong‐Eun; Hong, Seonki; Choi, Sang-Jin; Messersmith, Phillip B.; Lee, Haeshin

doi:10.1002/cplu.201200209

Cited by 64 publications

(61 citation statements)

References 43 publications

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“…Furthermore, pDA has high binding affi nities toward various metals, including Fe, Cu, Cr, Hg, Cd, and Pb. [ 8,16,17 ] Thus, in general, metal contamination in pDAcoated surfaces has been a problem. In addition to metal ions, chemical oxidizing agents, such as sodium periodate, [ 18 ] ammonium persulfate, and potassium chlorate, [ 19 ] have been used.…”

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confidence: 99%

Microwave‐Accelerated Rapid, Chemical Oxidant‐Free, Material‐Independent Surface Chemistry of Poly(dopamine)

Lee

et al. 2016

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A simple strategy for the rapid preparation of multifunctional polydopamine (pDA) coatings is demonstrated. Microwave irradiation of the coating solution enables the formation of a ≈18 nm thick, genuine pDA coating in 15 min, which is ≈18 times faster than conventional coating. The acceleration effect results from the radical generation and temperature increase, which facilitate thermally accelerated radical polymerization of dopamine.

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confidence: 99%

Microwave‐Accelerated Rapid, Chemical Oxidant‐Free, Material‐Independent Surface Chemistry of Poly(dopamine)

Lee

et al. 2016

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“…[40][41][42] PDA capsules are expected to further enhance such adsorption efficiency due to their double interfaces, high specic surface area. However, the moderate mechanical strength of PDA capsules delays their practical applications in water purication in the form of dried powders or packing into columns under high pressure for chromatograph.…”

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confidence: 99%

Anisotropic polydopamine capsules with an ellipsoidal shape that can tolerate harsh conditions: efficient adsorbents for organic dyes and precursors for ellipsoidal hollow carbon particles

Zhang

et al. 2017

RSC Adv.

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Polymeric capsules often buckle, collapse or even break when being processed in the dried state into other materials under high temperature and pressure due to moderate mechanical rigidity. In the case of nonspherical capsules, to keep their precious anisotropic morphology intact under harsh conditions is even more challenging since the whole surface of such kinds of capsules does not experience the same stress or strain due to the different surface curvatures. In the current work, we reported a strategy to prepare polydopamine (PDA) capsules with an ellipsoidal shape and enhanced mechanical rigidity using polystyrene ellipsoids as the sacrificial anisotropic templates. Bio-inspired oxidation induced selfpolymerization of dopamine can form conformal PDA coatings on polystyrene ellipsoids of various aspect ratios and sizes. Several strategies have been exploited to increase the thickness of the PDA shell, among which, iterating PDA coating produces ellipsoidal PDA capsules with a thick and robust shell.These ellipsoidal PDA capsules can survive carbonization at temperatures as high as 800 C and were directly turned into N-doped carbon capsules with a well-defined ellipsoidal shape, excluding the necessity of removing the sacrificial templates after carbonation. Furthermore, the rigid PDA ellipsoidal capsules are efficient adsorbents for organic dyes in contaminated water and have impressive adsorption efficiencies as high as 200 mg g À1.

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“…Subsequently, they used the strong coordination bonding between catechol-functional coatings and metals for water detoxification, which is propitious to remove and regenerate heavy metals from water. [39] In enzymes catalysis field, dopamine can be utilized to fabricate new polymer-enzyme-metallic nanoparticle composite films with a high load and a high-activity of immobilized enzymes for biosensing of glucose and galactose. [40] Simultaneously, the dopamine can coat magnetic nanoparticles onto cell surfaces during the self-polymerization for facilitating the use of cells in biocatalysis ( Figures 6A and 6B).…”

Section: Intermediates Are Comprised Of Mussel-inspired Underwater Admentioning

confidence: 99%

Recent Progress of Mussel‐Inspired Underwater Adhesives

Zhang

Song

et al. 2017

Chin. J. Chem.

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Underwater adhesion is greatly desired in tissue transplantation, medical treatment, ocean transportation, and so on. However, common commercial polymeric adhesives are rather weakened and easily destroyed in water environment. In nature, some marine organisms, such as mussels, barnacles, or tube worms, exhibiting excellent underwater adhesion up to robust bonding on the rock of sea floor, can give exciting solutions to address the problem. Among these marine organisms, mussels exhibit unique underwater adhesion via the foot proteins of byssus. It has been verified that the catechol groups from the side chain of the mussel foot proteins is the main contribution to the unique underwater adhesion. Hence, inspired by the mussels' underwater adhesion, many mussel-mimetic polymers with catechol as end chains or side chains have been developed in the past decades. Here, we review recent progress of mussel-inspired underwater adhesives polymers from their catechol-functional design to their potential applications in intermediates, anti-biofouling, self-healing of hydrogels, biological adhesives, and drug delivery. The review may provide basis and help for the development of the commercial underwater adhesives.

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Water Detoxification by a Substrate‐Bound Catecholamine Adsorbent

Cited by 64 publications

References 43 publications

Microwave‐Accelerated Rapid, Chemical Oxidant‐Free, Material‐Independent Surface Chemistry of Poly(dopamine)

Microwave‐Accelerated Rapid, Chemical Oxidant‐Free, Material‐Independent Surface Chemistry of Poly(dopamine)

Anisotropic polydopamine capsules with an ellipsoidal shape that can tolerate harsh conditions: efficient adsorbents for organic dyes and precursors for ellipsoidal hollow carbon particles

Recent Progress of Mussel‐Inspired Underwater Adhesives

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