Alpha-tricalcium phosphate synthesized by two different routes: Structural and spectroscopic characterization

Kolmas, Joanna; Kaflak, Agnieszka; Zima, Aneta; Ślósarczyk, A.

doi:10.1016/j.ceramint.2014.12.159

Cited by 42 publications

(23 citation statements)

References 29 publications

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“…Whereas the amorphous halo in XRD patterns refers to the presence of polymers (CTS, MC, SA). Similar results were obtained in our previous studies on hybrid HA/CTS granules (Zima, ) and α‐TCP‐based bone cements (Czechowska et al, ; Kolmas, Kaflak, Zima, & Ślósarczyk, ). Such a combination seemed to be of both the cognitive values and advantageous applicability.…”

Section: Discussionsupporting

confidence: 91%

In vivo behavior of biomicroconcretes based on α‐tricalcium phosphate and hybrid hydroxyapatite/chitosan granules and sodium alginate

Zima

Czechowska

Szponder

et al. 2020

J Biomedical Materials Res

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The current studies provide insights into how predictions based on results of physicochemical and in vitro tests are consistent with the results of in vivo studies. The new biomicroconcrete type materials were obtained by mixing the solid phase, composed of hybrid hydroxyapatite/chitosan granules and highly reactive α‐tricalcium phosphate powder, used as the setting agent. This approach guaranteed a good adhesion of the continuous cement phase to the surface of granules. It has been demonstrated that developed biomicroconcretes are surgically handy, possessed favorable physicochemical and biological properties and can be considered as effective bone implant material. The hierarchical porosity and compressive strength (2–6 MPa) similar to cancellous bone made them suitable for low‐load bearing applications. Despite the fact that final setting times of biomicroconcretes were longer than recommended in the literature (i.e., exceeded 15 min), their short cohesion time allows for a successful implantation in a rabbit femoral defect model. Histological analysis and Raman studies revealed newly formed bone tissues around the sides of implanted materials. Furthermore, the process of neovascularization and reconstruction of the bone tissue, as well as a reverse scaffolding process, was visible. No signs of inflammation or adverse tissue reactions were observed during the experiment.

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Section: Discussionsupporting

confidence: 91%

In vivo behavior of biomicroconcretes based on α‐tricalcium phosphate and hybrid hydroxyapatite/chitosan granules and sodium alginate

Zima

Czechowska

Szponder

et al. 2020

J Biomedical Materials Res

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“…and α-TCP, respectively22 .These results demonstrate the potential of the composites as alternatives to traditional α-TCP bone cement and pave the way for incorporation of biologically active substances and in vitro and in vivo testing. The physiochemical characterization data showed no difference in the type of mineral formed in GGa30, GGa40 and GGa50.…”

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confidence: 55%

Novel self‐gelling injectable hydrogel/alpha‐tricalcium phosphate composites for bone regeneration: Physiochemical and microcomputer tomographical characterization

Douglas

Schietse

Zima

et al. 2017

J Biomedical Materials Res

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Mineralized hydrogels are increasingly gaining attention as biomaterials for bone regeneration. The most common mineralization strategy has been addition of preformed inorganic particles during hydrogel formation. This maintains injectability. One common form of bone cement is formed by mixing particles of the highly reactive calcium phosphate alpha-tricalcium phosphate (α-TCP) with water to form hydroxyapatite (HA). The calcium ions released during this reaction can be exploited to crosslink anionic, calcium-binding polymers such as the polysaccharide gellan gum (GG) to induce hydrogel formation. In this study, three different amounts of α-TCP particles were added to GG polymer solution to generate novel, injectable hydrogel-inorganic composites. Distribution of the inorganic phase in the hydrogel was studied by high resolution microcomputer tomography (µCT). Gelation occurred within 30 min. α-TCP converted to HA. µCT revealed inhomogeneous distribution of the inorganic phase in the composites. These results demonstrate the potential of the composites as alternatives to traditional α-TCP bone cement and pave the way for incorporation of biologically active substances and in vitro and in vivo testing. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 822-828, 2018.

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“…Пики, характерные для связи Ti-O-Ti, отсутствовали. Во всех порошковых сме-сях фосфор находился в составе функциональ-ной группы PO 4 3-(пары пиков при ν = 570÷603 и 1048÷1092 см -1 [27,28] …”

Section: результаты и их обсуждениеunclassified

Peculiarities of formation of sintered electrodes of the Ti–Ti3P–CaO composition and their application in technology of pulsed electric-discharge machining of titanium

Логинов¹,

Левашов²,

Потанин³

et al. 2015

Izv. VUZ. Poroshk. Met.

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Исследовано влияние механической обработки на структуру и фазовый состав порошковых смесей Ti-10%Ca 3 (PO 4 ) 2 . По тех-нологии прессования и вакуумного спекания получены керамические электродные материалы Ti-Ti 3 P-CaO с высокой одно-родностью компонентов и остаточной пористостью 5-7 %. Изучена эрозионная способность спеченного металлокерами-ческого электрода Ti-Ti 3 P-CaO при импульсной электроискровой обработке титановых подложек и проведено сравнение с электродами TiC 0,5 -Ti 3 PO x -CaO, изготовленными методом самораспространяющегося высокотемпературного синтеза. По-крытия, полученные при использовании электродов Ti-Ti 3 P-CaO и TiC 0,5 -Ti 3 PO x -CaO, характеризовались высокой сплошнос-тью, толщиной до 20 мкм, микротвердостью до 3,6 ГПа, шероховатостью 3,3-4,6 мкм, наличием и равномерным распределе-нием биоактивных элементов кальция и фосфора. 2015. No. 4. С. 45-58. DOI: dx.doi.org/10.17073/1997-308X-2015 Peculiarities of formation of sintered electrodes of the Ti-Ti 3 P-CaO composition and their application in technology of pulsed electric-discharge machining of titaniumThe influence of mechanical treatment on the structure and phase composition of Ti-10%Ca 3 (PO 4 ) 2 powder mixtures is investigated. The Ti-Ti 3 P-CaO ceramic electrode materials with a high uniformity of components and residual porosity of 5-7% are fabricated according to the pressing and vacuum sintering technology. The erosion ability of the Ti-Ti 3 P-CaO metal-ceramic electrode under the pulsed electric-discharge machining of titanium substrates is investigated and compared with the TiC 0,5 -Ti 3 PO x -CaO electrodes fabricated by self-propagating high-temperature synthesis. Coatings fabricated when using Ti-Ti 3 P-CaO and TiC 0,5 -Ti 3 PO x -CaO electrodes are characterized by high continuity, thickness up to 20 μm, microhardness up to 3,6 GPa, roughness to 3,3-4,6 μm, and the presence and uniform distribution of calcium and phosphorus bioactive elements.Keywords: pulsed electric-discharge machining, planetary ball mill, sintering, bioactive coating, ceramics.

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Alpha-tricalcium phosphate synthesized by two different routes: Structural and spectroscopic characterization

Cited by 42 publications

References 29 publications

In vivo behavior of biomicroconcretes based on α‐tricalcium phosphate and hybrid hydroxyapatite/chitosan granules and sodium alginate

In vivo behavior of biomicroconcretes based on α‐tricalcium phosphate and hybrid hydroxyapatite/chitosan granules and sodium alginate

Novel self‐gelling injectable hydrogel/alpha‐tricalcium phosphate composites for bone regeneration: Physiochemical and microcomputer tomographical characterization

Peculiarities of formation of sintered electrodes of the Ti–Ti3P–CaO composition and their application in technology of pulsed electric-discharge machining of titanium

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