Visible-light initiated polymerization of dopamine in a neutral environment for surface coating and visual protein detection

Wang, Jinhu; Ma, Guolu; Huang, Wei; He, Yi

doi:10.1039/c8py01140k

Cited by 18 publications

(16 citation statements)

References 36 publications

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“…Here, PDA‐coating are achieved in minutes rather than hours. The PDA formation can be accelerated by irradiation with day light in presence of 9‐mesityl‐10‐methylacridinium ions as sensitizer or by UV‐light creating radical species. [34b], This triggering is also possible under basic conditions wherein normally autoxidation of DA would occur, if small amounts of sodium ascorbate are added as inhibitor.…”

Section: Resultsmentioning

confidence: 99%

Chemistry of Polydopamine – Scope, Variation, and Limitation

2019

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Polydopamine (PDA) is a polymer easily obtained by oxidation of dopamine. It is composed of indole and dopamine units in various oxidation states and to a lesser extent of pyrroles. It adheres to all type of surfaces even under water due to its abundant catechol moieties assisted by amino groups. This property together with a widespread reactivity to nucleophiles and electrophiles allowing linkage of a variety of entities renders PDA extremely interesting for various applications in biology, biomedicine, membranes, catalysis, materials and water purification. The field of PDA is violently developing. The present review gives an overview about the chemistry and properties of PDA and its analogues with the focus on recent publications. Their widespread applications are occasionally touched. Analogues are obtained by two strategies: post‐modification of PDA and oxidative polymerization of dopamine analogues. Scope and limitations of these strategies are worked out giving impulses for future research in the field.

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Section: Resultsmentioning

confidence: 99%

Chemistry of Polydopamine – Scope, Variation, and Limitation

2019

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“…Several DA polymerization pathways and the influence of experimental parameters on the structural properties and the mechanism of PDA growth are suggested in the literature. For instance, DA polymerization via the photochemical route has been shown to be initiated either by generation of ROS under UV, [18,19] in the presence of strong acridinium oxidant [21] active in the visible domain, or by an electron-transfer mechanism involving DA and pyrene photosensitizer with diphenyliodonium (DPI) salt. [20] In the first two cases, UV-and Vis-light triggered PDA deposition, the presence of oxygen was important for oxidation processes and its decline showed a decreased or even no PDA formation.…”

Section: Polymerization Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…However, this approach is not readily suitable for biological environments since UV radiation causes cell death and severe DNA damage. As an alternative, visible light has been employed with photoactive additives such as a strong acridinium photoredox catalyst [21] or iodonium salt/pyrene photosensitizer systems. [20] PDA pattering has been examined by employing different techniques such as photolithography, [1] photolithography combined with a microfluidic approach, [22] and microcontact printing.…”

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confidence: 99%

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High‐Precision Micropatterning of Polydopamine by Multiphoton Lithography

et al. 2022

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Mussel‐inspired polydopamine (PDA) initiates a multifunctional modification route that leads to the generation of novel advanced materials and their applications. However, existing PDA deposition techniques still exhibit poor spatial control, have a very limited capability of micropatterning, and do not allow local tuning of the PDA topography. Herein, PDA deposition based on multiphoton lithography (MPL) is demonstrated, which enables full spatial and temporal control with nearly total freedom of patterning design. Using MPL, 2D microstructures of complex design are achieved with pattern precision of 0.8 µm without the need of a photomask or stamp. Moreover, this approach permits adjusting the morphology and thickness of the fabricated microstructure within one deposition step, resulting in a unique tunability of material properties. The chemical composition of PDA is confirmed and its ability for protein enzyme immobilization is demonstrated. This work presents a new methodology for high‐precision and complete control of PDA deposition, enabling PDA incorporation in applications where fine and precise local surface functionalization is required. Possible applications include multicomponent functional elements and devices in microfluidics or lab‐on‐a‐chip systems.

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“…As can be seen, DPI alone and in conjunction with PT and Py sensitizers efficiently induce photopolymerization of DA in the broad wavelength range of the electromagnetic spectrum. Compared to the previously reported methods, PDA was obtained in much shorter irradiation times. pH of all the solutions decreased from ∼5.0 to ∼4.1 which is due to the proton release by the photolysis of iodonium salt.…”

mentioning

confidence: 91%

Mussel-Inspired Coatings by Photoinduced Electron-Transfer Reactions: Photopolymerization of Dopamine under UV, Visible, and Daylight under Oxygen-Free Conditions

2021

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Photoinduced electron-transfer (PET) reactions represent a powerful methodology with widespread applications in the fields of organic and synthetic polymer chemistry. Within this literature, among the various surface coating methods, marine mussel-inspired adhesive bonding by polydopamine (PDA) coatings has attracted great interest. Although various procedures for PDA synthesis have been reported, they exhibit some limitations, such as requirement of acidic or basic conditions or strong oxidants. To address these issues, here we report a simple PET protocol for PDA production under UV, visible, and daylight irradiation using diphenyliodonium salt in the presence and absence of sensitizers. This new methodology provides future directions for surface coatings and bio-functionalization.

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Visible-light initiated polymerization of dopamine in a neutral environment for surface coating and visual protein detection

Abstract: Mussel-inspired polydopamine (PDA) coating is a promising avenue for surface modification.

Cited by 18 publications

References 36 publications

Chemistry of Polydopamine – Scope, Variation, and Limitation

Chemistry of Polydopamine – Scope, Variation, and Limitation

High‐Precision Micropatterning of Polydopamine by Multiphoton Lithography

Mussel-Inspired Coatings by Photoinduced Electron-Transfer Reactions: Photopolymerization of Dopamine under UV, Visible, and Daylight under Oxygen-Free Conditions

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