Using Raman spectroscopy to estimate the demineralization of bone transplants during preparation

Timchenko, E. V.; Тимченко, П. Е.; Taskina, L. A.; Волова, Л. Т.; Miljakova, M. N.; Maksimenko, N. A.

doi:10.1364/jot.82.000153

Cited by 16 publications

(9 citation statements)

References 12 publications

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“…This band belongs to the P-O symmetric extension mode (ν1) of the PO4 group and is the most characteristic carbonized apatite band. The sharpness of this band confirms the excellent HA coating crystallinity, which is also confirmed by other authors [55]. Similarly, the bands associated with the antisymmetric stretching mode (ν3) of PO4 groups show a shift from 1045 to 1033 cm −1 (Table 5).…”

supporting

confidence: 87%

Creation of Bioceramic Coatings on the Surface of Ti–6Al–4V Alloy by Plasma Electrolytic Oxidation Followed by Gas Detonation Spraying

Rakhadilov

Baizhan

2021

Coatings

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In this work, bioceramic coatings were formed on Ti6Al4V titanium alloy using a combined technique of plasma electrolytic oxidation followed by gas detonation spraying of calcium phosphate ceramics, based on hydroxyapatite. Plasma electrolytic oxidation was carried out in electrolytes with various chemical compositions, and the effect of electrolytes on the macro and microstructure, pore size and phase composition of coatings was estimated. Three types of electrolytes based on sodium compounds were used: phosphate, hydroxide, and silicate. Plasma electrolytic oxidation of the Ti–6Al–4V titanium alloy was carried out at a fixed DC voltage (270 V) for 5 min. The sample morphology and phase composition were studied with a scanning electron microscope and an X-ray diffractometer. According to the results, the most homogeneous structure with lower porousness and many crystalline anatase phases was obtained in the coating prepared in the silicate-based electrolyte. A hydroxyapatite layer was obtained on the surface of the oxide layer using detonation spraying. It was determined that the appearance of α-tricalcium phosphate phases is characteristic for detonation spraying of hydroxyapatite, but the hydroxyapatite phase is retained in the coating composition. Raman spectroscopy results indicate that hydroxyapatite is the main phase in the coatings.

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confidence: 87%

Creation of Bioceramic Coatings on the Surface of Ti–6Al–4V Alloy by Plasma Electrolytic Oxidation Followed by Gas Detonation Spraying

Rakhadilov

Baizhan

2021

Coatings

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“…The spectra were taken from each side of the sample at five different points [7,8]. It should be noted that in all samples of bone bioimplants manufactured using the Lioplast technology, there was no high intensity at the wave number of 1738 cm −1 , corresponding to cholesterol and phospholipids (C = O valence).…”

Section: Materials and Methods Of Researchmentioning

confidence: 99%

Raman Spectroscopy for Analysis of Implants from the Dura Mater

Тимченко¹,

Timchenko²,

Волова³

et al. 2018

KEn

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In this paper we present results of the comparative evaluation of the structural properties of the dura mater specimens (DM), manufactured using the "Lioplast" technology, used in the clinic in the field of atrophic processes in multiple gums recessions, using the Raman spectroscopy (RS) method. The introduced coefficients and a two-dimensional analysis that showed that the processing retains the main components and removes DNA / RNA, which increases the quality that provides access to quality materials in the treatment of multiple gum recessions. It was found that the main differences appear at wavenumbers of 835 cm −1 (tyrosine), 855 cm −1(proline), 940 and 1167 cm −1 (GAGs, CSPGs), 1240 cm −1 (amide III), 1560 cm −1 (amide II) and 1447 cm −1 (lipids and proteins). It is shown that Raman spectroscopy can be used to evaluate implants from the dura mater.

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“…The spectral characteristics of the samples were studied by means of experimental stand that includes a high-resolution digital spectrometer Shamrock sr-303i with a built-in cooling chamber DV420A-OE, fiber optic probe for Raman spectroscopy RPB785, combined with the laser module LuxxMaster LML-785.0 RB-04 (with adjustable power up to 500 mW, wavelength 785 nm) [14].…”

Section: Materials and Methods Studiesmentioning

confidence: 99%

Spectral Analysis of Structural Changes of the Heart Valves at Different Stages of Their Decellularization

Timchenko¹,

Тимченко²,

Волова³

et al. 2018

KEn

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Using Raman spectroscopy to estimate the demineralization of bone transplants during preparation

Cited by 16 publications

References 12 publications

Creation of Bioceramic Coatings on the Surface of Ti–6Al–4V Alloy by Plasma Electrolytic Oxidation Followed by Gas Detonation Spraying

Creation of Bioceramic Coatings on the Surface of Ti–6Al–4V Alloy by Plasma Electrolytic Oxidation Followed by Gas Detonation Spraying

Raman Spectroscopy for Analysis of Implants from the Dura Mater

Spectral Analysis of Structural Changes of the Heart Valves at Different Stages of Their Decellularization

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