Bio-corrosion behavior and mechanical characteristics of magnesium-titania-hydroxyapatite nanocomposites coated by magnesium-oxide flakes and silicon for use as resorbable bone fixation material

Khalajabadi, Shahrouz Zamani; Abu, Aminudin; Ahmad, Norhayati; Yajid, Muhamad Azizi Mat; Redzuan, Norizah; Nasiri, Rozita; Haider, Waseem; Noshadi, Iman

doi:10.1016/j.jmbbm.2017.09.032

Cited by 18 publications

(9 citation statements)

References 74 publications

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“…SBF was also previously used in studies we cited (Kokubo et al, ). Four weeks of accelerated degradation process was performed to simulate twelve months of duration in body environment (Deliormanlı, ; Khalajabadi et al, ). Additionally, since it is of great importance for living tissues, cytotoxicity tests was also performed for both the treated dentin specimens and the SBF liquids of degraded groups.…”

Section: Discussionmentioning

confidence: 99%

“…SBF was also previously used in studies we cited (Kokubo et al, 2003). Four weeks of accelerated degradation process was performed to simulate twelve months of duration in body environment (Deliormanlı, 2013;Khalajabadi et al, 2018). Additionally, since it In the present study as the highlight, all the evaluated nHAp types were self produced by precipitation method which was preferred because of its simplicity, low cost and easy applicability in medical field.…”

Section: Discussion Smentioning

confidence: 99%

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Dentinal tubule occluding capability of nano‐hydroxyapatite; The in‐vitro evaluation

Bağlar

Erdem

Doğan

et al. 2018

Microscopy Res & Technique

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In this in-vitro study, the effectiveness of experimental pure nano-hydroxyapatite (nHAP) and 1%, 2%, and 3% F¯ doped nano-HAp on dentine tubule occlusion was investigated. And also, the cytotoxicity of materials used in the experiment was evaluated. Nano-HAp types were synthesized by the precipitation method. Forty dentin specimens were randomly divided into five groups of; 1-no treatment (control), 2-specimens treated with 10% pure nano-HAp and 3, 4, 5 specimens treated with 1%, 2%, and 3% F doped 10% nano-HAp, respectively. To evaluate the effectiveness of the materials used; pH, FTIR, and scanning electron microscopy evaluations were performed before and after degredation in simulated body fluid. To determine cytotoxicity of the materials, MTT assay was performed. Statistical evaluations were performed with F and t tests. All of the nano-HAp materials used in this study built up an effective covering layer on the dentin surfaces even with plugs in tubules. It was found that this layer had also a resistance to degradation. None of the evaluated nano-HAp types were have toxicity. Fluoride doping showed a positive effect on physical and chemical stability until a critical value of 1% F . The all evaluated nano-HAp types may be effectively used in dentin hypersensitivity treatment. The formed nano-HAp layers were seem to resistant to hydrolic deletion. The pure and 1% F doped nano-HAp showed the highest biocompatibility thus it was assessed that pure and 1% F doped materials may be used as an active ingredient in dentin hypersensitivity agents.

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Section: Discussionmentioning

confidence: 99%

Section: Discussion Smentioning

confidence: 99%

Dentinal tubule occluding capability of nano‐hydroxyapatite; The in‐vitro evaluation

Bağlar

Erdem

Doğan

et al. 2018

Microscopy Res & Technique

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“…The coatings of Si and MgO have a slower degradation rate so the strength of the nanocomposite is retained much longer. Further, the cell viability of human osteoblast cell lines indicates that the nanocomposite is biocompatible …”

Section: Functionalized Hap Involved In Tissue Engineering Applicationsmentioning

confidence: 99%

“…Further, the cell viability of human osteoblast cell lines indicates that the nanocomposite is biocompatible. 145 Prasad et al utilized biowaste such as fish scales to prepare bioactive HAP functionalized with PLA. The synthesized biocomposite provides better mechanical properties and thermal properties.…”

Section: Bone Tissue Fixationmentioning

confidence: 99%

Functionalized Porous Hydroxyapatite Scaffolds for Tissue Engineering Applications: A Focused Review

Bhat

Uthappa

Altalhi

et al. 2021

ACS Biomater. Sci. Eng.

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Biomaterials have been widely used in tissue engineering applications at an increasing rate in recent years. The increased clinical demand for safe scaffolds, as well as the diversity and availability of biomaterials, has sparked rapid interest in fabricating diverse scaffolds to make significant progress in tissue engineering. Hydroxyapatite (HAP) has drawn substantial attention in recent years owing to its excellent physical, chemical, and biological properties and facile adaptable surface functionalization with other innumerable essential materials. This focused review spotlights a brief introduction on HAP, scope, a historical outline, basic structural features/properties, various synthetic strategies, and their scientific applications concentrating on functionalized HAP in the diverse area of tissue engineering fields such as bone, skin, periodontal, bone tissue fixation, cartilage, blood vessel, liver, tendon/ligament, and corneal are emphasized. Besides clinical translation aspects, the future challenges and prospects of HAP based biomaterials involved in tissue engineering are also discussed. Furthermore, it is expected that researchers may find this review expedient in gaining an overall understanding of the latest advancement of HAP based biomaterials.

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“…The poor corrosion resistance of Mg alloy is mainly attributed to two aspects: (1) the lower electrochemical potential (− 2.37 V vs SCE) and magnesium matrix often act as anode dissolved preferentially in the electrolyte; (2) the protective film is not as dense as the protective film of stainless steel and Al alloy [10][11][12]. Many efforts have been made to modify the anti-corrosion performance of Mg alloy, such as alloying and coating [13][14][15][16][17][18], of which the alloying can improve the corrosion resistance essentially [15], and the Mg-Zn-RE alloys have received the most concern [8,[19][20][21]. Among them, Yuan et al [8] investigated the microstructure, mechanical properties and corrosion of Mg-2.4Zn-0.8Gd (wt%) alloy with and without solution treatment before extrusion in vitro.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Corrosion Behavior of the As-Extruded Mg–4Zn–2Gd–0.5Ca Alloy

Niu

Cao

Deng

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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In order to study the corrosion resistance of extruded magnesium alloys, the Mg-4Zn-2Gd-0.5Ca alloy was extruded at the speed of 0.01-0.1 mm/s with the temperature of 280-360 °C in present study. Hot extrusion results show that the volume fraction of precipitates (V pre ), V DRX (the dynamic recrystallization rate) and the average size of DRXed grain (d DRX ) decrease with the decrease in extrusion speed, and the corrosion rate of the alloy also shows a downward trend. On the contrary, the values of V pre , V DRX and d DRX increase with the increase in extrusion temperature, and the corrosion resistance of Mg-4Zn-2Gd-0.5Ca alloy decreases. When the extrusion speed is 0.01 mm/s and the extrusion temperature is 280 °C, the alloy has the best corrosion resistance. The corrosion of extruded Mg-4Zn-2Gd-0.5Ca alloy occurs preferentially on the magnesium matrix around W and I phases in the DRXed zone. With the further corrosion, the corrosion continues to spread along the phase, and the corrosion area gradually increases. Galvanic corrosion plays a leading role in the corrosion process. Moreover, there are a large number of basal plane textures in the unDRXed region, which is conducive to improving the corrosion resistance of magnesium alloys. In addition, the decrease in grain size also makes the corrosion of magnesium alloy more uniform.

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Bio-corrosion behavior and mechanical characteristics of magnesium-titania-hydroxyapatite nanocomposites coated by magnesium-oxide flakes and silicon for use as resorbable bone fixation material

Cited by 18 publications

References 74 publications

Dentinal tubule occluding capability of nano‐hydroxyapatite; The in‐vitro evaluation

Dentinal tubule occluding capability of nano‐hydroxyapatite; The in‐vitro evaluation

Functionalized Porous Hydroxyapatite Scaffolds for Tissue Engineering Applications: A Focused Review

Microstructure and Corrosion Behavior of the As-Extruded Mg–4Zn–2Gd–0.5Ca Alloy

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