Addition of a small amount of glass to improve the degradation behavior of calcium sulfate bioceramic

Chang, Man-Ping; Tsung, Yi-Chun; Hsu, Pei‐Yi; Tuan, Wei‐Hsing; Lai, Po‐Liang

doi:10.1016/j.ceramint.2014.09.043

Cited by 15 publications

(8 citation statements)

References 16 publications

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“…The phase composition of the scaffolds with 0, 3, 5, 10 wt % 45S5 bioglass was tested by XRD. The results showed that only the peak of CaSO 4 was detected in all scaffolds, which revealed that the addition of 45S5 bioglass did not alter the phase composition of CaSO 4 scaffolds and was consistent with the results of another researcher [ 23 ]. The XRD patterns of the scaffolds with 0 and 10 wt % 45S5 bioglass are displayed in Figure 2 .…”

Section: Resultssupporting

confidence: 90%

Enhanced Stability of Calcium Sulfate Scaffolds with 45S5 Bioglass for Bone Repair

Shuai

Zhou

et al. 2015

Materials

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Calcium sulfate (CaSO4), as a promising tissue repair material, has been applied widely due to its outstanding bioabsorbability and osteoconduction. However, fast disintegration, insufficient mechanical strength and poor bioactivity have limited its further application. In the study, CaSO4 scaffolds fabricated by using selective laser sintering were improved by adding 45S5 bioglass. The 45S5 bioglass enhanced stability significantly due to the bond effect of glassy phase between the CaSO4 grains. After immersing for four days in simulated body fluid (SBF), the specimens with 45S5 bioglass could still retain its original shape compared as opposed to specimens without 45S5 bioglass who experienced disintegration. Meanwhile, its compressive strength and fracture toughness increased by 80% and 37%, respectively. Furthermore, the apatite layer was formed on the CaSO4 scaffolds with 45S5 bioglass in SBF, indicating good bioactivity of the scaffolds. In addition, the scaffolds showed good ability to support the osteoblast-like cell adhesion and proliferation.

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Section: Resultssupporting

confidence: 90%

Enhanced Stability of Calcium Sulfate Scaffolds with 45S5 Bioglass for Bone Repair

Shuai

Zhou

et al. 2015

Materials

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“…However, since the increased grain size causes decreased strength values, various grain growth inhibitors are often added to avoid this. These inhibitors also prevent growth by settling in grain boundaries [28]. In their study, Kuo et with colloidal silica suspension (20 % by weight) [25].…”

Section: S-csamentioning

confidence: 97%

“…Sintering technique is applied to increase the strength of CS and decrease its degradation rates, and several grain growth inhibitors (SiO 2 , P 2 O 5 , CaO, and NaHCO 3 ) are added. Since increased grain size causes decreased strength values, various grain growth inhibitors are often added to CS to avoid this [26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

A NOVEL METHOD TO SYNTHESIS OF CALCIUM SULPHATE ANHYDRITE SELF-DOPED WITH SiO₂ FROM RED MUD AS A BIOCERAMIC

KART¹

2021

Ceramics - Silikaty

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In this study, red mud was used to synthesis of calcium sulphate anhydrite (CSA) self-doped with SiO 2 for production bioceramic. The agitation sulphuric acid leaching method was used at atmospheric conditions to synthesis of CSA powder that was pressed as green body pellets for sintering procedure at a temperature varying from 800 °C to 1200 °C. After sintering, mechanical, chemical and in vitro tests were performed to determine the optimum parameters for bioceramic production. The in vitro tests were conducted to determine the biodegradability and bioactivity characteristics of sintered--CSA (S-CSA). CSA powder was synthesized at optimum leaching parameters (95 °C, 14 M H 2 SO 4 , 0.10 (w/v), 180 min.), its mineralogical composition was CSA (97.9 %) and SiO 2 (2.1 %). Density, compressive strength and hardness were reached 2.65 g•cm 114.67 MPa and 149.20 HV, respectively at 1100 °C of S-CSA pellets. As the temperature increased wollastonite/larnite phases formed. The homogenous bone-like structure hydroxyapatite phase was detected at 28 th day of the in vitro test. As a conclusion, bioactive CSA self-doped with SiO 2 could be produced directly from red mud in a single step, without using additional substances and that was obtained to ensure the use as a bioceramic.

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“…There is a strong potential application owing to good thermal stability, chemical resistance, satisfactory biocompatibility, and good compatibility with polymers. They are promising not only as reinforcing materials widely used in plastics, ceramics, rubber, and paper making [1][2][3][4], but also used in bone regeneration, bone graft substitutes, drug release scaffolds, and bioceramics [5][6][7][8]. Furthermore, the price of HH whiskers as reinforcing materials is only 1/200-1/300 that of SiC whiskers [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of calcium sulfate hemihydrate whiskers using oyster shells

et al. 2015

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Herein, the feasibility of preparing long and homogeneous hemihydrate (HH) whiskers using waste oyster shell was investigated. The whiskers formed from the sintered raw material had higher aspect ratios and more uniform morphology than non-sintered. The effect of reaction temperature, reaction time, and concentration were investigated. It was found that the optimum reaction temperature, reaction time, and concentration for stable and well-grown whiskers were 140°C, 5 h, and 4 wt%, respectively. Direct transition from calcium sulfate dehydrate (DH) to HH was detected by X-ray diffraction (XRD) patterns, and the result showed DH completely transformed to HH after 5 h. The preferred direction of growth along the c-axis was confirmed by XRD pattern, selected area diffraction pattern, and highresolution transmission electron microscopy (HRTEM).

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Addition of a small amount of glass to improve the degradation behavior of calcium sulfate bioceramic

Cited by 15 publications

References 16 publications

Enhanced Stability of Calcium Sulfate Scaffolds with 45S5 Bioglass for Bone Repair

Enhanced Stability of Calcium Sulfate Scaffolds with 45S5 Bioglass for Bone Repair

A NOVEL METHOD TO SYNTHESIS OF CALCIUM SULPHATE ANHYDRITE SELF-DOPED WITH SiO₂ FROM RED MUD AS A BIOCERAMIC

Synthesis of calcium sulfate hemihydrate whiskers using oyster shells

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