3D-printed Mg-1Ca/polycaprolactone composite scaffolds with promoted bone regeneration

Zhao, Xiao Ling; Wang, Siyi; Wang, Feilong; Zhu, Yuan; Gu, Ranli; Yang, Feng; Xu, Yongxiang; Xia, Dandan; Liu, Yunsong

doi:10.1016/j.jma.2022.07.002

Cited by 10 publications

(2 citation statements)

References 55 publications

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“…PCL is a nontoxic polymer, which produces carbon dioxide (CO 2 ) and water (H 2 O)—products harmless to human body degradation [ 24 ]. PCL is applied in many studies [ 25 , 26 , 27 , 28 , 29 ] and clinical practice, and according to the Food and Drug Administration (FDA), it is a bioresorbable polymer [ 30 ]. This polymer is applied in the production of tissue scaffolds [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

et al. 2022

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The method of hybrid coating formation on the surface of a bioresorbable wrought magnesium alloy and magnesium obtained by additive technology was proposed. Plasma electrolytic oxidation (PEO) with subsequent treatment of the material using an organic biocompatible corrosion inhibitor and a bioresorbable polymer material was used to obtain the protective layers. The optimal method of surface treatment was suggested. Using SEM/EDX analysis, XRD, XPS, and confocal Raman microspectroscopy, the composition of the formed surface layers was determined. The corrosion protection performance of the formed coatings was studied by potentiodynamic polarization and electrochemical impedance spectroscopy techniques in 0.9 wt.% NaCl and HBSS. Hydrogen evolution and mass loss tests were performed to study the corrosion rate of samples with different types of protective coatings. Sealing the pores of PEO coating with a polymeric material contributes to a significant reduction in the amount of the inhibitor diffusing into a corrosive medium. The best barrier properties were established for the hybrid coating formed with a one-stage application of benzotriazole and polycaprolactone. Such layers reduce the rate of alloy degradation due to active protection.

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Section: Introductionmentioning

confidence: 99%

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

et al. 2022

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“…In addition, the optimization of scaffolds may bring about new corrosion mechanisms, thus deepening the understanding of the corrosion behavior of Mg alloys. Meanwhile, more biologically appropriate environment should be established [179], and performances in a situation more consistent with actual application environment (such as corrosion fatigue) should be assessed, to better evaluate Mg alloy scaffold degradation in vivo. Moreover, the effects of RE elements on corrosion behavior and biocompatibility of Mg alloys remain unclear.…”

Section: Perspectivesmentioning

confidence: 99%

Additive manufacturing of magnesium and its alloys: process-formability-microstructure-performance relationship and underlying mechanism

Sui,

Guo,

et al. 2023

Int. J. Extrem. Manuf.

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Magnesium and its alloys, as a promising class of materials, is popular in lightweight application and biomedical implants due to their low density and good biocompatibility. Additive manufacturing (AM) of Mg and its alloys is of growing interest in academia and industry. The domain-by-domain localized forming characteristics of AM leads to unique microstructures and performances of AM-processed Mg and its alloys, which are different from those of traditionally manufactured counterparts. However, the intrinsic mechanisms still remain unclear and need to be in-depth explored. Therefore, this work aims to discuss and analyze the possible underlying mechanisms regarding defect appearance and elimination, microstructure formation and evolution, and performance improvement, based on presenting a comprehensive and systematic review on the relationship between process parameters, forming quality, microstructure characteristics and resultant performances. Lastly, some key perspectives requiring focus for further progression are highlighted to promote development of AM-processed Mg and its alloys and accelerate their industrialization.

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Three-dimensional printing of biomaterials for bone tissue engineering: a review

El‐Fiqi

2023

Front. Mater. Sci.

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3D-printed Mg-1Ca/polycaprolactone composite scaffolds with promoted bone regeneration

Cited by 10 publications

References 55 publications

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

Additive manufacturing of magnesium and its alloys: process-formability-microstructure-performance relationship and underlying mechanism

Three-dimensional printing of biomaterials for bone tissue engineering: a review

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