Morphological and mechanical characterization of topologically ordered open cell porous iron foam fabricated using 3D printing and pressureless microwave sintering

Sharma, Pawan; Pandey, Pulak M.

doi:10.1016/j.matdes.2018.09.029

Cited by 59 publications

(59 citation statements)

References 49 publications

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“…Biodegradable materials can avoid the negative effects associated with long-term implants, for instance, stress shielding, inflammation, thrombus formation, migration of the implant, and re-intervention to remove devices with a transient function [4][5][6][7][8][9]. Degradable biomaterials represent the next generation of highly bioactive materials, which are envisaged to facilitate the restoration of diseased tissue and thereafter naturally decompose in the human body environment without leaving toxic degradation products, to be replaced by healing tissue [2,6,[10][11][12][13]. In orthopedic applications, the degradation rate of an implant should be consistent with the rate of bone tissue After that, the phosphated iron powder was dried at 60 • C for 2 h and calcined at 400 • C in air for 3 h. The Fe/P foams were then prepared by the same procedure as Fe foams but to avoid liquid-phase sintering, the Fe/P samples were heat-treated at 1050 • C. The final Fe/P foams contained~0.5 wt.% of phosphorus.…”

Section: Introductionmentioning

confidence: 99%

Degradation Performance of Open-Cell Biomaterials from Phosphated Carbonyl Iron Powder with PEG Coating

et al. 2020

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Advances in biomedicine and development of modern technologies in the last century have fostered the improvement in human longevity and well-being. This progress simultaneously initiated the need for novel biomaterials. Recently, degradable metallic biomaterials have attracted serious attention in scientific and clinical research owing to their utilization in some specific applications. This work investigates the effect of the polyethylene glycol (PEG) coating of open-cell iron and phosphorus/iron foams on their microstructure and corrosion properties. The addition of phosphorus causes a slight increase in pore size and the deposition of a polymer coating results in a smoothened surface and a moderate decrease in pore diameter. The PEG coating leads to an increase in corrosion rates in both foams and potentially a more desirable product.

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Section: Introductionmentioning

confidence: 99%

Degradation Performance of Open-Cell Biomaterials from Phosphated Carbonyl Iron Powder with PEG Coating

et al. 2020

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“…7 Due to this large difference in stiffness, the use of iron in implants can cause problems due to stress shielding effects. 8…”

Section: Introductionmentioning

confidence: 99%

Effect of the topology on the mechanical properties of porous iron immersed in body fluids

Salama

Rechena

Reis

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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A new generation of biodegradable metal alloys with a porous structure has been receiving growing attention as temporary bone scaffolds for tissue regeneration. The mechanical response of the scaffolds depends upon several factors including the properties of the metal itself, the amount of porosity, the geometrical topology and the immersion conditions. The purpose of this study is to evaluate the degradation behaviour and the mechanical properties of porous iron samples with porosities in the range of 20–30%. Besides the amount of porosity, the effect of topology was evaluated with the study of different arrangement of pores, as well as pore shapes. The specimens were subjected to chemical degradation by immersion of the iron samples in body fluid simulation conditions. The mechanical properties of the samples prior and after the degradation process were assessed by three-point bending tests. Numerical simulations were carried out and the results were compared with the experimental results. The degradation operated by body fluids tends to reduce the mechanical properties. In comparison with the compact structures, porous structures exhibit lower mechanical strength, but still with reasonable values for the use in temporary implants, which also allows reducing the stress shielding effect, keeping the biodegradable advantages. The present work also confirms that the topological design has a strong influence on the mechanical properties of the specimens and on the biodegradation behaviour.

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“…[2] Moreover, metal-based BMs also show good biocompatibility with the bone in situ. [3] In the last decade, metallic BMs in particular iron (Fe) [4][5][6] and magnesium [7][8][9][10] and their alloys have been immensely emphasized by the researchers. Apart from, Fe-based BMs showed promising mechanical properties [5,11] ; however, a slow degradation rate might cause the problem in vivo similar to the permanent metallic implants.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of in vitro corrosion behavior of zinc–hydroxyapatite and zinc–hydroxyapatite–iron as biodegradable composites

Pathak

Pandey

2020

J Biomed Mater Res

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Zinc (Zn) based biomaterials have been emerged as one of the capable biodegradable materials for biomedical applications because of the ideal degradation properties. In the present work, corrosion kinetics of Zn–hydroxyapatite (HA), and Zn–HA–iron (Fe) materials developed using microwave sintering process were investigated. The effect of the inclusion of HA and Fe in Zn on corrosion properties have been evaluated in the simulated body fluid solution. Further, the wettability test of the developed composites was performed to confirm the hydrophilic nature of the surface of all samples. Zn‐3HA was found to have better hydrophilicity as compared to other samples. Increased corrosion rate and pH of Zn‐5HA‐2Fe samples were attributed to the addition of HA and Fe in the Zn matrix. The corrosion rate and weight loss rate from electrochemical and immersion testing of all samples were found in the order from highest to lowest: Zn‐5HA‐2Fe > Zn‐3HA > Zn‐3HA‐2Fe > Zn. The highest cell viability nearly 100% was obtained for Zn‐3HA samples, whereas other samples also showed sufficient biocompatibility to be utilized for biomedical applications.

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Morphological and mechanical characterization of topologically ordered open cell porous iron foam fabricated using 3D printing and pressureless microwave sintering

Cited by 59 publications

References 49 publications

Degradation Performance of Open-Cell Biomaterials from Phosphated Carbonyl Iron Powder with PEG Coating

Degradation Performance of Open-Cell Biomaterials from Phosphated Carbonyl Iron Powder with PEG Coating

Effect of the topology on the mechanical properties of porous iron immersed in body fluids

Evaluation of in vitro corrosion behavior of zinc–hydroxyapatite and zinc–hydroxyapatite–iron as biodegradable composites

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