A multi-textured calcium phosphate coating for hard tissue via laser surface engineering

Kurella, Anil; Dahotre, Narendra B.

doi:10.1007/s11837-006-0144-3

Cited by 9 publications

(4 citation statements)

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“…Then, the suspension is sprayed onto the substrate surfaces to create a coating, which is then air dried to remove the moisture, followed by direct laser melting using either continuous wave or pulsed laser beams to produce strong bonds between the calcium orthophosphate coating and the substrate (Paital and Dahotre 2007, 2008, 2009a, 2009b; Kurella and Dahotre 2006. A schematic setup of a direct laser melting system is available in literature (Paital and Dahotre 2009a).…”

Section: Reviewmentioning

confidence: 99%

Calcium orthophosphate coatings, films and layers

Dorozhkin¹

2012

Prog Biomater

118

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In surgical disciplines, where bones have to be repaired, augmented or improved, bone substitutes are essential. Therefore, an interest has dramatically increased in application of synthetic bone grafts. As various interactions among cells, surrounding tissues and implanted biomaterials always occur at the interfaces, the surface properties of the implants are of the paramount importance in determining both the biological response to implants and the material response to the physiological conditions. Hence, a surface engineering is aimed to modify both the biomaterials, themselves, and biological responses through introducing desirable changes to the surface properties of the implants but still maintaining their bulk mechanical properties. To fulfill these requirements, a special class of artificial bone grafts has been introduced in 1976. It is composed of various mechanically stable (therefore, suitable for load bearing applications) biomaterials and/or bio-devices with calcium orthophosphate coatings, films and layers on their surfaces to both improve interactions with the surrounding tissues and provide an adequate bonding to bones. Many production techniques of calcium orthophosphate coatings, films and layers have been already invented and new promising techniques are continuously investigated. These specialized coatings, films and layers used to improve the surface properties of various types of artificial implants are the topic of this review.Electronic supplementary materialThe online version of this article (doi:10.1186/2194-0517-1-1) contains supplementary material, which is available to authorized users.

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Section: Reviewmentioning

confidence: 99%

Calcium orthophosphate coatings, films and layers

Dorozhkin¹

2012

Prog Biomater

118

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“…Unfortunately, due to the high process temperatures required to melt CaPO 4 , thermal decomposition of the latter occurs. Thus, the residue is always a complex mixture of various phases and/or compounds [179,[669][670][671][672][673]. A schematic configuration of the direct laser melting system can be found in the literature [179].…”

Section: Direct Laser Meltingmentioning

confidence: 99%

There Are over 60 Ways to Produce Biocompatible Calcium Orthophosphate (CaPO4) Deposits on Various Substrates

Dorozhkin

2023

J. Compos. Sci.

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A The present overview describes various production techniques for biocompatible calcium orthophosphate (abbreviated as CaPO4) deposits (coatings, films and layers) on the surfaces of various types of substrates to impart the biocompatible properties for artificial bone grafts. Since, after being implanted, the grafts always interact with the surrounding biological tissues at the interfaces, their surface properties are considered critical to clinical success. Due to the limited number of materials that can be tolerated in vivo, a new specialty of surface engineering has been developed to desirably modify any unacceptable material surface characteristics while maintaining the useful bulk performance. In 1975, the development of this approach led to the emergence of a special class of artificial bone grafts, in which various mechanically stable (and thus suitable for load-bearing applications) implantable biomaterials and artificial devices were coated with CaPO4. Since then, more than 7500 papers have been published on this subject and more than 500 new publications are added annually. In this review, a comprehensive analysis of the available literature has been performed with the main goal of finding as many deposition techniques as possible and more than 60 methods (double that if all known modifications are counted) for producing CaPO4 deposits on various substrates have been systematically described. Thus, besides the introduction, general knowledge and terminology, this review consists of two unequal parts. The first (bigger) part is a comprehensive summary of the known CaPO4 deposition techniques both currently used and discontinued/underdeveloped ones with brief descriptions of their major physical and chemical principles coupled with the key process parameters (when possible) to inform readers of their existence and remind them of the unused ones. The second (smaller) part includes fleeting essays on the most important properties and current biomedical applications of the CaPO4 deposits with an indication of possible future developments.

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“…Sameer R Paital et al have given a special emphasis on Ca-P based coatings obtained by direct melting using a continuous wave and pulsed Nd: YAG systems [22]. Kurella et al [22][23][24] biomineralizaton for the laser-coated Ca-P samples compared to bare Ti-6Al-4V, which can be attributed to the alteration in surface chemistry following laser processing. Fig.…”

Section: Bio-coatingmentioning

confidence: 99%

The state-of-the-art laser bio-cladding technology

Liu

Fuh

2010

SPIE Proceedings

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The current state and future trend of laser bio-cladding technology are discussed. Laser bio-cladding is used in implants including fabrication of metal scaffolds and bio-coating on the scaffolds. Scaffolds have been fabricated from stainless steel, Co-based alloy or Ti alloy using laser cladding, and new laser-deposited Ti alloys have been developed. Calcium phosphate bioceramic coatings have been deposited on scaffolds with laser to improve the wear resistence and corrosion resistence of implants and to induce bone regeneration. The types of biomaterial devices currently available in the market include replacement heart valve prosthesis, dental implants, hip/knee implants, catheters, pacemakers, oxygenators and vascular grafts. Laser bio-cladding process is attracting more and more attentions of people.

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A multi-textured calcium phosphate coating for hard tissue via laser surface engineering

Cited by 9 publications

References 5 publications

Calcium orthophosphate coatings, films and layers

Calcium orthophosphate coatings, films and layers

There Are over 60 Ways to Produce Biocompatible Calcium Orthophosphate (CaPO4) Deposits on Various Substrates

The state-of-the-art laser bio-cladding technology

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