Influence of selenium dioxide (SeO2) on properties of bioglass in SiO2-Na2O-CaO-P2O5 system

Karan, Ram; Manna, Priyabrata; Maiti, Paramita; Das, Kaberi

doi:10.1007/s41779-020-00459-z

Cited by 10 publications

(5 citation statements)

References 32 publications

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“…The microstructural analysis of a scaffold is crucial to understand its response to processing steps, such as heat treatment. 28 The microstructural analysis of the HB 0 S sample provided visual evidence of the formation of single-phase b-TCP, which was also conrmed by the XRD analysis (Fig. 1b).…”

Section: Physicochemical Characteristicsmentioning

confidence: 59%

In vitro evaluation of novel low-pressure spark plasma sintered HA–BG composite scaffolds for bone tissue engineering

et al. 2020

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Section: Physicochemical Characteristicsmentioning

confidence: 59%

In vitro evaluation of novel low-pressure spark plasma sintered HA–BG composite scaffolds for bone tissue engineering

et al. 2020

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“…The spectra of the as-prepared samples show the absorption bands of the silicate group in the region 1020-1038 cm −1 , and at 446 cm −1 25 . In addition, for SNCP and SNCMP glasses, bands at 570 and within 788-794 cm -1 are observed and ascribed respectively to the bending vibration mode of P-O in amorphous calcium phosphate and to the symmetric stretching of Si-O-Si bond 25,26 ; however, none of these bands is observed for the as-prepared SCMP glass. A broad OH absorption band at 3330 cm −1 and a weak adsorbed water band ~ 1635-1660 cm −1 appeared in the spectra of as-prepared SCMP and SNCP samples.…”

Section: Resultsmentioning

confidence: 88%

“…Interestingly, the vibration band at 570 cm -1 (bending mode of P-O) shifted toward 560 cm -1 which indicate the formation of a carbonated hydroxyapatite layer 7,25 . The weak band at 868 cm -1 , which is recorded only for SCMP glass after 7 d of immersion, is ascribed to C-O bending 25 . As the time of soaking increases, the bands become more and more fine and intense, indicating that the amorphous calcium phosphate is converted continuously into crystalline carbonated hydroxyapatite.…”

Section: Resultsmentioning

confidence: 99%

“…A broad OH absorption band at 3330 cm −1 and a weak adsorbed water band ~ 1635-1660 cm −1 appeared in the spectra of as-prepared SCMP and SNCP samples. The band within 1421-1454 cm −1 is ascribed to the absorption of carbonate group (ν3) 20,25 . In contrast, neither water nor carbonate bands were detected for as-prepared SNCMP sample and after 1h in SBF.…”

Section: Resultsmentioning

confidence: 99%

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Physicochemical and in vitro bioactivity studies of bioactive glasses in the SiO2-CaO-MgO-P2O5, SiO2-Na2O-CaO-P2O5 and SiO2-Na2O-CaO-MgO-P2O5 systems

et al. 2020

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Glasses in the quaternary and quinary system SiO2-CaO-MgO-P2O5 (SCMP), SiO2-Na2O-CaO-P2O5 (SNCP) and SiO2-Na2O-CaO-MgO-P2O5 (SNCMP), have been prepared by using the sol-gel technique. Investigations of structural and bioactive properties of these glasses have been undertaken by using X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS). The in vitro bioactivity was assessed by determining the changes in surface morphology and composition after soaking in simulated body fluid (SBF) for up to 30 days at 37°C. X-ray diffraction patterns indicated the formation of hydroxycarbonated apatite layer (HCA) after only one hour for SNCMP glass and after four days for SCMP and SNCP glasses. Furthermore, observed bands of FTIR spectra confirmed the growth of HCA layer during in vitro test.Moreover, the dissolution rate has been investigated using energy-dispersive X-ray spectroscopy. The observed EDS patterns confirmed the growth of HCA layer on all samples surfaces during in vitro analysis. On the one hand, we report the existence of Na2Ca2Si3O9 (that couple good mechanical strength with satisfactory biodegradability) as a single crystalline phase in the SNCP glass when calcined at 600°C. On the other hand, we have noticed that the coexistence of magnesium and sodium both enhanced the dissolution rate and hindered the crystallization in the SNCMP glass at 600°C.

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“…Diseased conditions such as tumors, rapid bone ageing, osteoporosis, and elevated blood calcification are caused by irregulation in ROS activity [6,28]. Although the presence of selenium is very minimal in the human body, it has the benefits of normalising body functions through improved immunity, anti-inflammation, and antioxidant reactivity [29]. The high selenium concentration also prevents bone remodeling/regeneration and disrupts the internuclear site of bacterial cells by inducing ROS activity [30].…”

Section: Introductionmentioning

confidence: 99%

Calcium silicate biocomposites: effects of selenium oxide on the physico-mechanical features and their in-vitro biological assessments

et al. 2023

Biomed. Mater.

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Bone tissue regenerative material serves as a prospective recovery candidate with self-adaptable biological properties of bio-activation, degradability, compatibility, and antimicrobial efficacy instead of metallic implants. Such materials are highly expensive due to chemical reagents and complex synthesis procedures, making them unaffordable for patients with financial constraints. This research produced an efficient bone tissue regenerative material using inexpensive naturally occurring source materials, including silica sand and limestone. The extracted SiO2 and CaO particles (75:25 wt%) were subjected to hydrothermal synthesis (water treatment instead of chemical solvents) to produce the CaSiO3 biomaterial (code: S). Selenium oxide was doped with calcium silicate at 3, 5, and 10 wt.% to enhance its properties, yielding biocomposite materials (i.e., S3, S5, and S10). The physico-mechanical properties of these materials were investigated with XRD, FTIR, FESEM-EDS, and micro-UTM. The results revealed that the synthesized biocomposites have a crystalline wollastonite phase with a porously fused rough surface. From structural parametric calculations, we found that the biocomposites have reduced particle size and enhanced surface area due to the influence of selenium oxide. The biocomposite S10, having high SeO2 content, attained the maximum compressive strength of 75.2 MPa. In-vitro studies of bioactivity, biodegradability, biocompatibility, and antibacterial activity were performed. At 7 and 14 days of bioactivity, the synthesized biocomposites are capable of dissolving their ions into SBF solution to precipitate HAp and a required Ca/P ratio of 1.69 was achieved by S3. A comparative analysis has been performed on the degradation activity in Tris-HCl and the consequent pH changes during SBF treatment. The bio-analysis revealed that the biocomposite S3 shows enhanced bioactivity through a controlled degradation rate and secured cell viability of 88% at a concentration of 100 μg/ml. It also offers significant bacterial inhibition potency against E.coli and S.aureus bacteria.

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Influence of selenium dioxide (SeO2) on properties of bioglass in SiO2-Na2O-CaO-P2O5 system

Cited by 10 publications

References 32 publications

In vitro evaluation of novel low-pressure spark plasma sintered HA–BG composite scaffolds for bone tissue engineering

In vitro evaluation of novel low-pressure spark plasma sintered HA–BG composite scaffolds for bone tissue engineering

Physicochemical and in vitro bioactivity studies of bioactive glasses in the SiO2-CaO-MgO-P2O5, SiO2-Na2O-CaO-P2O5 and SiO2-Na2O-CaO-MgO-P2O5 systems

Calcium silicate biocomposites: effects of selenium oxide on the physico-mechanical features and their in-vitro biological assessments

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