Abstract
The different thickness (Fe/Pd)n coatings were prepared by vacuum ion plating technology on a pure Ti substrate. The (Fe/Pd)n coatings were magnetized using an MC-4000 high-pressure magnetizing machine. Then, the effect of the (Fe/Pd)n coating thickness on the magnetic properties was studied. The surface and section morphology, composition, phase structure, magnetic properties, and biocompatibility of the (Fe/Pd)n coatings were studied by scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and CCTC-1 digital flux field measurement. The results showed that the (Fe/Pd)n coatings were granular, smooth, and compact, without cracks. In addition the (Fe/Pd)n coatings formed an L10 phase with a magnetic face-centered tetragonal-ordered structure after heat treatment. With the increase in the thickness of (FePd)n coatings, the content of L10 FePd phase increased and the remanence increased. The remanence values of the Fe/Pd, (Fe/Pd)5, (Fe/Pd)10, and (Fe/Pd)15 magnetic coatings were 0.83 Gs, 5.52 Gs, 7.14 Gs, and 7.94 Gs, respectively. Additionally, the (Fe/Pd)n magnetic coatings showed good blood compatibility and histocompatibility.
Highlights
Ti and Ti alloys have a high specific strength, low elastic modulus, good corrosion resistance, and excellent biocompatibility, and they have been widely used in aerospace, chemical, biomedical fields, etc. [1–4]
Because of the exudation of ions on the surface of metal vascular stents, the intimal hyperplasia of the inner wall of blood vessels promotes the formation of thrombosis, and postoperative restenosis still exists, which seriously affects the development of interventional heart disease [11,12]
The absorption value of each well was measured by enzyme-linked immunosorbent of dimethyl sulfoxide (DMSO) was added; the crystals were fully dissolved by shock for assay at 540 nm; cell viability was calculated as follows: 10 min
Summary
The (Fe/Pd)n magnetic coatings showed good blood compatibility and histocompatibility.
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