Polyethyleneimine-assisted co-deposition of polydopamine coating with enhanced stability and efficient secondary modification

Li, Chun-Gong; Yang, Qinqin; Chen, Dong; Zhu, Hongliang; Chen, Jiachen; Runjin, Liu; Dang, Qi; Wang, Xiang

doi:10.1039/d2ra05130c

Cited by 16 publications

(10 citation statements)

References 44 publications

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Section: The Detachment Of Coatings After Elutioncontrasting

confidence: 55%

“…Conversely, only a slight reduction in DD was observed for both the pDA/HBPL and PDA-HBPL coatings when exposed to an alkaline solution, highlighting that the incorporation of HBPL significantly enhanced the resistance of these coatings against alkali-induced degradation. The observed enhancement in the stability of HBPL surpasses that reported for PEI [39], suggesting superior reactivity of HBPL and pDA. Subsequently, the hydrophilicity of the substrates was evaluated by characterizing the changes in water contact angle before and after elution for 2 h. As depicted in Figure 8, no significant alteration in the water contact angle was observed for any of the substrates after elution with 1.0 M HCl, which is consistent with the SEM images presented in Figure 6a-c.…”

Section: Samplecontrasting

confidence: 55%

“…The adhesion of HBPL to PVC films was found to be challenging without the synergistic effect of pDA. Furthermore, compared with that on other reported polymer surfaces such as PP and PTFE, the deposition density of pDA on PVC film was relatively low [39]. Overall, it was observed that the deposition density for PVC-pDA/HBPL was of a higher magnitude compared to that for PVC-pDA-HBPL, suggesting that co-deposition offered greater advantages in terms of achieving higher quantities of deposition as opposed to the successive deposition method.…”

Section: Morphology and Deposition Behaviormentioning

confidence: 76%

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Enhancement of the Surface Hydrophilicity of Poly(Vinyl Chloride) Using Hyperbranched Polylysine with Polydopamine

Zhang,

Wang,

et al. 2024

Coatings

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In recent years, the application of polyvinyl chloride (PVC) material has significantly expanded within the realm of biomedical materials. However, the hydrophobicity of PVC has been found to cause many adverse reactions in patients within the biomedical field. It is imperative to urgently discover viable approaches for enhancing the hydrophilicity of PVC in order to ensure its safety in biomedical applications. In this study, the surface of PVC films was modified with a combination of hyperbranched polylysine (HBPL) and polydopamine (pDA) through either simultaneous deposition with polydopamine (PVC-pDA/HBPL) or successive deposition of pDA and HBPL (PVC-pDA-HBPL), aiming to investigate the influence of this modification method on surface hydrophilicity enhancement. The surface coatings were characterized using gravimetry, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and water contact angle measurements. The results demonstrated that the incorporation of HBPL led to a significant enhancement in both the deposition amount and stability of pDA, particularly when the mass ratio of DA/HBPL was approximately 1:1. Simultaneously, the morphology of the films exhibited an increase in roughness, while surface hydrophilicity was significantly enhanced upon incorporating pDA and HBPL, and the water contact angle was decreased to 43.2°. Moreover, the detachment of PVC-pDA/HBPL and PVC-pDA-HBPL after exposure to 1.0 M NaOH solutions was considerably lower compared to that of PVC-pDA alone, indicating improved stability under strongly basic conditions. Notably, these enhancements were more pronounced for PVC-pDA/HBPL than for PVC-pDA-HBPL, indicating that HBPL may act as a cross-linker during pDA deposition primarily through intermolecular Schiff base reactions, hydrogen bonding, or Michael addition. This work represents a pioneering effort in integrating HBPL and dopamine for hydrophilic modification of PVC materials, thereby expanding the potential applications of PVC materials. Additionally, we provide novel insights into constructing a hydrophilic surface based on bionic principles and expanding the potential applications of HBPL and pDA.

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Section: The Detachment Of Coatings After Elutioncontrasting

confidence: 55%

Section: Samplecontrasting

confidence: 55%

Section: Morphology and Deposition Behaviormentioning

confidence: 76%

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Enhancement of the Surface Hydrophilicity of Poly(Vinyl Chloride) Using Hyperbranched Polylysine with Polydopamine

Zhang,

Wang,

et al. 2024

Coatings

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“…The secondary reaction ability of PDA-based codeposition coatings is identical with that of the PDA coating. − Asha et al codeposited dopamine with PEI, followed by immersion in bioinspired zwitterionic polymer and silver nitrate solution to form a nonfouling surface with silver nanoparticles (AgNPs) . Xie et al codeposited dopamine with a zwitterionic polymer, polyethylenimine- graft -sulfobetaine methacrylate, followed by immersion in silver nitrate solution, and determined that AgNPs could grow on the codeposited surface .…”

Section: Introductionmentioning

confidence: 99%

Effect of Codeposition of Polydopamine with Polyethylenimine or Poly(ethylene glycol) Coatings on Silver Nanoparticle Synthesis

2023

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This study investigated the effects of polydopamine (PDA), PDA/polyethylenimine (PEI), and PDA/poly(ethylene glycol) (PEG) deposition on silver nanoparticle (AgNP) formation. PEI or PEG with different molecular weights was mixed with dopamine at different concentrations to obtain various PDA/PEI or PDA/PEG codepositions. These codepositions were soaked in silver nitrate solution to observe AgNPs generated on the surface and then to examine the catalytic activity of AgNPs for the reduction of 4-nitrophenol to 4-aminophenol. Results revealed that AgNPs on PDA/PEI or PDA/PEG codepositions were smaller and more dispersed than those on PDA coatings. Codeposition with 0.5 mg/mL polymer and 2 mg/mL dopamine generated the smallest AgNPs in each codeposition system. The content of AgNPs on PDA/PEI codeposition first increased and then decreased with an increase in the PEI concentration. PEI with a molecular weight of 600 (PEI600) generated a higher AgNP content than did PEI with a molecular weight of 10000. The AgNP content did not change with the concentration and molecular weight of PEG. Except for the codeposition with 0.5 mg/mL PEI600, codepositions produced less silver than did the PDA coating. The catalytic activity of AgNPs on all codepositions was better than that on PDA. The catalytic activity of AgNPs on all codepositions was related to the size of AgNPs. Smaller AgNPs exhibited more satisfactory catalytic activity. The codeposition with 0.5 mg/mL PEI600 had the highest rate constant (1.64 min–1). The systematic study provides insight into the relationship between various codepositions and AgNP generation and demonstrates that the composition of these codepositions can be tuned to increase their applicability.

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“…Based on the literature, the success of membrane modification using PDA is most evident with -OH and -NH bonds. This bond indicates the attachment of the amine group specifically to the membrane substrate (Li et al, 2022).…”

Section: Membrane Characterization With Fourier Transform Infrared (F...mentioning

confidence: 97%

Improved oily wastewater rejection and flux of hydrophobic PVDF membrane after polydopamine-polyethyleneimine co-deposition and modification

Sutrisna

Mustika

Hadi

et al. 2023

South African Journal of Chemical Engineering

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Polyethyleneimine-assisted co-deposition of polydopamine coating with enhanced stability and efficient secondary modification

Abstract: The stability and grafting efficiency are important for polydopamine (pDA) coatings used as platforms for secondary grafting.

Cited by 16 publications

References 44 publications

Enhancement of the Surface Hydrophilicity of Poly(Vinyl Chloride) Using Hyperbranched Polylysine with Polydopamine

Enhancement of the Surface Hydrophilicity of Poly(Vinyl Chloride) Using Hyperbranched Polylysine with Polydopamine

Effect of Codeposition of Polydopamine with Polyethylenimine or Poly(ethylene glycol) Coatings on Silver Nanoparticle Synthesis

Improved oily wastewater rejection and flux of hydrophobic PVDF membrane after polydopamine-polyethyleneimine co-deposition and modification

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