PDA/CPP bilayer prepared via two-step immersion for accelerating the formation of a crack-free biomimetic hydroxyapatite coating on titanium substrates
Abstract
Polydopamine (PDA)/casein phosphopeptide (CPP) bilayers were prepared on titanium (Ti) substrates through a simple two-step immersion process at room temperature. The adhering PDA interlayers linked the natural biomolecule, CPP, to the Ti surface via covalent bonds. The outer layer of CPP served as a template to bind Ca 2+ and thus promoted nucleation and growth of hydroxyapatite (HA). Our results indicate that: (i) PDA and CPP can be successfully grafted onto Ti substrates; (ii) an HA coating can be formed within 1 day through the biomimetic HA coating method on the Ti substrate modified with PDA/CPP bilayer; and (iii) no cracking is observed in the HA coating, indicating stable binding between HA and the modified substrate.
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The PDA/CPP worked as the supporting template that enhanced binding between the HA and Ti substrate.
“The PDA/CPP worked as the supporting template that enhanced binding between the HA and Ti substrate.”
From Strategies for Using Polydopamine to Induce Biomineralization of Hydroxyapatite on Implant Materials for Bone Tissue Engineering (2020) · cites this paper as [50]
The HA coating formation time on the PDA/CPP substrate through the biomimetic HA coating method was less than one day, compared with the conventional pHAF method which requires 14 days.
“Moreover, the HA coating formation time on this substrate through the biomimetic HA coating method was less than one day, which was lesser as compared with the conventional pHAF method, which requires 14 days.”
From Strategies for Using Polydopamine to Induce Biomineralization of Hydroxyapatite on Implant Materials for Bone Tissue Engineering (2020) · cites this paper as [50]
The outer layer of CPP acted as a template to bind Ca2+ to promote nucleation and growth of HA in SBF.
“The outer layer of the CPP acted as a template to bind Ca2+ to promote nucleation and growth of HA in SBF.”
From Strategies for Using Polydopamine to Induce Biomineralization of Hydroxyapatite on Implant Materials for Bone Tissue Engineering (2020) · cites this paper as [50]
Cites
Mussel‐Inspired Polydopamine Coating as a Universal Route to Hydroxyapatite Crystallization
Ryu, J., Ku, S. H., Lee, H., & Park, C. B. (2010) · Advanced Functional Materials · doi:10.1002/adfm.200902347 · Cited by 778 · see citing works
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Kaushik, N., Nhat Nguyen, L., Kim, J. H., Choi, E. H., & Kumar Kaushik, N. (2020) · International Journal of Molecular Sciences · doi:10.3390/ijms21186544 · Cited by 76 · see citing works
“presented a new approach implementing casein phosphopeptide (CPP) [50].”
MethodInfluentialWu, M., Wang, T., Wang, Q., & Huang, W. (2019) · Materials Letters · doi:10.1016/j.matlet.2018.10.036 · Cited by 13 · see citing works
Self-citation
- Authors
- Wu, M., Wang, T., Zhang, J., Qian, H., Miao, R., & Yang, X.
- Affiliations
- Nanjing University of Aeronautics and Astronautics (CN)
- Corresponding author
- Wang, Tao
- Venue
- Materials Letters
- Publisher
- Elsevier BV
- Published
- 2017-11
- Volume
- 206
- Pages
- 56-59
- ISSN
- 0167-577X (ISSN-L)
- OpenAlex
- W2622011497
- Cited by
- 11
- References
- 1
- Citations by year
- 2024: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 3 · 2019: 2 · 2018: 2
- FWCI
- 0.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Materials Letters (publishedVersion)
- Funders
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
- Physical Sciences › Materials Science › Surfaces, Coatings and Films › Polymer Surface Interaction Studies
- Physical Sciences › Engineering › Mechanical Engineering › Surface Treatment and Coatings
- Keywords
- polydopamine, casein phosphopeptides, hydroxyapatite coating, titanium implants, biomimetic mineralization, crack-free coatings, calcium binding, surface modification, covalent grafting
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