Hydroxyapatite coatings on Ti substrates by simultaneous precipitation and electrodeposition

Bucur, Alexandra Ioana; Linul, Emanoil; Țăranu, Bogdan-Ovidiu

doi:10.1016/j.apsusc.2020.146820

Cited by 25 publications

(25 citation statements)

References 68 publications

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“…As an alternative to solvated ionic Ca 2+ and PO 4 3precursors, the possibility of employing dispersed HAp nanoparticles were explored under simultaneous anodization-electrodeposition technique resulting in nanospherical deposits 242,243 . Furthermore, the deposition of HAp nanoslabs/nanoplates onto Ti plate is reported wherein HAp nanoslabs were synthesized prior to dispersal in deposition electrolyte 244 crystallinity and uniformity 120,245 . An external applied magnetic field facilitates in growth of hexagonal rods or flakes depending on orientation of the magnetic flux (B) with respect to electrical flux (j), either in parallel or perpendicular fashion.…”

Section: Discussionmentioning

confidence: 99%

“…The technique of simultaneous precipitation-electrodeposition, unlike simultaneous anodizationelectrodeposition, involves in deposition of HAp crystals without electrochemical modification of the cathodic material like anodization 120 . The method entails the drop-wise addition of one precursor (either Ca or P) into an electrolytic cell containing the other precursor, while simultaneously initiating potentiostatic electrodeposition (experimental parameters in Table 3).…”

Section: Simultaneous Precipitation-electrodeposition Of Hapmentioning

confidence: 99%

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Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

et al. 2022

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Section: Discussionmentioning

confidence: 99%

Section: Simultaneous Precipitation-electrodeposition Of Hapmentioning

confidence: 99%

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

et al. 2022

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“…The bonding strength between the coatings and the Ti substrates was characterized according to the ASTM C633−01 standard method. 43 Tensile adhesion tests were performed using an electronic universal testing machine (WDW-5, STAR, China), equipped with a 5 kN load-cell capacity. Before testing, both sides of the coated samples were bonded to two parallel aligned stainless-steel cylinders using modified acrylic adhesive.…”

Section: Methodsmentioning

confidence: 99%

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Zuo

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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Implant-associated infections (IAI) remains a common and devastating complication in orthopedic surgery. To reduce the incidence of IAI, implants with intrinsic antibacterial activity have been proposed. The surface functionalization and structure optimization of metallic implants can be achieved by surface modification using the phosphate chemical conversion (PCC) technique. Zinc (Zn) has strong antibacterial behavior toward a broad-spectrum of bacteria. Herein, Zn was incorporated into strontium−calcium-phosphate (SrCaP) coatings on titanium (Ti) via PCC method, and the influence of its doping amount on the phase, microstructure, antibacterial activity, and biocompatibility of the composite coating was researched. The results indicated that traces of Zn doping produced grain refinement of SrCaP coating with no significant effect on its phase and surface properties, while a higher Zn content induced its phase and microstructure transformed into zinc−strontium-phosphate (SrZn 2 (PO 4 ) 2 ). SrCaP-Zn1 and SrCaP-Zn4 represented trace and high content Zn-doped coatings, respectively, which exhibited a similar bacterial attachment for a short time but showed inhibition of biofilm formation after continuous incubation up to 24 h. The killing rates of SrCaP-Zn1 coating for Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) reached 61.25% and 55.38%, respectively. While that data increased to 83.01% and 71.28% on SrCaP-Zn4 coating due to the more-releasing Zn 2+ . Furthermore, in vitro culture of MC3T3-E1 cells proved that the Zn-doped coatings also possessed excellent biocompatibility. This study provides a new perception for the phase and microstructural optimization of phosphate coatings on implant surfaces, as well as fabricating promising coatings with excellent biocompatibility and antimicrobial properties against IAI.

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“…For the same purpose, in [49], the HAp nanoparticles were formed on Ti-Nb-Zr alloys by PED followed previous oxidation to nanotubular oxide surface layer. The simultaneous precipitation and electrodeposition of HAp were claimed to be useful for dentistry and orthopedic applications [50].…”

Section: Phosphate Coatingsmentioning

confidence: 99%

Electrodeposited Biocoatings, Their Properties and Fabrication Technologies: A Review

Zieliński¹,

Bartmański²

2020

Coatings

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Coatings deposited under an electric field are applied for the surface modification of biomaterials. This review is aimed to characterize the state-of-art in this area with an emphasis on the advantages and disadvantages of used methods, process determinants, and properties of coatings. Over 170 articles, published mainly during the last ten years, were chosen, and reviewed as the most representative. The most recent developments of metallic, ceramic, polymer, and composite electrodeposited coatings are described focusing on their microstructure and properties. The direct cathodic electrodeposition, pulse cathodic deposition, electrophoretic deposition, plasma electrochemical oxidation in electrolytes rich in phosphates and calcium ions, electro-spark, and electro-discharge methods are characterized. The effects of electrolyte composition, potential and current, pH, and temperature are discussed. The review demonstrates that the most popular are direct and pulse cathodic electrodeposition and electrophoretic deposition. The research is mainly aimed to introduce new coatings rather than to investigate the effects of process parameters on the properties of deposits. So far tests aim to enhance bioactivity, mechanical strength and adhesion, antibacterial efficiency, and to a lesser extent the corrosion resistance.

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Hydroxyapatite coatings on Ti substrates by simultaneous precipitation and electrodeposition

Cited by 25 publications

References 68 publications

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

Zinc-Doping Induces Evolution of Biocompatible Strontium–Calcium-Phosphate Conversion Coating on Titanium to Improve Antibacterial Property

Electrodeposited Biocoatings, Their Properties and Fabrication Technologies: A Review

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