Structural and characterisation analysis of zinc-substituted hydroxyapatite with wet chemical precipitation method

Karacan, Ipek; Senturk, Duygu; Oktar, Faik N.; Ficai, Anton; Ficai, Denisa; Trușcă, Roxana; Vasile, Bogdan Ștefan; Gökçe, Hasan; Ozuyar, H. Dilay; Gündüz, Oğuzhan

doi:10.1504/ijnbm.2016.086110

Cited by 2 publications

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“…The molar ratios of Zn/Ca in the chemical formula are similar with those determined via EDS; but the ration of (Zn + Ca)/P of coating is little bit lower than that from chemical formula. The mineralogical name of CaZn 2 (PO 4 ) 2 •2H 2 O is parascholzite [27-29]. It is referred to as Zn-modified calcium phosphate in this study sometimes.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and degradation behaviour of Zn-modified coating on Mg alloy

Wang

Jin

Mei

et al. 2020

Surface Engineering

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This study aimed to control the degradation of Mg-Zn-Ca alloy and improve its biocompatibility using a biodegradable Zn-modified calcium phosphate coating via dualpulse electrodeposition. The formation mode and process of the coating were studied herein. Scanning electron microscopy revealed that the coating particles were compactly and neatly packed, and X-ray diffraction analysis, transmission electron microscopy, Fourier transform infrared spectrophotometer and X-ray photoelectron spectroscopy revealed that the coating comprises CaZn 2 (PO 4 ) 2 •2H 2 O. The introduction of Zn changes the formation mechanism of coating. The degradation behaviour of the coated Mg alloy was investigated via immersion test and electrochemical test in simulated body fluid. The results show that this non-stoichiometric Zn-modified calcium phosphate coating is biodegradable and has a better protective effect. In addition, the Zn-containing coating has hydrophilic property which is beneficial to enhance the cellular response to the implant's surface and increase apatite formation rate.

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Section: Resultsmentioning

confidence: 99%

Synthesis and degradation behaviour of Zn-modified coating on Mg alloy

Wang

Jin

Mei

et al. 2020

Surface Engineering

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Nanosized Zincated Hydroxyapatite as a Promising Heterogeneous Photo-Fenton-Like Catalyst for Methylene Blue Degradation

Doan

et al. 2019

Advances in Materials Science and Engineering

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This study is devoted to synthesis of nanosized zincated hydroxyapatite (Zn-HA) and its utilization as a heterogeneous photo-Fenton-like catalyst for degradation of methylene blue (MB) in aqueous solution. The prepared catalyst was characterized by various techniques such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray, and Fourier transform infrared spectroscopy. The catalytic activity of Zn-HA towards MB and the effects of various experimental factors such as pH, zinc substitution degrees, initial MB concentration, and H2O2 dosage were studied in detail. The results showed that the zinc substitution degree of 0.4 is optimal to get the highest degradation efficiency under conditions of pH = 10, H2O2 dosage of 0.05 M, and MB concentration of 30 mg/L for a contact time of 120 min. The degradation mechanism was proposed and discussed thoroughly. Besides, the ability of long-term use for the synthesized catalyst was also evaluated.

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Structural and characterisation analysis of zinc-substituted hydroxyapatite with wet chemical precipitation method

Cited by 2 publications

References 0 publications

Synthesis and degradation behaviour of Zn-modified coating on Mg alloy

Synthesis and degradation behaviour of Zn-modified coating on Mg alloy

Nanosized Zincated Hydroxyapatite as a Promising Heterogeneous Photo-Fenton-Like Catalyst for Methylene Blue Degradation

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