Additively Manufactured Magnesium-Based Bio-Implants and their Challenges

Behera, Manisha; Panemangalore, Devadas Bhat; Shabadi, Rajashekhara

doi:10.1007/s41403-021-00241-y

Cited by 10 publications

(2 citation statements)

References 129 publications

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“…The utilization of degradable biomedical implants featuring bioactive ceramic coatings has the potential to expedite the process of wound healing [229]. The biodegradability of the materials used in biomedical implants must match the body's healing process to promote the maximum healing and minimize side effects [230].…”

Section: Biodegradabilitymentioning

confidence: 99%

Powder Bed Fusion 3D Printing in Precision Manufacturing for Biomedical Applications: A Comprehensive Review

Joshua,

Raj,

Hameed Sultan

et al. 2024

Materials

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Precision manufacturing requirements are the key to ensuring the quality and reliability of biomedical implants. The powder bed fusion (PBF) technique offers a promising solution, enabling the creation of complex, patient-specific implants with a high degree of precision. This technology is revolutionizing the biomedical industry, paving the way for a new era of personalized medicine. This review explores and details powder bed fusion 3D printing and its application in the biomedical field. It begins with an introduction to the powder bed fusion 3D-printing technology and its various classifications. Later, it analyzes the numerous fields in which powder bed fusion 3D printing has been successfully deployed where precision components are required, including the fabrication of personalized implants and scaffolds for tissue engineering. This review also discusses the potential advantages and limitations for using the powder bed fusion 3D-printing technology in terms of precision, customization, and cost effectiveness. In addition, it highlights the current challenges and prospects of the powder bed fusion 3D-printing technology. This work offers valuable insights for researchers engaged in the field, aiming to contribute to the advancement of the powder bed fusion 3D-printing technology in the context of precision manufacturing for biomedical applications.

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Section: Biodegradabilitymentioning

confidence: 99%

Powder Bed Fusion 3D Printing in Precision Manufacturing for Biomedical Applications: A Comprehensive Review

Joshua,

Raj,

Hameed Sultan

et al. 2024

Materials

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“…16 However, the rate at which implant material degrades must match the speed of bone fixation. 17 Mechanical properties like strength, elasticity, and load-bearing capacity are also desirable. 18 Many researchers worked on them to improve the mechanical properties and reduce the magnesium alloy's degradation rate.…”

Section: Introductionmentioning

confidence: 99%

Preparation and evaluation of HA–PP coating on AZ31B magnesium alloy for implant applications

Singh,

Mahto,

Malik

2024

Surface Engineering

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To make Mg alloy implants have better corrosion resistance and reduced degradation rate in the human body, hydroxyapatite (HA), polypropylene (PP), and HA+PP coatings were added to the surface of AZ31B through dip coating. Coated samples were tested for weight differences, corrosion rate, surface roughness, and microscopic view. Scanning electron microscopy and energy dispersive spectroscopy analysis confirm coating on the substrate surfaces. The potentiodynamic polarisation test result shows that the corrosion rate in the uncoated substrate (10.138 mm/y) was higher compared to HA-coated = 0.5084 mm/y, PP-coated = 0.442 mm/y, and HA/PP-coated = 0.3275 mm/y. After 14 days, weight loss (5.5%) was highest in the uncoated and lowest in the HA-PP-coated (0.9%). Deposition of the bone mineral was higher on the HA-coated sample, showing superior bone integration properties. Hybrid coating improved electrochemical properties compared to HA coating on Mg alloy.

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Revolutionising orthopaedic implants—a comprehensive review on metal 3D printing with materials, design strategies, manufacturing technologies, and post-process machining advancements

Shaikh,

Kahwash,

et al. 2024

Int J Adv Manuf Technol

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This paper conceptualises an understanding of advanced manufacturing methods to develop 3D-printed metallic orthopaedic implants, including a brief discussion on post-process machining. The significance of Metallic Additive Manufacturing (MAM) and its practicality for industrial applications is discussed through a juxtaposition with conventional casting and machining approach. Different alloys and suitable MAM techniques are thoroughly reviewed to determine optimum operating conditions. Although MAM can produce near-net shape parts, post-processing is an unavoidable requirement to improve surface quality and dimensional accuracy. A comparative study is presented, highlighting the importance of machining for post-processing in terms of cost savings and performance. Different materials are evaluated aiming to overcome problems associated with existing orthopaedic implants. The consequence of bone-implant mechanical mismatch leading to stress shielding and inadequate corrosion properties obstructing biodegradability are explored in detail. The effect of additive manufacturing parameters on mechanical, corrosion, and surface properties including biocompatibility is analysed. Evidence of MAM’s advantages over conventional manufacturing approaches, such as the use of functionally graded lattices and patient-specific customised designs, is also presented. Finally, for future studies, a two-way approach is conceptualised with material selection and manufacturing process control in progressions of implant development using MAM. Graphical Abstract

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Additively Manufactured Magnesium-Based Bio-Implants and their Challenges

Cited by 10 publications

References 129 publications

Powder Bed Fusion 3D Printing in Precision Manufacturing for Biomedical Applications: A Comprehensive Review

Powder Bed Fusion 3D Printing in Precision Manufacturing for Biomedical Applications: A Comprehensive Review

Preparation and evaluation of HA–PP coating on AZ31B magnesium alloy for implant applications

Revolutionising orthopaedic implants—a comprehensive review on metal 3D printing with materials, design strategies, manufacturing technologies, and post-process machining advancements

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