Polycrystalline Diamond Coating of Additively Manufactured Titanium for Biomedical Applications

Rifai, Aaqil; Tran, Nhiem; Lau, D. W. M.; Elbourne, Aaron; Zhan, Hualin; Stacey, Alastair; Mayes, Edwin; Sarker, Avik; Ivanova, Elena P.; Crawford, Russell J.; Tran, Phong A.; Gibson, Brant C.; Greentree, Andrew D.; Pirogova, Elena; Fox, Kate

doi:10.1021/acsami.7b18596

Cited by 64 publications

(78 citation statements)

References 55 publications

(101 reference statements)

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“…Carbon coatings (in the form nanocrystalline or polycrystalline diamond, diamond-like carbon, amorphous carbon, carbon nanotubes, graphene) have non-cytotoxic character and are often used in the engineering of biomaterials to coat metallic biomaterials ( Figure 3), providing them better biocompatibility, what has been reported by many findings [28,[54][55][56][57]. For example, Zhang et al [54] revealed that amorphous carbon-coated β-TCP enhanced adhesion and proliferation of rat BMDSCs.…”

Section: Inorganic and Composite Coatingsmentioning

confidence: 92%

“…Moreover, in vivo experiments showed that amorphous carbon coating enhanced the early bone regeneration capacity. Rifai et al [55] showed that polycrystalline diamond coating on Ti scaffold promoted attachment and proliferation of Chinese Hamster Ovarian (CHO) cells and enhanced apatite deposition. In turn, Tien et al [56] demonstrated that ultra-nanocrystalline diamond coating on silicon microchip reduced foreign-body response and protected the biomaterial from degradation in vivo.…”

Section: Inorganic and Composite Coatingsmentioning

confidence: 99%

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Osteoconductive and Osteoinductive Surface Modifications of Biomaterials for Bone Regeneration: A Concise Review

Kazimierczak

Przekora

2020

Coatings

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The main aim of bone tissue engineering is to fabricate highly biocompatible, osteoconductive and/or osteoinductive biomaterials for tissue regeneration. Bone implants should support bone growth at the implantation site via promotion of osteoblast adhesion, proliferation, and formation of bone extracellular matrix. Moreover, a very desired feature of biomaterials for clinical applications is their osteoinductivity, which means the ability of the material to induce osteogenic differentiation of mesenchymal stem cells toward bone-building cells (osteoblasts). Nevertheless, the development of completely biocompatible biomaterials with appropriate physicochemical and mechanical properties poses a great challenge for the researchers. Thus, the current trend in the engineering of biomaterials focuses on the surface modifications to improve biological properties of bone implants. This review presents the most recent findings concerning surface modifications of biomaterials to improve their osteoconductivity and osteoinductivity. The article describes two types of surface modifications: (1) Additive and (2) subtractive, indicating biological effects of the resultant surfaces in vitro and/or in vivo. The review article summarizes known additive modifications, such as plasma treatment, magnetron sputtering, and preparation of inorganic, organic, and composite coatings on the implants. It also presents some common subtractive processes applied for surface modifications of the biomaterials (i.e., acid etching, sand blasting, grit blasting, sand-blasted large-grit acid etched (SLA), anodizing, and laser methods). In summary, the article is an excellent compendium on the surface modifications and development of advanced osteoconductive and/or osteoinductive coatings on biomaterials for bone regeneration.

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Section: Inorganic and Composite Coatingsmentioning

confidence: 92%

Section: Inorganic and Composite Coatingsmentioning

confidence: 99%

Osteoconductive and Osteoinductive Surface Modifications of Biomaterials for Bone Regeneration: A Concise Review

Kazimierczak

Przekora

2020

Coatings

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“…Meanwhile, using polycrystalline diamond as a coating on the surface of the implant is also an efficient method to improve the biocompatibility of the implant. Rifai et al [150] first applied chemical vapor deposition to apply the crystal diamond coating into the titanium alloy, which enriched the Ti-6Al-4V SLM biomedical implants application.…”

Section: Surface Modificationmentioning

confidence: 99%

Additive Manufacturing of Customized Metallic Orthopedic Implants: Materials, Structures, and Surface Modifications

Bai

Cheng

Chen

et al. 2019

Metals

111

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Metals have been used for orthopedic implants for a long time due to their excellent mechanical properties. With the rapid development of additive manufacturing (AM) technology, studying customized implants with complex microstructures for patients has become a trend of various bone defect repair. A superior customized implant should have good biocompatibility and mechanical properties matching the defect bone. To meet the performance requirements of implants, this paper introduces the biomedical metallic materials currently applied to orthopedic implants from the design to manufacture, elaborates the structure design and surface modification of the orthopedic implant. By selecting the appropriate implant material and processing method, optimizing the implant structure and modifying the surface can ensure the performance requirements of the implant. Finally, this paper discusses the future development trend of the orthopedic implant.

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“…Cleaned components are further sterilized with autoclave, gamma irradiation, oxygen plasma, or ultraviolet light. Recently, it was discovered that polycrystalline diamond (PCD) can be applied to coat implants with multiple benefits [33]. PCD coating could be applied for completely sealing off residual abrasives on waterjet-machined implants.…”

Section: Out-of-plane Curved Featuresmentioning

confidence: 99%

Advanced Waterjet Technology for Machining Curved and Layered Structures

Liu¹

2019

Curved and Layered Structures

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Considerable advancements in waterjet technology take advantage of its inherent merits as a versatile machine tool have been achieved in recent years. Such advancements include, but are not limited to, process automation, machining precision, multimode machining of most materials from macro to micro scales, and cost effectiveness with fast turnaround. In particular, waterjet as a cold cutting tool does not introduce heat-affected zones (HAZ) and preserves the integrity of parent materials. As such, for heat-sensitive materials, its cutting speed is over ten times faster than those of thermal-based tools, such as solid-state lasers, electric discharge machining (EDM), and plasmas cutting. Although waterjet is basically a 2D machined tool, novel multi-axis accessories were developed to enable 3D machining and for machining on workpieces with 3D geometry. For composites, waterjet unlike mechanical routers is capable of minimizing or mitigating tearing and fraying. CNC hard tools that are in direct contact with highly abrasive composite matrix often experience rapid wearing while the heat generated by machining processes induces thermal damage to the composite. This is a nonissue for waterjet as it is a noncontact tool. The only issue for machining composites with waterjet was the damage caused by large stagnating pressure developed inside blind holes during the initial piercing operation (before breakthrough). Considerable effort was made to understand and resolve the waterjet piercing damage issue. For extremely precise parts, waterjet can serve advantageously as a near-net shaping tool; the parts can then be finished by light trimming with proper precision tools. Since the bulk of the material is removed by waterjet, the operating lives of the precision tools can be greatly extended. This paper presents a collection of waterjet-machined samples to demonstrate many benefits by applying waterjet for multimode machining of curved and layered structures.

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Polycrystalline Diamond Coating of Additively Manufactured Titanium for Biomedical Applications

Cited by 64 publications

References 55 publications

Osteoconductive and Osteoinductive Surface Modifications of Biomaterials for Bone Regeneration: A Concise Review

Osteoconductive and Osteoinductive Surface Modifications of Biomaterials for Bone Regeneration: A Concise Review

Additive Manufacturing of Customized Metallic Orthopedic Implants: Materials, Structures, and Surface Modifications

Advanced Waterjet Technology for Machining Curved and Layered Structures

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