Electrophoretic deposition of PEEK/bioactive glass composite coatings on stainless steel for orthopedic applications: an optimization for in vitro bioactivity and adhesion strength

Rehman, Muhammad Atiq Ur; Baştan, Fatih Erdem; Nawaz, Aneeqa; Nawaz, Qaisar; Wadood, Abdul

doi:10.1007/s00170-020-05456-x

Cited by 36 publications

(48 citation statements)

References 45 publications

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“…The relevant size of the particles was adopted from the previous study. 29 The Ag-Mn doped MBGNs with a diameter of B180 nm and 8 nm pore diameter were synthesized via a modified Stöber method, as reported in ref. 16.…”

Section: Methodsmentioning

confidence: 99%

“…The PB layer is bio-stable and will remain on the surface of the substrate even after exposure to the physiological environment. 29 3.4 Chitosan/gelatin/Ag-Mn MBGNs coatings on 316L SS Fig. 3 shows the SEM images of the CGAgMnB coating deposited on the 316L SS substrate via EPD.…”

Section: Stability Of the Suspensionmentioning

confidence: 99%

“…The details of the in vitro bioactivity studies have recently been published. 29 CGAgMnB coatings deposited on 316L SS samples were also immersed in SBF but the formation of HA crystals was not observed even after one week of incubation (SEM image shown in Fig. S2, ESI †).…”

Section: Materials Advances Papermentioning

confidence: 99%

“…The bottom layer as in our previous study has been shown to provide bioactivity, wear resistance, and corrosion resistance. 29 Electrophoretic deposition (EPD) is a widely adopted lowtemperature processing technique for the deposition of biomaterials. 5 EPD has been utilized for achieving uniform films of various biopolymers embedded with bioceramics and biomolecules.…”

Section: Introductionmentioning

confidence: 99%

“…However, the mechanism controlling the co-deposition of biopolymers and bioceramics is not wellexplained in the literature. 29 In principle, the particles intended to be deposited are charged depending upon their pH, and then the charged particles/molecules migrate towards the oppositely charged electrode. 30 EPD has recently been studied to deposit chitosan/BG/Lawson on PB layers (the product is multistructured coatings).…”

Section: Introductionmentioning

confidence: 99%

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Ag and Mn-doped mesoporous bioactive glass nanoparticles incorporated into the chitosan/gelatin coatings deposited on PEEK/bioactive glass layers for favorable osteogenic differentiation and antibacterial activity

et al. 2020

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Section: Methodsmentioning

confidence: 99%

Section: Stability Of the Suspensionmentioning

confidence: 99%

Section: Materials Advances Papermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ag and Mn-doped mesoporous bioactive glass nanoparticles incorporated into the chitosan/gelatin coatings deposited on PEEK/bioactive glass layers for favorable osteogenic differentiation and antibacterial activity

et al. 2020

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Chitosan/gelatin‐based bioactive and antibacterial coatings deposited via electrophoretic deposition

Nawaz

Rehman

2020

J of Applied Polymer Sci

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The fabrication of biocompatible and antibacterial coatings on metallic implants remains a significant challenge for load‐bearing orthopedic implants. This study focuses on the electrophoretic deposition of chitosan/gelatin/Ag‐Mn doped mesoporous bioactive glass nanoparticles (Ag‐Mn MBGNs) composite on the PEEK/bioactive glass layer (called as multi‐structured coatings), which had been deposited electrophoretically on 316L stainless steel. The EPD parameters for the deposition of the chitosan/gelatin/Ag‐Mn MBGNs coatings were optimized via Taguchi design of experiment approach. Scanning electron microscopy images confirmed that the chitosan/gelatin/Ag‐Mn MBGNS layer was deposited on the PEEK/BG layer. The addition of biologically active metallic ions (Mn and Ag) and molecules (chitosan) showed a strong effect on the growth of bacteria. Moreover, the inclusion of Mn and Ag showed a negligible toxic effect on the bioactivity (the ability of the coating to form a bond with the natural bone) of the coatings. Furthermore, the multi‐structured coatings presented appropriate wettability and surface roughness for orthopedic applications. Overall, this study provides a direct solution to improve the bioactivity, antibacterial activity, and surface properties of deposited chitosan/gelatin coatings on orthopedic implants that are more manufacturable and translational from research to an industrial scale.

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The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti‐30Ta alloys for biomaterial implants

Halim

Yajid

Hassan

et al. 2023

J of Applied Polymer Sci

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Electrophoretic deposition was used to deposit carbon nanotube/polyether ether ketone (CNTs/PEEK) composite coatings onto porous titanium‐tantalum (Ti‐30Ta) substrates at different PEEK concentrations (4.5, 6.0, and 7.5 mg/mL). Coatings were analyzed for thickness, porosity, surface roughness, microhardness and bonding strength, with higher PEEK concentrations producing thicker and more uniform coatings. However, optimal coating thickness showed highest bonding strength; lower and higher thickness led to decreased bonding strength. The tribological properties of the CNTs/PEEK coated Ti‐30Ta samples of different thicknesses (50, 70, and 100 μm) were evaluated using ball‐on‐flat linear reciprocating sliding tests under dry and wet conditions using simulated body fluid (SBF) as a lubricant. The CNTs/PEEK coatings provided excellent tribological protection under dry friction, with thicker coatings having lower friction and negligible wear. However, under wet sliding, the coating's wear rate increased significantly due to softening of the rubbing surface caused by SBF lubrication that increase transfer film onto the counter body surface. Coating with optimal thickness of 74 μm demonstrated the lowest friction and wear under SBF lubrication due to its highest hardness and bonding strength. This study highlights the importance of controlling coating thickness in determining the performance of the CNTs/PEEK coatings for orthopedic implants.

show abstract

Electrophoretic deposition of PEEK/bioactive glass composite coatings on stainless steel for orthopedic applications: an optimization for in vitro bioactivity and adhesion strength

Cited by 36 publications

References 45 publications

Ag and Mn-doped mesoporous bioactive glass nanoparticles incorporated into the chitosan/gelatin coatings deposited on PEEK/bioactive glass layers for favorable osteogenic differentiation and antibacterial activity

Ag and Mn-doped mesoporous bioactive glass nanoparticles incorporated into the chitosan/gelatin coatings deposited on PEEK/bioactive glass layers for favorable osteogenic differentiation and antibacterial activity

Chitosan/gelatin‐based bioactive and antibacterial coatings deposited via electrophoretic deposition

The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti‐30Ta alloys for biomaterial implants

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