Preparation of calcium phosphates with negative zeta potential using sodium calcium polyphosphate as a precursor

Zhou, Huan; Kong, Shiqin; Bhaduri, Sarit B.; Deng, Linhong

doi:10.1016/j.matlet.2015.04.116

Cited by 22 publications

(5 citation statements)

References 16 publications

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“…For example, the biocompatibility features of a material, such as protein adsorption on the surface in biological medium, are believed to be highly influenced by the water (especially intermediate water) content of the sample. Therefore, it is very important to consider protein molecules in the hydration state of any material with potential application in biological systems [ 36 , 37 ]. Additionally, it was observed that several components existing in biological media have the ability to alter the activity of water and the hydration state [ 38 ].…”

Section: Resultsmentioning

confidence: 99%

Investigating the Intermediate Water Feature of Hydrated Titanium Containing Bioactive Glass

Mabrouk

Beherei

Tanaka

et al. 2021

IJMS

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Intermediate water (IW) in hydrated bioactive glasses remains uninvestigated. We obtained titanium (Ti)-containing bioactive glasses (BGTs) (Ti at 5%, 7.5% and 10% of the glass system) using the sol–gel technique. Their thermal, physicochemical, and morphological properties, before and after Ti-doping, were analysed using DTA, XRD, FTIR, TEM, and SEM accessorised with EDAX, and size distribution and zeta potential surface charges were determined using a NanoZetasizer. The IW in hydrated BGTs was investigated by cooling and heating runs of DSC measurements. Moreover, the mode of death in an osteosarcoma cell line (MG63) was evaluated at different times of exposure to BGT discs. Ti doping had no remarkable effect on the thermal, physicochemical, and morphological properties of BGTs. However, the morphology, size, and charges of BGT nano-powders were slightly changed after inclusion of Ti compared with those of BGT0; for example, the particle size increased with increasing Ti content (from 4–5 to 7–28 nm). The IW content was enhanced in the presence of Ti. The mode of cell death revealed the effect of IW content on the proliferation of cells exposed to BGTs. These findings should help improve the biocompatibility of inorganic biomaterials.

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Section: Resultsmentioning

confidence: 99%

Investigating the Intermediate Water Feature of Hydrated Titanium Containing Bioactive Glass

Mabrouk

Beherei

Tanaka

et al. 2021

IJMS

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“…After that, both Ca-P2 and Ca-P3 show similar weight change behavior with loss of crystal water. In our previous work we have shown amorphous complex of Ca 2 þ and [7]. Therefore, based on XRD, FTIR and TGA, it is speculated the precipitates from Ca-P3 are thermally unstable calcium tripolyphosphate hydrate (Ca 5 (P 3 O 10 ) 2 .nH2O, CTPH).…”

Section: Resultsmentioning

confidence: 96%

“…However, it is noted that inorganic condensed phosphate salts have been applied to generate CaPs in other systems. For example, free calcium ions can react with inorganic condensed phosphate salts to form amorphous porous complex once contacted [7,8]. After that, with thermal or chemical treatment, the complex can be converted into a series of CaPs, such as calcium pyrophosphate, HA, monetite etc.…”

Section: Introductionmentioning

confidence: 99%

“…After that, with thermal or chemical treatment, the complex can be converted into a series of CaPs, such as calcium pyrophosphate, HA, monetite etc. [7,9]. Hence, the purpose of present work is to evaluate whether the usage of inorganic condensed phosphate salts as phosphate source can result in CaPs with unique crystal phase or morphology to regular orthophosphate one.…”

Section: Introductionmentioning

confidence: 99%

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Microwave hydrothermal synthesis of calcium phosphates using inorganic condensed phosphate salts as precursors

et al. 2016

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a b s t r a c tAs a potential phosphate source, inorganic soluble condensed phosphate salts represent a viable alternative to both orthophosphate and organic condensed phosphate salts. The present work demonstrates a simple but versatile microwave hydrothermal method to prepare calcium phosphates using pyrophosphate and tripolyphosphate salts. After 5-min microwave heating, white fine powders are precipitated from calcium and condensed phosphate containing solution. The as-synthesized precipitates are crystallized calcium pyrophosphate hydrate whiskers and calcium tripolyphosphate hydrate porous microspheres. After calcination, both ceramics are converted into calcium pyrophosphate. In vitro study reveals both precipitates and calcined powders are cytocompatible compared to microwave hydrothermally synthesized hydroxyapatite. With all of these attributes, it is expected different inorganic soluble condensed phosphate salts together with microwave can be used to generate a series of calcium phosphates with unique features.

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“…The resulting product contains CPP, NaCaPO 4 and Ca 5 (PO 4 ) 3 Cl after sintering at 900 o C due to the presence of Na 2+ and Clin the process. In our previous work, we have shown that CPP can be easily synthesized as amorphous nano-sized equiaxed particles via thermal treatment of calcium sodium tripolyphosphate [12].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of β-TCP and CPP containing biphasic calcium phosphates by a robust technique

Zhou

Hou

Zhang

et al. 2016

Ceramics International

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Biphasic calcium phosphate (BCP) compositions consisting of β-tricalcium phosphate (β-TCP) and calcium pyrophosphate (CPP) are potential biodegradable ceramics for bone regeneration. The present work demonstrates the formation of such dense ceramics by first preparing the precursors of nano-sized, amorphous, and equiaxed calcium pyrophosphate particles, and then sintering the precursors at 900 °C to transform them into desired BCP. However, if the complex of calcium tripolyphosphate was used, only CPP could be generated. It was also observed that the incorporation of Mg 2+ had several effects on the resulting products including: 1) promoting the generation of meso-porous precipitates; 2) favoring the formation of β-TCP instead of CPP; 3) reducing the grain size and increasing the density of the sintered ceramics, and 4) enhancing the negative electric charge of the BCP surface. Thus, the as-prepared BCP ceramics can serve as potential bone substitute materials in orthopedic applications.

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Preparation of calcium phosphates with negative zeta potential using sodium calcium polyphosphate as a precursor

Cited by 22 publications

References 16 publications

Investigating the Intermediate Water Feature of Hydrated Titanium Containing Bioactive Glass

Investigating the Intermediate Water Feature of Hydrated Titanium Containing Bioactive Glass

Microwave hydrothermal synthesis of calcium phosphates using inorganic condensed phosphate salts as precursors

Synthesis of β-TCP and CPP containing biphasic calcium phosphates by a robust technique

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