Synthesis and characterization of europium ions doping of hydroxyapatite nanorods by the simple two step method

Kong, Deyan; Xiao, Xinli; Qiu, Xueying; Zhang, Wenbo; Hu, Yang; Zhang, Shen; Yang, Yulin

doi:10.1142/s1793604715500757

Cited by 9 publications

(4 citation statements)

References 18 publications

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“…The plausible difference in the dentine tubules observed may be due to the physicochemical characteristics of the nHAp extracted. This aligns with Kong et al 34 who suggest that the performance of nHAp is influenced by its crystallinity, particle size, and surface morphology. This means that the smaller particle size of EnHAp and the higher pH values favour its remineralization characteristics over the fish scale nHAp.…”

Section: Discussionsupporting

confidence: 92%

Comparative assessment of the remineralization characteristics of nano-hydroxyapatite extracted from fish scales and eggshells

Mkhize,

Onwubu,

Mokhothu

et al. 2023

Journal of Applied Biomaterials & Functional Materials

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Objectives: Dentine hypersensitivity (DH) is a common concern in dentistry that has the potential to restrict daily activities and harm a person’s quality of life. In this study, the remineralization characteristics of nano-hydroxyapatite (nHAp) extracted from waste eggshells and fish scales were comparatively assessed. Materials and methods: The extraction methods used to obtain nHAp from both fish scales and eggshells are also described. The effect of the extraction process and bio-waste source on the physicochemical characteristics of the nHAp such as Ca/P ratio, functional groups, crystallinity and phase change, and surface morphology are presented in the study. The remineralization properties were evaluated using dentine models ( n = 15). A field scanning electron microscope was used to evaluate the effectiveness of the dentine tubules occlusion. The percentage occluded area for all the specimens was evaluated statistically using a one-way analysis of variance (α = 0.05). Results: The results showed that there were variations in the physicochemical characteristics of the nHAp extracted, including the crystallinity, particle size, and surface morphology, and buffering effects against citric acids. The EnHAp extracted from eggshells had higher crystallinity, superior buffering effects, and smaller particle size compared to the nHAp extracted from fish scales, making it a more favourable material for remineralization of teeth. The statistical evidence showed that there were statistically significant differences in the dentine occluding properties measured in the nHAp ( p < 0.001). The highest mean % occluded area was measured with the EnHAp group. Conclusions: The findings of this study provide insights into the use of bio-waste materials for the development of sustainable and effective products for oral health care.

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Section: Discussionsupporting

confidence: 92%

Comparative assessment of the remineralization characteristics of nano-hydroxyapatite extracted from fish scales and eggshells

Mkhize,

Onwubu,

Mokhothu

et al. 2023

Journal of Applied Biomaterials & Functional Materials

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“…Studies and work done for the past 20 years in extracting HAp from mammalian sources, aquatic and marine sources, shell sources, plants and algae, and mineral source are discussed thoroughly. Additionally, this review also investigates the effect of sources and processing methods on the properties such as Ca/P ratio, particle size and morphology, and crystallinity and phase assemblage of natural HAp since the performance of the synthesised HAp is influenced by its crystallinity, size, and morphology [11]. This review thus provides a benchmark for further advanced studies on utilising natural HAp.…”

Section: Introductionmentioning

confidence: 99%

Syntheses of hydroxyapatite from natural sources

Pu'ad

Koshy

Abdullah

et al. 2019

Heliyon

260

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Waste materials from natural sources are important resources for extraction and recovery of valuable compounds. Transformation of these waste materials into valuable materials requires specific techniques and approaches. Hydroxyapatite (HAp) is a biomaterial that can be extracted from natural wastes. HAp has been widely used in biomedical applications owing to its excellent bioactivity, high biocompatibility, and excellent osteoconduction characteristics. Thus, HAp is gaining prominence for applications as orthopaedic implants and dental materials. This review summarizes some of the recent methods for extraction of HAp from natural sources including mammalian, aquatic or marine sources, shell sources, plants and algae, and from mineral sources. The extraction methods used to obtain hydroxyapatite are also described. The effect of extraction process and natural waste source on the critical properties of the HAp such as Ca/P ratio, crystallinity and phase assemblage, particle sizes, and morphology are discussed herein.

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“…These applications require better adsorption capability, mechanical strength, and so on. To complement the mechanical properties of HA composite, few features need to be controlled like particle size, morphology, surface area, particle size distribution, agglomeration, structure, and crystallite size [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…It forms bones and teeth major composition, so it is extensively used in orthopedics in bone repair and implants, as materials substitute in dentistry and as fillers in composites for medical applications [10,11]. It is also used as a prime biomaterial because of its exceptional bioactive and osteoconductive features and biocompatibility with living tissue non-toxicity and bone attachment ability [12][13][14]. These applications require better adsorption capability, mechanical strength, and so on.…”

Section: Introductionmentioning

confidence: 99%

Calcium hydroxyapatite nanoparticles as a reinforcement filler in dental resin nanocomposite

Akhtar

Pervez

Zubair

et al. 2021

J Mater Sci: Mater Med

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The current study focuses on the fabrication of calcium hydroxyapatite (Ca10(PO4)6(OH)2) (HA) in a nanorange having whiskers- and cubic-shaped uniform particle morphology. The synthesized HA particles hold a promising feature as reinforcement fillers in dental acrylic resin composite. They increase the efficacy of reinforcement by length and aspect ratio, uniformity, and monodispersity. Therefore, the acrylic resin was reinforced with the as-synthesized monodispersed HA filler particles (0.2–1 Wt%). The presence of filler particles in the composite had a noticeable effect on the tribological and mechanical properties of the dental material. The morphological effect of HA particles on these properties was also investigated, revealing that cubic-shaped particles showed better results than whiskers. The as-fabricated composite (0.4 Wt%) of the cubic-shaped filler particles showed maximum hardness and improved antiwear/antifriction properties. Particle loading played its part in determining the optimum condition, whereas particle size also influenced the reinforcement efficiency. The current study revealed that particle morphology, particle size, uniformity, etc., of HA fillers, greatly influenced the tribological and mechanical properties of the acrylic resin-based nanocomposite. Improvement in the tribological properties of HA particle-reinforced acrylic resin composites (HA–acrylic resin) followed the trend as AR < CmC < WC < CC.

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Synthesis and characterization of europium ions doping of hydroxyapatite nanorods by the simple two step method

Cited by 9 publications

References 18 publications

Comparative assessment of the remineralization characteristics of nano-hydroxyapatite extracted from fish scales and eggshells

Comparative assessment of the remineralization characteristics of nano-hydroxyapatite extracted from fish scales and eggshells

Syntheses of hydroxyapatite from natural sources

Calcium hydroxyapatite nanoparticles as a reinforcement filler in dental resin nanocomposite

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