Bioactive surface modifications through thermally sprayed hydroxyapatite composite coatings: a review of selective reinforcements

Jagadeeshanayaka, N.; Awasthi, Shikha; Jambagi, Sudhakar C.; Srivastava, Chandan

doi:10.1039/d2bm00039c

Cited by 31 publications

(17 citation statements)

References 429 publications

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“…The fracture toughness of HA (1 MPa.m 0.5 ) is much lower than the minimum value (2 MPa.m 0.5 ) required for a bone implant. [18] Fracture toughness is essential as it prevents the fracture and crack of bones during movement and load-bearing times. In addition, poor fracture toughness leads to lower wear resistance.…”

Section: Hydroxyapatitementioning

confidence: 99%

“…fracture toughness, tensile strength, and wear resistance of HA, renders its real application as a bioimplant material. The fracture toughness of HA (1 MPa.m 0.5 ) is much lower than the minimum value (2 MPa.m 0.5 ) required for a bone implant [18] . Fracture toughness is essential as it prevents the fracture and crack of bones during movement and load‐bearing times.…”

Section: Introductionmentioning

confidence: 99%

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A Comprehensive Review on Novel Graphene‐Hydroxyapatite Nanocomposites For Potential Bioimplant Applications

et al. 2023

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The advancements in medical treatment necessitated the development of advanced bio-implant materials for hard tissue replacement and bone regeneration. Hydroxyapatite (HA), an extreme bioresorbable material having physicochemical similarities with natural bone, seems to be a good bioimplant. Still, the ineffective mechanical properties, viz. fracture toughness, wear resistance, and tensile strength, restrict its practical utility in bioimplants. Recently, graphene-HA nanocomposites have been explored for potential bioimplant applications ascribed to their superior biocompatibility, bioactivity, osteoconductivity, and enhanced mechanical properties. The huge surface area with a two-dimensional sheet structure facilitates graphene's strong integration with HA, thus enhancing mechanical properties. These enhanced mechanical properties of graphene-HA nanocomposite are chiefly attributed to the pull-out, ridge growth, crack deflection, and grain bridging characteristics exhibited by graphene filler in the HA matrix. Further, graphene is neutral and biocompatible, thus improving the graphene-HA nanocomposite's biocompatibility. These qualities made this nanocomposite a rising star among bio-ceramic implant materials. This review presents the current scenario on the synthesis and mechanical and biological properties of graphene-hydroxyapatite nanocomposite, which seems to be a propitious material for implants in orthopaedic applications.

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Section: Hydroxyapatitementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review on Novel Graphene‐Hydroxyapatite Nanocomposites For Potential Bioimplant Applications

et al. 2023

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“…Despite the fact that HAp is an excellent material to use, its application in medicine is restricted. In addition, the remodeling time for HAp-coated implants is longer, the rate of osseointegration is lower, and there are no antimicrobial actions or features present in these implants [80][81][82]. Because of these and other constraints, HAp-coated implants' biomechanical properties need to be altered before they can be used for long-term applications.…”

Section: Figure 1 Various Potential Uses For Hap Biomaterialsmentioning

confidence: 99%

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

Mehta

Singh

2023

J. Electrochem. Sci. Eng.

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Hydroxyapatite (HAp) is still one of the most common bioactive coatings used on metal implants in orthopaedics due to its biocompatibility. The application of HAp to metallic implants can be accomplished using a variety of processes. Plasma spray (PS) coating stands out as the method of choice due to its dependability, affordability, and ability to protect metal surfaces against rust and wear. The use of HAp in medicine has been limited due to the material's unfavorable mechanical characteristics, such as brittleness, a lack of fracture toughness, and inadequate tensile strength. In addition, the remodeling durations of HAp-covered implants are significantly longer, the rate of osseointegration is significantly lower, and no antimicrobial actions or features are present in these implants. The mechanical and biological properties of HAp have been improved by applying various approaches, all of which fall under the category of surface modification tactics. Dopants are one of those strategies that are extremely successful at changing the characteristics and using them in HAp is one of those methods. As a result, this review study aims to consolidate data on implant Hap coating using the plasma spray approach and assess the benefits and problems associated with employing this method. In addition, the paper addresses how altering the structural, chemical, and mechanical features of HAp can assist in overcoming these limitations. In conclusion, it explains how the incorporation of entering the HAp structure can change the features that, when coated using the plasma spraying approach, alter the functionality of the implant.

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“…In the previous decade, 1.5 million joint replacement surgeries were annually performed worldwide . The United States Food and Drug Administration (US FDA) estimated that joint infections cost $1.5 billion at present . In the USA alone, 44 million elderly need replacement/revision surgeries; by 2030, nearly 3 to 4 million people will undergo bone replacement surgery. , …”

Section: Introductionmentioning

confidence: 99%

“…There are numerous techniques available for HA deposition on a metallic substrate. Dorozhkin described more than 60 ways; among those, plasma spraying (PS), high-velocity oxy-fuel (HVOF) spraying, flame spraying, and cold spraying are the most used thermal spray techniques for large-scale production. Among the various spray techniques, the US FDA has approved only plasma-sprayed HA coatings for commercial use .…”

Section: Introductionmentioning

confidence: 99%

An Investigation into the Relative Efficacy of High-Velocity Air-Fuel-Sprayed Hydroxyapatite Implants Based on the Crystallinity Index, Residual Stress, Wear, and In-Flight Powder Particle Behavior

Jagadeeshanayaka,

Kele,

Jambagi

2023

Langmuir

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Bioactive surface modifications through thermally sprayed hydroxyapatite composite coatings: a review of selective reinforcements

Abstract: Hydroxyapatite (HA) has been an excellent replacement for the natural bone in orthopedic applications, owing to its close resemblance; however, it is brittle and has low strength. Surface modification techniques...

Cited by 31 publications

References 429 publications

A Comprehensive Review on Novel Graphene‐Hydroxyapatite Nanocomposites For Potential Bioimplant Applications

A Comprehensive Review on Novel Graphene‐Hydroxyapatite Nanocomposites For Potential Bioimplant Applications

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

An Investigation into the Relative Efficacy of High-Velocity Air-Fuel-Sprayed Hydroxyapatite Implants Based on the Crystallinity Index, Residual Stress, Wear, and In-Flight Powder Particle Behavior

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