Degradable behavior and bioactivity of micro-arc oxidized AZ91D Mg alloy with calcium phosphate/chitosan composite coating in m-SBF

Zhang, Jie; Dai, Changsong; Wei, Jie; Wen, Zhixun; Zhang, Shujuan; Chen, Chuang

doi:10.1016/j.colsurfb.2013.05.040

Cited by 64 publications

(40 citation statements)

References 47 publications

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“…It can be known from Fig. 2C that the peak strength of HA became strong after the addition of CNTs into the CaP/chitosan coating [17], which was in agreement with Fig. 2A (XRD) and B (FTIR).…”

Section: Resultssupporting

confidence: 87%

“…Specifically, for the CaP/chitosan coating with CNTs ( Fig. 2A(a-f)), their peaks strengths obviously increased in comparison with the CaP/chitosan coating without CNTs in a previous study [17], indicating the addition of CNTs was beneficial for good crystal of phosphate. It can be seen from Fig.…”

Section: Resultsmentioning

confidence: 88%

“…2B(e-f)). Moreover, peak intensities of PO 4 3− and CO 3 2− in the CaP/chitosan coating with the addition amounts of CNTs in range from 0.05 g to 0.15 g slightly became strong in comparison with that of the CaP/chitosan coating without CNTs in a previous study [17], suggesting that the suitable addition amount of CNTs in the CaP/chitosan coating was beneficial for the growth of HA and HCA. Fig.…”

Section: Resultsmentioning

confidence: 90%

“…4A, one reason might be that the CNTs were completely covered by the deposited HA and chitosan in the process of EPD and the other reason might be that small volume fraction of CNTs was difficult to be detected within the sensitivity limit of XRD [25]. from the corrosion in m-SBF as shown in a previous study [15][16][17]. The m-SBF could penetrate through the micropores in the composite coating and MAO film to react with Mg alloy, which resulted in the corrosion of Mg alloy in m-SBF.…”

Section: Bioactivity Of the Cap/chitosan/cnts Coatingmentioning

confidence: 92%

“…Starting from the structure of natural bone tissue, in this paper, we took advantage of the unique nanotube structure of CNTs and excellent biocompatibility of HA and designed a novel Mg based CaP/chitosan/CNTs as bone substitution material. On the basis of the previous studies [15][16][17], the bonding, bioactivity, loading gentamicin and cell toxicity of Mg based CaP/chitosan/ CNTs were investigated in this study.…”

Section: Introductionmentioning

confidence: 99%

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Effect of the addition CNTs on performance of CaP/chitosan/coating deposited on magnesium alloy by electrophoretic deposition

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Materials Science and Engineering: C

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 90%

Section: Bioactivity Of the Cap/chitosan/cnts Coatingmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Effect of the addition CNTs on performance of CaP/chitosan/coating deposited on magnesium alloy by electrophoretic deposition

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Corrosion Behaviors of Long‐Period Stacking Ordered Structure in Mg Alloys Used in Biomaterials: A Review

et al. 2018

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The long‐period stacking ordered (LPSO) phases have distinctive microstructures and significant effect on the promotion of mechanical properties of Mg alloys, which have received considerable attention not only as industrial materials but also as biodegradable implant materials recently. By now, numerous researchers devote to study the effects of the microstructures of LPSO phases on the mechanical properties of Mg alloys. But a few of them reveal the relationship between LPSO phases and corrosion behaviors of Mg alloys. Therefore, the knowledge of characteristics of LPSO phases and their effects on biocorrosion behaviors is essential. In this review, the current understanding about the structure, growth, transformation, and deformation of LPSO phases in Mg alloys are summarized. The recent developments of biocorrosion behaviors of Mg alloys are reviewed. The information on the immersion and corrosion mechanisms of Mg alloys are provided. The role of LPSO structures on corrosion behaviors of Mg alloys is intensively analyzed. Based on the current understandings, some problems are pointed out and suggestions for further research of Mg alloys with LPSO structures using as biomedical materials are provided.

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Chitosan in Surface Modification for Bone Tissue Engineering Applications

Abinaya

Prasith

Ashwin

et al. 2019

Biotechnology Journal

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Traditional methods of bone defect repair include autografts, allografts, surgical reconstruction, and metal implants that have several disadvantages such as donor site morbidity, rejection, risk of disease transmission, and repetitive surgery. Biomaterial‐based bone reconstructions can, therefore, be an efficient alternative due to the inherent properties of the materials. Chitosan (CS), the deacetylated form of chitin, is a biopolymer having a wide array of applicability in regenerative tissue applications owing to its biocompatible, in vitro degradative and bioresorbable nature. Extensive studies are being carried out using CS to augment the properties of the already existing methods and to also improve the applicability of CS‐based biocomposites in bone tissue repair. In this review, the suitability of CS as a surface modifier has been discussed in detail for the already existing implants, surface modifications of CS‐based natural biocomposites for bone tissue regeneration, and the wide range of techniques that can introduce these modifications. CS, being a natural polymer, possesses advantageous properties including surface modifier that makes it a suitable candidate for bone regeneration, and further research to investigate its osteogenic potential in vivo along with the molecular and signaling mechanisms involved in bone regeneration can aid in expanding its applicability in clinical trials.

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Degradable behavior and bioactivity of micro-arc oxidized AZ91D Mg alloy with calcium phosphate/chitosan composite coating in m-SBF

Cited by 64 publications

References 47 publications

Effect of the addition CNTs on performance of CaP/chitosan/coating deposited on magnesium alloy by electrophoretic deposition

Effect of the addition CNTs on performance of CaP/chitosan/coating deposited on magnesium alloy by electrophoretic deposition

Corrosion Behaviors of Long‐Period Stacking Ordered Structure in Mg Alloys Used in Biomaterials: A Review

Chitosan in Surface Modification for Bone Tissue Engineering Applications

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