Thermal stability of nano hydroxyapatite synthesized from sea shells through wet chemical synthesis

Santhosh, S.; Prabu, S. Balasivanandha

doi:10.1016/j.matlet.2013.01.081

Cited by 62 publications

(35 citation statements)

References 9 publications

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“…Figure 2A presents the XRD pattern of the nHA/PEEK composite. The diffraction peaks of the composite at around 2θ =25.5°, 32°, 33°, 40°, and 49.5° ascribe to the characteristic peaks of HA, 22 while the two peaks at around 2θ =21° and 22.5° are the characteristic peaks of PEEK. 23 The results indicate that the composite contained both the nHA and PEEK.…”

Section: Tem Of Nhamentioning

confidence: 98%

Preparation, characterization, and in vitro osteoblast functions of a nano-hydroxyapatite/polyetheretherketone biocomposite as orthopedic implant material

Ma¹,

Tang²,

Tan³

et al. 2014

IJN

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A bioactive composite was prepared by incorporating 40 wt% nano-hydroxyapatite (nHA) into polyetheretherketone (PEEK) through a process of compounding, injection, and molding. The mechanical and surface properties of the nHA/PEEK composite were characterized, and the in vitro osteoblast functions in the composite were investigated. The mechanical properties (elastic modulus and compressive strength) of the nHA/PEEK composite increased significantly, while the tensile strength decreased slightly as compared with PEEK. Further, the addition of nHA into PEEK increased the surface roughness and hydrophilicity of the nHA/PEEK composite. In cell tests, compared with PEEK and ultra-high-molecular-weight polyethylene, it was found that the nHA/PEEK composite could promote the functions of MC3T3-E1 cells, including cell attachment, spreading, proliferation, alkaline phosphatase activity, calcium nodule formation, and expression of osteogenic differentiation-related genes. Incorporation of nHA into PEEK greatly improved the bioperformance of PEEK. The nHA/PEEK composite might be a promising orthopedic implant material.

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Section: Tem Of Nhamentioning

confidence: 98%

Preparation, characterization, and in vitro osteoblast functions of a nano-hydroxyapatite/polyetheretherketone biocomposite as orthopedic implant material

Ma¹,

Tang²,

Tan³

et al. 2014

IJN

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“…Hydroxyapatite (HA) can be synthesized by a variety of methods such as hydrothermal [16,17], sol-gel [17][18][19][20], wet chemical [3,21], biomimetic deposition [22,23], solid-state reaction [24], and microbial method [25]. It is important to carefully control the operating condition during the synthesis, including pH, reaction time, temperature, concentration of the reactants, as well as the proper selection of the precursor materials [26].…”

Section: Synthesismentioning

confidence: 99%

Physical and biological characteristics of nanohydroxyapatite and bioactive glasses used for bone tissue engineering

Yousefi

Oudadesse

Akbarzadeh

et al. 2014

Nanotechnology Reviews

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Critical-sized bone defects have, in many cases, posed challenges to the current gold standard treatments. Bioactive glasses are reported to be able to stimulate more bone regeneration than other bioactive ceramics; however, the difficulty in producing porous scaffolds made of bioactive glasses has limited their extensive use in bone regeneration. On the other hand, calcium phosphate ceramics such as synthetic hydroxyapatite and tricalcium phosphate are widely used in the clinic, but they stimulate less bone regeneration. This paper gives an overview of the recent developments in the field of bioactive nanoparticles, with a focus on nanohydroxyapatite and bioactive glasses for bone repair and regeneration. First, a brief overview of the chemical structure and common methods used to produce synthetic nanohydroxyapatite and bioactive glasses has been presented. The main body of the paper covers the physical and biological properties of these biomaterials, as well as their composites with biodegradable polymers used in bone regeneration. A summary of existing challenges and some recommendations for future directions have been brought in the concluding section of this paper.

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“…The observation of the asymmetric P-O stretching of the PO 4 3-bands at 1050 cm -1 as a distinguishable peak, together with sharp peaks at 571cm -1 and 601 cm -1 correspond to the triply bending vibrations of PO 4 3-in hydroxyapatite 17,[24][25] . The characteristic bands of CO 3 2-identified at 926cm -1 correspond to the C-O bending, and the bands at 1419, 1481cm -1 correspond to ν 3 mode of CO 3 2-17,24-25 . .…”

Section: Experimental Methodsmentioning

confidence: 94%

“…The characteristic bands for PO 4 3-appear at 546 cm -1 , 602 cm -1 , 1050 cm -1 , and 1090 cm -117, [24][25] . The characteristic bands of CO 3 2-identified at 962cm -1 correspond to the C-O bending [24][25] . Comparing the FTIR spectra of BHAP without SiO 2 ( Fig.4a) and with SiO 2 (Fig.4b), the most notable effect of SiO 2 addition on FTIR spectra of BHAp is the change in the hydroxyl stretching bands at 3572 cm -1 and 631 cm -1 .…”

Section: Experimental Methodsmentioning

confidence: 99%

Synthesis and characterisation of composite based biohydroxyapatite bovine bone mandible waste (BHAp) doped with 10 wt % amorphous SiO2 from rice husk by solid state reaction

Asmi

Sulaiman

Oktavia

et al. 2016

AIP Conference Proceedings

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Microstructure and oxidation behavior of high strength steel AISI 410 implanted with nitrogen ion AIP Conference Proceedings 1725, 020010 (2016) Abstract. Effect of 10 wt% amorphous SiO 2 from rice husk addition on the microstructures of biohydroxyapatite (BHAp) obtained from bovine bone was synthesized by solid state reaction. In this study, biohydroxyapatite powder was obtained from bovine bone mandible waste heat treated at 800 o C for 5 h and amorphous SiO 2 powder was extracted from citric acid leaching of rice husk followed by combustion at 700 o C for 5 h. The composite powder then mixed and sintered at 1200 o C for 3 h. X-ray diffraction (XRD), Fourier transformed infrared (FTIR) spectroscopy and Scanning electron microscopy (SEM) techniques are utilized to characterize the phase relations, functional group present and morphology of the sample. The study has revealed that the processing procedures played an important role in microstructural development of BHAp-10 wt% SiO 2 composite. The XRD study of the raw material revealed that the primary phase material in the heat treated of bovine bone mandible waste is hydroxyapatite and in the combustion of rice husk is amorphous SiO 2 . However, in the composite the hydroxyapatite, -tricalcium phosphate, and calcium phosphate silicate were observed. The FTIR result show that the hydroxyl stretching band in the composite decrease compared with those of hydroxyapatite spectra and the evolution of morphology was occurred in the composite.

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Thermal stability of nano hydroxyapatite synthesized from sea shells through wet chemical synthesis

Cited by 62 publications

References 9 publications

Preparation, characterization, and in vitro osteoblast functions of a nano-hydroxyapatite/polyetheretherketone biocomposite as orthopedic implant material

Preparation, characterization, and in vitro osteoblast functions of a nano-hydroxyapatite/polyetheretherketone biocomposite as orthopedic implant material

Physical and biological characteristics of nanohydroxyapatite and bioactive glasses used for bone tissue engineering

Synthesis and characterisation of composite based biohydroxyapatite bovine bone mandible waste (BHAp) doped with 10 wt % amorphous SiO2 from rice husk by solid state reaction

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