Comparative study of structure and properties of thermal spray coatings using conventional and nanostructured hydroxyapatite powder, for applications in medical implants

Gkomoza, Paraskevi; Vardavoulias, M.; Pantelis, D.I.; Sarafoglou, Ch.

doi:10.1016/j.surfcoat.2018.10.044

Cited by 22 publications

(6 citation statements)

References 18 publications

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“…It can additionally help to determine the morphological changes of coatings at different time intervals in SBF after in vitro drug release tests [ 108 ]. In addition to the morphology and microstructure analysis of the coating surface [ 88 , 92 , 109 ] or cross sections [ 67 , 83 , 91 ], the thickness of the coatings and the adhesion of osteoblasts on coated implants can be investigated [ 67 , 110 , 111 ]. For example, Eawsakul et al [ 110 ] used SEM to measure the thickness of PLGA/BMP-2 coating on Ti and to study osteoblast adhesion.…”

Section: Interaction and Morphology Studiesmentioning

confidence: 99%

Analytical Techniques for the Characterization of Bioactive Coatings for Orthopaedic Implants

Kravanja

Finšgar

2021

Biomedicines

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The development of bioactive coatings for orthopedic implants has been of great interest in recent years in order to achieve both early- and long-term osseointegration. Numerous bioactive materials have been investigated for this purpose, along with loading coatings with therapeutic agents (active compounds) that are released into the surrounding media in a controlled manner after surgery. This review initially focuses on the importance and usefulness of characterization techniques for bioactive coatings, allowing the detailed evaluation of coating properties and further improvements. Various advanced analytical techniques that have been used to characterize the structure, interactions, and morphology of the designed bioactive coatings are comprehensively described by means of time-of-flight secondary ion mass spectrometry (ToF-SIMS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), 3D tomography, quartz crystal microbalance (QCM), coating adhesion, and contact angle (CA) measurements. Secondly, the design of controlled-release systems, the determination of drug release kinetics, and recent advances in drug release from bioactive coatings are addressed as the evaluation thereof is crucial for improving the synthesis parameters in designing optimal bioactive coatings.

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Section: Interaction and Morphology Studiesmentioning

confidence: 99%

Analytical Techniques for the Characterization of Bioactive Coatings for Orthopaedic Implants

Kravanja

Finšgar

2021

Biomedicines

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“…The HAp coating method is considered a solution to the absence of biocompatibility properties of metallic implant material, reduces the corrosion behavior, and prolongs the implant service life [14][15][16]. Many coating methods can be applied to coat metallic material with HAp, such as thermal spray [17][18][19], dip-coating [20], sol-gel [21], biomimetic [22], and electrophoretic deposition coating [23][24][25]. These methods have various advantages and disadvantages that have been discussed in various papers [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Effect of withdrawal speed variations on coating quality of electrophoretically deposited biogenic hydroxyapatite on AISI 316L

Taqriban,

Jamari,

Ismail

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The use of biogenic waste for multipurpose materials has started to be encouraged in the current decade to support the world’s environmental sustainability campaign. Biogenic calcium phosphate-derived materials are potential biomaterials because of their similar properties to human bone. This paper used hydroxyapatite (HAp) powder derived from green mussel shells (Perna viridis) to coat the AISI 316L metallic implant material using the electrophoretic deposition coating method. In this study, the post-deposition withdrawal speeds of 5mm/s, 3mm/s, and 1mm/s were varied to find their effect on the quality of the HAp coating layer. Crystallography, micrography, and image processing were used to characterize the coating and calculate the percentage of HAp layer and cracks. The crystallographic data shows the HAp peaks, which conclude that the green mussel shells HAp successfully coat the substrate and can be used to coat the AISI 316L implant material. However, the appearance of the substrate crystal peaks and color difference on high withdrawal speed specimens conclude that the coating layer has cracks. In conclusion, the emergence of cracks can be minimized using 1mm/s post-deposition withdrawal speed and eventually produce high-quality HAp coating.

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“…Some parameters, such as adhesive strength between substrate and coating, elements of precursors, porosity and composition of the coatings could potentially affect corrosion behavior [24]. Compared to different coating methods, plasma spray was a simple technique and contains a wide deposition rate, widespread particle size range and exhibits high -quality coatings [25,26].…”

Section: Introduction1mentioning

confidence: 99%

Evaluation of Corrosion Resistance of Bi-layered Plasma-sprayed Coating on Titanium Implants

2022

IJE

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Comparative study of structure and properties of thermal spray coatings using conventional and nanostructured hydroxyapatite powder, for applications in medical implants

Cited by 22 publications

References 18 publications

Analytical Techniques for the Characterization of Bioactive Coatings for Orthopaedic Implants

Analytical Techniques for the Characterization of Bioactive Coatings for Orthopaedic Implants

Effect of withdrawal speed variations on coating quality of electrophoretically deposited biogenic hydroxyapatite on AISI 316L

Evaluation of Corrosion Resistance of Bi-layered Plasma-sprayed Coating on Titanium Implants

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