Polydopamine-Cu(II) Ions Functional Coatings on Zinc Wire: Surface Characterization and Degradation Behavior
5 affiliations
- 1Department of Materials Science and Engineering
- 2Michigan Technological University
- 3Department of Materials Engineering Na.C
- 4Islamic Azad University
- 5Department of Biomedical Engineering
Abstract
High Resolution Image Download MS PowerPoint Slide Bioactive surface modification of degradable zinc (Zn) vascular implants is essential for controlling biodegradation and supporting vascular healing. Here, we describe the fabrication of polydopamine coating (PDA-Cu) containing up to ∼0.8 wt % Cu 2+ ions on Zn substrates using an immersion-assisted mussel-inspired polymerization strategy. The coating is composed of densely packed PDA-Cu nanospheres with diameters of ∼130–170 nm, exhibiting an even distribution of Cu ions within the PDA matrix via Cu 2+ -catechol coordination. Thirty-day leaching tests confirmed a steady release of 0.01–0.04 ppm of Cu ions per 5 days from Zn/PDA-Cu samples in Hank’s balanced salt solution (HBSS). In vitro nitric oxide (NO) assay demonstrated enhanced catalytic NO generation in 1 mM SNAP ( S -nitroso- N -acetylpenicillamine) solution. Additionally, the PDA-Cu coating reduced the Zn corrosion rate from ∼0.8 mm/year to ∼0.4 mm/year and increased its corrosion resistance in HBSS.
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BibTeX
@article{hossain2026polydopaminecuii,
title = {{Polydopamine-Cu(II) Ions Functional Coatings on Zinc Wire: Surface Characterization and Degradation Behavior}},
author = {Md Tanvir Hossain and Hamid Reza Bakhsheshi‐Rad and Bashir Ahamed and Erico Freitas and Bruce P. Lee and Jeremy Goldman and Jaroslaw Wieslaw Drelich},
journal = {ACS Materials Au},
year = {2026},
month = may,
doi = {10.1021/acsmaterialsau.6c00093},
url = {https://doi.org/10.1021/acsmaterialsau.6c00093},
note = {CC BY},
}
RIS
TY - JOUR
TI - Polydopamine-Cu(II) Ions Functional Coatings on Zinc Wire: Surface Characterization and Degradation Behavior
AU - Md Tanvir Hossain
AU - Hamid Reza Bakhsheshi‐Rad
AU - Bashir Ahamed
AU - Erico Freitas
AU - Bruce P. Lee
AU - Jeremy Goldman
AU - Jaroslaw Wieslaw Drelich
PY - 2026
DA - 2026/05/20
JO - ACS Materials Au
DO - 10.1021/acsmaterialsau.6c00093
UR - https://doi.org/10.1021/acsmaterialsau.6c00093
AB - High Resolution Image Download MS PowerPoint Slide Bioactive surface modification of degradable zinc (Zn) vascular implants is essential for controlling biodegradation and supporting vascular healing. Here, we describe the fabrication of polydopamine coating (PDA-Cu) containing up to ∼0.8 wt % Cu 2+ ions on Zn substrates using an immersion-assisted mussel-inspired polymerization strategy. The coating is composed of densely packed PDA-Cu nanospheres with diameters of ∼130–170 nm, exhibiting an even distribution of Cu ions within the PDA matrix via Cu 2+ -catechol coordination. Thirty-day leaching tests confirmed a steady release of 0.01–0.04 ppm of Cu ions per 5 days from Zn/PDA-Cu samples in Hank’s balanced salt solution (HBSS). In vitro nitric oxide (NO) assay demonstrated enhanced catalytic NO generation in 1 mM SNAP ( S -nitroso- N -acetylpenicillamine) solution. Additionally, the PDA-Cu coating reduced the Zn corrosion rate from ∼0.8 mm/year to ∼0.4 mm/year and increased its corrosion resistance in HBSS.
SN - 2694-2461
ER -