Special Issue "Calcium Phosphate and Bioglass Materials for Bone Implant Applications"

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Bioactive Coatings and Biointerfaces".

Deadline for manuscript submissions: 31 December 2022 | Viewed by 3161

Special Issue Editors

Dr. Richard Drevet
E-Mail Website
Guest Editor
Department of Physical Electronics, Masaryk University, Brno, Czech Republic
Interests: coatings and films; characterization and testing; materials science; biomaterials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Hicham Benhayoune
E-Mail Website
Guest Editor
Institut de Thermique, Mécanique et Matériaux (ITheMM), Université de Reims Champagne-Ardenne (URCA), Reims, France
Interests: electrochemical deposition; electrophoretic deposition; biomaterials; prosthetic coatings; calcium phosphates; bioactif galsses; bone substituts; electron microscopy; X-ray microanalysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

At present, the academic and industrial research efforts to improve the lifespan of bone implant materials are growing more and more due to an increasing worldwide clinical demand in skeletal repair, particularly for orthopaedic and dental surgeries. To reach this objective, many research labs focus their works on improving the osseointegration of bone implants by modifying the surface of prosthetic alloys with bioactive coatings made of calcium phosphate or bioglass. These coatings support the bone cells’ growth at the surface of the implant, promoting the formation of an intimate link with the surrounding bone tissues.

Several methods can be used to synthesize bioactive coatings on prosthetic alloys such as plasma spraying, magnetron sputtering, pulsed laser-deposition, electrophoretic deposition or electrodeposition. Particularly, the low-temperature processes can be used to add organic components (polymers, proteins, drugs, etc.) inside the prosthetic coatings in order to enhance the biological and mechanical properties of the biomaterials.

In that framework, this Special Issue aims at presenting the latest developments in this field.

In particular, the topics of interest include but are not limited to:

  • Calcium phosphate coatings for bone implant applications;
  • Bioglass coatings for bone implant applications;
  • Functionalization of biomaterials;
  • Bone implants with enhanced biological properties;
  • Bone implants with enhanced mechanical properties.

Dr. Richard Drevet
Prof. Dr. Hicham Benhayoune
Guest Editors

Manuscript Submission Information

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Keywords

  • calcium phosphate
  • bioglass
  • bone implant
  • functionalization of biomaterials
  • biomaterials with enhanced properties

Published Papers (2 papers)

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Review

Review
Electrodeposition of Calcium Phosphate Coatings on Metallic Substrates for Bone Implant Applications: A Review
Coatings 2022, 12(4), 539; https://doi.org/10.3390/coatings12040539 - 17 Apr 2022
Viewed by 831
Abstract
This review summaries more than three decades of scientific knowledge on electrodeposition of calcium phosphate coatings. This low-temperature process aims to make the surface of metallic bone implants bioactive within a physiological environment. The first part of the review describes the reaction mechanisms [...] Read more.
This review summaries more than three decades of scientific knowledge on electrodeposition of calcium phosphate coatings. This low-temperature process aims to make the surface of metallic bone implants bioactive within a physiological environment. The first part of the review describes the reaction mechanisms that lead to the synthesis of a bioactive coating. Electrodeposition occurs in three consecutive steps that involve electrochemical reactions, pH modification, and precipitation of the calcium phosphate coating. However, the process also produces undesired dihydrogen bubbles during the deposition because of the reduction of water, the solvent of the electrolyte solution. To prevent the production of large amounts of dihydrogen bubbles, the current density value is limited during deposition. To circumvent this issue, the use of pulsed current has been proposed in recent years to replace the traditional direct current. Thanks to breaking times, dihydrogen bubbles can regularly escape from the surface of the implant, and the deposition of the calcium phosphate coating is less disturbed by the accumulation of bubbles. In addition, the pulsed current has a positive impact on the chemical composition, morphology, roughness, and mechanical properties of the electrodeposited calcium phosphate coating. Finally, the review describes one of the most interesting properties of electrodeposition, i.e., the possibility of adding ionic substituents to the calcium phosphate crystal lattice to improve the biological performance of the bone implant. Several cations and anions are reviewed from the scientific literature with a description of their biological impact on the physiological environment. Full article
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Review
Structural Changes of Hydroxylapatite during Plasma Spraying: Raman and NMR Spectroscopy Results
Coatings 2021, 11(8), 987; https://doi.org/10.3390/coatings11080987 - 19 Aug 2021
Cited by 1 | Viewed by 773
Abstract
Functional osseoconductive coatings based on hydroxylapatite (HAp) and applied preferentially by atmospheric plasma spraying to medical implant surfaces are a mainstay of modern implantology. During contact with the hot plasma jet, HAp particles melt incongruently and undergo complex dehydration and decomposition reactions that [...] Read more.
Functional osseoconductive coatings based on hydroxylapatite (HAp) and applied preferentially by atmospheric plasma spraying to medical implant surfaces are a mainstay of modern implantology. During contact with the hot plasma jet, HAp particles melt incongruently and undergo complex dehydration and decomposition reactions that alter their phase composition and crystallographic symmetry, and thus, the physical and biological properties of the coatings. Surface analytical methods such as laser-Raman and nuclear magnetic resonance (NMR) spectroscopies are useful tools to assess the structural changes of HAp imposed by heat treatment during their flight along the hot plasma jet. In this contribution, the controversial information is highlighted on the existence or non-existence of oxyapatite, i.e., fully dehydrated HAp as a thermodynamically stable compound. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

 

Planned Paper 1

Title: Optimization of Sono-Electrodeposition Process for Various Cations Incorpororation into Calcium-Deficient Hydroxyapatite Deposited on Carbon Fiber Cloth
Authors: Sylvie Bonnamy, Florian Olivier, et al.
Affiliation: Centre National de la Recherche Scientifique (CNRS), University Orléans, ICMN UMR 7374, F-45071 Orléans, France

 
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