Mussel-inspired polydopamine for bio-surface functionalization

Ding, Yifu; Floren, Michael; Tan, Wei

doi:10.1016/j.bsbt.2016.11.001

Cited by 293 publications

(233 citation statements)

References 87 publications

(116 reference statements)

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“…It is due to the presence of catechol, quinone, and amine groups in PDA structure . PDA is spontaneously formed by oxidative polymerization of dopamine‐hydrochloride at certain pH . To achieve PDA coatings, the membrane is immersed in a dopamine solution (typically pH 8.0‐8.8) for a certain period of time thus resulting spontaneous deposition of a PDA layer on the membrane surface.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic modification of polypropylene ultrafiltration membrane by air‐assisted polydopamine coating

Wardani

Ariono

Subagjo

et al. 2019

Polymers for Advanced Techs

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Coating by a mussel inspired polydopamine (PDA) is a simple and promising strategy to modify the hydrophilicity of polymer membrane surfaces. In this work, PDA coating was used to modify polypropylene (PP) ultrafiltration hollow fiber membrane. PDA coating parameters, ie, solution concentration and coating time were varied, and the effect of those parameters on membrane morphology, porosity, water contact angle, and pure water flux was investigated. In addition, air‐assisted PDA coating process was also conducted by channelling the air through PP membrane to avoid pore blocking and prevent water flux decline. The results showed that PDA coating successfully improved the hydrophilicity of PP membrane indicated by the decrease of water contact angle from 110° to 67° after coated by 3 g/L of PDA solution for 3 hours. The addition of air permeation on membrane lumen also increased pure water flux up to 511.2 L/m2.h, a 270% increase from unmodified PP membrane. It might be associated to the pore blocking prevention that has been proven by SEM image and the membrane porosity that was increased about 4%.

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Section: Introductionmentioning

confidence: 99%

Hydrophilic modification of polypropylene ultrafiltration membrane by air‐assisted polydopamine coating

Wardani

Ariono

Subagjo

et al. 2019

Polymers for Advanced Techs

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show abstract

“…The ability of keratin and polidopamine film to promote fibroblast adhesion and growth are widely documented in literature . Therefore, the cyto‐compatibility tests were performed only on the hybrid films, in order to validate their biocompatibility; thus, the human fibroblast WH1 cells growth experiments were performed on KerAzAPD red based films.…”

Section: Resultsmentioning

confidence: 99%

Mild and Effective Polymerization of Dopamine on Keratin Films for Innovative Photoactivable and Biocompatible Coated Materials

Posati

Ferroni

Aluigi

et al. 2018

Macro Materials & Eng

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Mussel‐inspired polydopamine (PD) coating represents a promising route for constructing functional materials and finely tuning or completely changing their surface properties. In this work, a mild and effective method to realize the deposition of PD on keratin‐based films is reported. Reactive oxygen species (ROS), generated by keratin films doped with a photosensitizer, e.g., Azure A (AzA), upon UV–vis and vis‐near IR irradiation, are exploited to obtain the PD coating. Interestingly, the use of vis‐near IR irradiation leads to an increased production of ROS by AzA resulting in a greater PD deposition. Compared to uncoated keratin films, the PD‐keratin coated materials show a granular but homogeneous surface and an increased hydrophilicity, maintaining the ROS generation ability of AzA. This work demonstrates a useful method to effectively and rapidly functionalize with PD materials that are sensitive to temperature, pH and UV light, such as keratin. The proposed strategy allows obtaining new multifunctional biomaterials of potential interest in tissue engineering and drug delivery; in particular, the use of PD‐keratin films for near IR laser bonding of ophthalmic tissue, which is a representative case in wound healing purpose, is shown.

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“…76 Previous research show that substrates coated with polydopamine can significantly improve cell affinity and promote cell behavior compared with uncoated substrates. 77 The adhesion of fibroblasts and megakaryocytes (bone marrow cells) to polydopamine coated surfaces has been evaluated by Lee et al 16 Fibroblast cell adhesion was supported on polydopamine coated surfaces as well as on unmodified controls, while limited megakaryocytic adhesion was seen on polydopamine coating.…”

Section: Discussionmentioning

confidence: 99%

A collagen based cryogel bioscaffold coated with nanostructured polydopamine as a platform for mesenchymal stem cell therapy

Razavi

Thakor

2018

J Biomedical Materials Res

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Cryo-hydrogels (cryogels) are polymer hydrogels formed at sub-zero temperatures. Bioscaffolds created from cryo-gels have interconnected macropores which allow for cell migration, tissue-ingrowth, unhindered diffusion of solutes and mass transport of therapeutics. In this study, we developed collagen based cryogel bioscaffolds and coated them with polydopamine using a simple two-step technique. Cryogel bioscaffolds were synthesized by collagen crosslinking at −20°C and exhibited a macroporous interconnected architecture with 75% ± 63% porosity. Two groups of pore sizes were observed: 300 ± 50 μm and 30 ± 10 μm in diameter. The addition of a polydopamine coating to cryogel bioscaffolds was confirmed using composition analysis. This resulted in a 41% ± 6 5% decrease in water uptake, 81% ± 10% decrease in swelling rate and 12% ± 3% decrease in their degree of dissolution (p < 0.05), with a 48% ± 2% increase in stiffness and 57% ± 5% increase in compressive strength (p < 0.05). Seeding adipose tissue-derived mesenchymal stem cells (AD-MSCs) into polydopamine coated-cryogel bioscaffolds resulted in cells demonstrating a 52% ± 4% increase in viability and 33% ±3% increase in proliferation when compared to ADMSCs seeded into uncoated-cryogel bioscaffolds (p < 0.05). In summary, our novel polydopamine coated-cryogel bioscaffold represents an efficient and low-cost bioscaffold platform to support MSC therapies.

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Mussel-inspired polydopamine for bio-surface functionalization

Cited by 293 publications

References 87 publications

Hydrophilic modification of polypropylene ultrafiltration membrane by air‐assisted polydopamine coating

Hydrophilic modification of polypropylene ultrafiltration membrane by air‐assisted polydopamine coating

Mild and Effective Polymerization of Dopamine on Keratin Films for Innovative Photoactivable and Biocompatible Coated Materials

A collagen based cryogel bioscaffold coated with nanostructured polydopamine as a platform for mesenchymal stem cell therapy

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