Polydopamine–polyethylene glycol–albumin antifouling coatings on multiple substrates

Goh, Sharon; Luan, Yuxia; Wang, Xiaojing; Du, Hui; Chau, Colleen; Schellhorn, Herbert E.; Brash, John L.; Chen, Hong; Fang, Qiyin

doi:10.1039/c7tb02636f

Cited by 59 publications

(28 citation statements)

References 47 publications

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“…The C 1s spectra (Fig. 4 a ) that exhibits three peaks can be assigned to the C–C, C–N, and C–O bonds in PDA structure [17]. Part of the peak at 284.6 is attributed to the residual carbon from the XPS instrument itself.…”

Section: Resultsmentioning

confidence: 99%

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Mussel‐inspired green synthesis of Ag‐coated polydopamine microspheres for selective antibacterial performance

Guo

Cai

et al. 2019

Micro & Nano Letters

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Inspired by mussels, the antimicrobial Ag-coated polydopamine microspheres (Ag-coated PDA MSs) composites are synthesised through one-pot method. Ag nanoparticles (NPs) are easily generated using PDA MSs as green reducing agents, and are well-dispersed on the surface of PDA MSs at the same time. The morphology and structure of the Ag-coated PDA MSs are characterised by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The Ag-coated PDA MSs exhibit selective antibacterial activity towards S. aureus. Due to the elevated intracellular reactive oxygen species level, the majority of S. aureus cells are killed, however, the growth of E. coli is not affected evidently in the same condition.

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Section: Resultsmentioning

confidence: 99%

“…Dopamine, a mussel-inspired biomolecule, can generate adhesive polydopamine (PDA) films and easily deposited onto virtually any substances [15][16][17]. Therefore, it is commonly used to generate PDA coating and immobilise metal NPs [18,19].…”

Section: Introductionmentioning

confidence: 99%

Mussel‐inspired green synthesis of Ag‐coated polydopamine microspheres for selective antibacterial performance

Guo

Cai

et al. 2019

Micro & Nano Letters

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“…Therefore, many studies attempted to use PDA to prepare various coatings, including antibacterial coating, 48 anticoagulation coating, 49 and antifouling coating. 50 However, there were few reports on the use of PDA as the coating of the cell sheet detachment. With respect to the concentration of dopamine for the synthesis of PDA coating has been explored by a large number of studies and demonstrated that the optimal concentration was 2 g/L, 51,52 whereupon 2 g/L dopamine was used to synthesize the PDA coating.…”

Section: Resultsmentioning

confidence: 99%

Construction of novel temperature-responsive hydrogel culture system based on the biomimetic method for stem cell sheet harvest

Fan

Nie

Chen

et al. 2019

Journal of Bioactive and Compatible Polymers

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Temperature-responsive hydrogel culture system is considered as an ideal platform for cell sheet harvest, but its complex preparation methods and harsh reaction conditions limit its application. Inspired by the marine mussels, a biomimetic method presented here is to construct a novel temperature-responsive hydrogel culture system for stem cell sheet harvest. The tissue culture polystyrene is first modified with polydopamine coating, and then amine-terminated poly(N-isopropylacrylamide) is grafted onto the coating via the Schiff base or Michael addition reaction to construct the temperature-sensitive hydrogel culture system. Then, bone marrow stromal cells are cultured on the culture system to construct cell sheets. The prepared culture system shows significant temperature-sensitive property with the grafted concentrations of poly(N-isopropylacrylamide) ranging from 0.5 to 1 g/L. Meanwhile, the constructed culture system has low cytotoxicity and facilitates the stem cell adhesion, proliferation, and cell sheet formation at 37°C. When the culture system is placed in a 20°C environment, the cell sheet can be completely detached from the surface of tissue culture polystyrene without being treated with any enzymes. More importantly, the cell morphology, cell sheet thickness, and the fibril structure of the associated proteins are similar to the cells cultured on the tissue culture polystyrene without modification. The biomimetic, simple, inexpensive, and environmentally friendly preparation of the culture system enables it to be used for the harvest of cell sheet and even applied to tissue engineering for tissue regeneration.

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“…For example, the significant increase in surface roughness of pDA coatings caused by the inevitable aggregation of oligo-DA micro-/nano-particles may limit their application in some fields with special requirements for surface roughness, e.g. biosensors [ 11 ]. Some researchers tried to make some changes by adjusting the pH value, changing the dopamine concentration, replacing the buffer system, etc., to achieve smoother pDA coatings but with little success [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Poly-dopamine, poly-levodopa, and poly-norepinephrine coatings: Comparison of physico-chemical and biological properties with focus on the application for blood-contacting devices

Tan

Gao

et al. 2021

Bioactive Materials

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Thanks to its simplicity, versatility, and secondary reactivity, dopamine self-polymerized coatings (pDA) have been widely used in surface modification of biomaterials, but the limitation in secondary molecular grafting and the high roughness restrain their application in some special scenarios. Therefore, some other catecholamine coatings analog to pDA have attracted more and more attention, including the smoother poly-norepinephrine coating (pNE), and the poly-levodopa coating (pLD) containing additional carboxyl groups. However, the lack of a systematic comparison of the properties, especially the biological properties of the above three catecholamine coatings, makes it difficult to give a guiding opinion on the application scenarios of different coatings. Herein, we systematically studied the physical, chemical, and biological properties of the three catecholamine coatings, and explored the feasibility of their application for the modification of biomaterials, especially cardiovascular materials. Among them, the pDA coating was the roughest, with the largest amount of amino and phenolic hydroxyl groups for molecule grafting, and induced the strongest platelet adhesion and activation. The pLD coating was the thinnest and most hydrophilic but triggered the strongest inflammatory response. The pNE coating was the smoothest, with the best hemocompatibility and histocompatibility, and with the strongest cell selectivity of promoting the proliferation of endothelial cells while inhibiting the proliferation of smooth muscle cells. To sum up, the pNE coating may be a better choice for the surface modification of cardiovascular materials, especially those for vascular stents and grafts, but it is still not widely recognized.

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Polydopamine–polyethylene glycol–albumin antifouling coatings on multiple substrates

Abstract: Polydopamine–PEG coatings on different substrates: effects of PDA layer properties on PEG grafting and anti-biofouling properties.

Cited by 59 publications

References 47 publications

Mussel‐inspired green synthesis of Ag‐coated polydopamine microspheres for selective antibacterial performance

Mussel‐inspired green synthesis of Ag‐coated polydopamine microspheres for selective antibacterial performance

Construction of novel temperature-responsive hydrogel culture system based on the biomimetic method for stem cell sheet harvest

Poly-dopamine, poly-levodopa, and poly-norepinephrine coatings: Comparison of physico-chemical and biological properties with focus on the application for blood-contacting devices

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