Wollastonite ceramics with bimodal porous structures prepared by sol–gel and SPS techniques

Папынов, Е. К.; Shichalin, O.O.; Modin, Evgeny; Mayorov, V. Yu.; Kobylyakov, S. P.; Golub, A. V.; Медков, М. А.; Тананаев, И. Г.; Авраменко, В. А.

doi:10.1039/c6ra04956g

Cited by 15 publications

(5 citation statements)

References 33 publications

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“…(i) The first one, which is generally utilized due its reliability, implies the use of inorganic synthesis by different methods, such as hydrothermal [20,21], co-precipitation [22,23], or sol-gel [24]. However, these approaches are, on one hand, polluting and time-consuming, and, on the other hand, quite expensive [25,26].…”

Section: Bioha Vs Synthetic Hamentioning

confidence: 99%

Current Status on Pulsed Laser Deposition of Coatings from Animal-Origin Calcium Phosphate Sources

Duta

Popescu

2019

Coatings

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The aim of this paper is to present the current status on animal-origin hydroxyapatite (HA) coatings synthesized by Pulsed Laser Deposition (PLD) technique for medical implant applications. PLD as a thin film synthesis method, although limited in terms of surface covered area, still gathers interest among researchers due to its advantages such as stoichiometric transfer, thickness control, film adherence, and relatively simple experimental set-up. While animal-origin HA synthesized by bacteria or extracted from animal bones, eggshells, and clams was tested in the form of thin films or scaffolds as a bioactive agent before, the reported results on PLD coatings from HA materials extracted from natural sources were not gathered and compared until the present study. Since natural apatite contains trace elements and new functional groups, such as CO32− and HPO42− in its complex molecules, physical-chemical results on the transfer of animal-origin HA by PLD are extremely interesting due to the stoichiometric transfer possibilities of this technique. The points of interest of this paper are the origin of HA from various sustainable resources, the extraction methods employed, the supplemental functional groups, and ions present in animal-origin HA targets and coatings as compared to synthetic HA, the coatings’ morphology function of the type of HA, and the structure and crystalline status after deposition (where properties were superior to synthetic HA), and the influence of various dopants on these properties. The most interesting studies published in the last decade in scientific literature were compared and morphological, elemental, structural, and mechanical data were compiled and interpreted. The biological response of different types of animal-origin apatites on a variety of cell types was qualitatively assessed by comparing MTS assay data of various studies, where the testing conditions were possible. Antibacterial and antifungal activity of some doped animal-origin HA coatings was also discussed.

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Section: Bioha Vs Synthetic Hamentioning

confidence: 99%

Current Status on Pulsed Laser Deposition of Coatings from Animal-Origin Calcium Phosphate Sources

Duta

Popescu

2019

Coatings

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“…In order to solve the problems in the synthesis of CaSiO 3 biocomposite ceramics, including those reinforced with HAp, the approaches using an unconventional technique of spark plasma sintering (SPS, widely studied in [18][19][20]), and reactive SPS, as well as combinations of this technique with sol-gel and template syntheses, have been considered and implemented. As a result, micro-and nanostructured CaSiO 3 bioceramics with a macroporous [21,22] and bimodal ordered structure [23], with doped nanosized gold [24], reinforced with HAp [25,26], which have biocompatible properties, relatively high mechanical characteristics, and a defect-free porous framework have been successfully obtained and studied.…”

Section: Introductionmentioning

confidence: 99%

CaSiO3-HAp Metal-Reinforced Biocomposite Ceramics for Bone Tissue Engineering

Папынов

Shichalin

Белов

et al. 2023

JFB

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Reconstructive and regenerative bone surgery is based on the use of high-tech biocompatible implants needed to restore the functions of the musculoskeletal system of patients. Ti6Al4V is one of the most widely used titanium alloys for a variety of applications where low density and excellent corrosion resistance are required, including biomechanical applications (implants and prostheses). Calcium silicate or wollastonite (CaSiO3) and calcium hydroxyapatite (HAp) is a bioceramic material used in biomedicine due to its bioactive properties, which can potentially be used for bone repair. In this regard, the research investigates the possibility of using spark plasma sintering technology to obtain new CaSiO3-HAp biocomposite ceramics reinforced with a Ti6Al4V titanium alloy matrix obtained by additive manufacturing. The phase and elemental compositions, structure, and morphology of the initial CaSiO3-HAp powder and its ceramic metal biocomposite were studied by X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Brunauer–Emmett–Teller analysis methods. The spark plasma sintering technology was shown to be efficient for the consolidation of CaSiO3-HAp powder in volume with a Ti6Al4V reinforcing matrix to obtain a ceramic metal biocomposite of an integral form. Vickers microhardness values were determined for the alloy and bioceramics (~500 and 560 HV, respectively), as well as for their interface area (~640 HV). An assessment of the critical stress intensity factor KIc (crack resistance) was performed. The research result is new and represents a prospect for the creation of high-tech implant products for regenerative bone surgery.

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“…A number of studies have shown the effectiveness of using wollastonite (calcium monosilicate Ca 6 Si 6 O 18 with a theoretical composition, wt.%: CaO—48.3, SiO 2 —51.7 [ 25 , 26 , 27 , 28 , 29 ]) to increase the strength and durability of PCM [ 30 , 31 , 32 , 33 , 34 ]. Wollastonite is used in various high-tech fields including the ceramics and polymer industry [ 35 , 36 , 37 , 38 ]. The use of wollastonite as a filler in PCM is associated with its reinforcing effect on the polymer matrix, chemical inertness, high melting point, and environmental friendliness [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

UHMWPE/CaSiO3 Nanocomposite: Mechanical and Tribological Properties

et al. 2021

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This paper studied the effect of additives of 0.5–20 wt.% synthetic CaSiO3 wollastonite on the thermodynamic, mechanical, and tribological characteristics and structure of polymer composite materials (PCM) based on ultra-high-molecular weight polyethylene (UHMWPE). Using thermogravimetric analysis, X-ray fluorescence, scanning electron microscope, and laser light diffraction methods, it was shown that autoclave synthesis in the multicomponent system CaSO4·2H2O–SiO2·nH2O–KOH–H2O allows one to obtain neeindle-shaped nanosized CaSiO3 particles. It was shown that synthetic wollastonite is an effective filler of UHMWPE, which can significantly increase the deformation-strength and tribological characteristics of PCM. The active participation of wollastonite in tribochemical reactions occurring during friction of PCM by infrared spectroscopy was detected: new peaks related to oxygen-containing functional groups (hydroxyl and carbonyl) appeared. The developed UHMWPE/CaSiO3 materials have high wear resistance and can be used as triboengineering materials.

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Wollastonite ceramics with bimodal porous structures prepared by sol–gel and SPS techniques

Cited by 15 publications

References 33 publications

Current Status on Pulsed Laser Deposition of Coatings from Animal-Origin Calcium Phosphate Sources

Current Status on Pulsed Laser Deposition of Coatings from Animal-Origin Calcium Phosphate Sources

CaSiO3-HAp Metal-Reinforced Biocomposite Ceramics for Bone Tissue Engineering

UHMWPE/CaSiO3 Nanocomposite: Mechanical and Tribological Properties

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