Surface Characteristics of a Self-Polymerized Dopamine Coating Deposited on Hydrophobic Polymer Films
Abstract
This study aims to explore the fundamental surface characteristics of polydopamine (pDA)-coated hydrophobic polymer films. A poly(vinylidene fluoride) (PVDF) film was surface modified by dip coating in an aqueous solution of dopamine on the basis of its self-polymerization and strong adhesion feature. The self-polymerization and deposition rates of dopamine on film surfaces increased with increasing temperature as evaluated by both spectroscopic ellipsometry and scanning electronic microscopy (SEM). Changes in the surface morphologies of pDA-coated films as well as the size and shape of pDA particles in the solution were also investigated by SEM, atomic force microscopy (AFM), and transmission electron microscopy (TEM). The surface roughness and surface free energy of pDA-modified films were mainly affected by the reaction temperature and showed only a slight dependence on the reaction time and concentration of the dopamine solution. Additionally, three other typical hydrophobic polymer films of polytetrafluoroethylene (PTFE), poly(ethylene terephthalate) (PET), and polyimide (PI) were also modified by the same procedure. The lyophilicity (liquid affinity) and surface free energy of these polymer films were enhanced significantly after being coated with pDA, as were those of PVDF films. It is indicated that the deposition behavior of pDA is not strongly dependent on the nature of the substrates. This information provides us with not only a better understanding of biologically…
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In oxidative self-polymerization, dopamine monomers undergo deprotonation and oxidation by dissolved oxygen, followed by intramolecular cyclization and subsequent polymerization.
“Under these conditions, dopamine monomers undergo deprotonation and oxidation by dissolved oxygen, followed by intramolecular cyclization and subsequent polymerization.”
From Polydopamine-Based Biomaterials in Oral Medicine: Applications, Mechanisms, and Translational Challenges (2026) · cites this paper as [3]
Liquid-phase oxidative self-polymerization remains the most classical and widely adopted method for PDA fabrication.
“Among the available approaches, liquid-phase oxidative self-polymerization remains the most classical and widely adopted method for PDA fabrication.”
From Polydopamine-Based Biomaterials in Oral Medicine: Applications, Mechanisms, and Translational Challenges (2026) · cites this paper as [3]
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Self-citationGao, X., Song, J., Ji, P., Zhang, X., Li, X., Xu, X., Wang, M., Zhang, S., Deng, Y., Deng, F., et al. (2016) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b12413 · Cited by 170 · see citing works
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Dopaminergic effects on in vitro osteogenesis
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“1,3 Under these conditions, dopamine monomers undergo deprotonation and oxidation by dissolved oxygen, followed by intramolecular cyclization and subsequent polymerization.”
- Authors
- Jiang, J., Zhu, L., Zhu, L., Zhu, B., & Xu, Y.
- Affiliations
- Zhejiang University (CN)
- MOE Key Laboratory of Macromolecule Synthesis and Functionalization, Department of Polymer Science and Engineering, and The Engineering Research Center of Membrane and Water Treatment Technology, Ministry of Education, Zhejiang University, Hangzhou 310027, PR China
- Corresponding author
- Zhu, Lijing
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-11-08
- Volume
- 27
- Issue
- 23
- Pages
- 14180-14187
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2084538675
- Cited by
- 750
- References
- 1
- Citations by year
- 2026: 28 · 2025: 35 · 2024: 43 · 2023: 48 · 2022: 70 · 2021: 73 · 2020: 77 · 2019: 63 · 2018: 78 · 2017: 60 · 2016: 50 · 2015: 40 · 2014: 40 · 2013: 32 · 2012: 13
- FWCI
- 12.57
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Langmuir (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Surfaces, Coatings and Films › Polymer Surface Interaction Studies
- Physical Sciences › Materials Science › Surfaces, Coatings and Films › Surface Modification and Superhydrophobicity
- Physical Sciences › Engineering › Mechanical Engineering › Polymer Science and Applications
- Keywords
- polydopamine coating, self-polymerization, hydrophobic polymer films, polyvinylidene fluoride, polytetrafluoroethylene, polyethylene terephthalate, polyimide, dip coating, surface modification, surface energy, surface roughness, reaction temperature, deposition rate
- MeSH terms
- Dopamine, Fluorocarbon Polymers, Indoles, Membranes, Artificial, Particle Size, Polymers, Polyvinyls, Surface Properties, Molecular Structure, Hydrophobic and Hydrophilic Interactions
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