Incorporation of B2O3 in CaO-SiO2-P2O5 bioactive glass system for improving strength of low-temperature co-fired porous glass ceramics

Yang, Xianyan; Zhang, Lei; Chen, Xiaoyi; Sun, Xin; Gao, Yang; Guo, Xingzhong; Yang, Hui; Gao, Changyou; Gou, Zhongru

doi:10.1016/j.jnoncrysol.2012.02.005

Cited by 88 publications

(56 citation statements)

References 44 publications

(43 reference statements)

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“…Higher proliferation rates were observed with the media 14 conditioned with BBG-Mg than for the BBG-Ca or BBG-Sr-conditioned media ( Figure 5). 15 Furthermore, culture medium conditioned by 45S5 bioglass was found to be significantly more 16 cytotoxic than culture medium conditioned with BBG glasses and glass-ceramics. Crystallisation of 17 the glasses was found to have no significant effect on cellular behaviour at day 1 however at day 3, 18 different cellular behaviour profiles were observed at all the concentrations tested.…”

Section: In Vitro Cytotoxicitymentioning

confidence: 95%

“…The endothermic peaks are related to 3 the molecular re-arrangement in glass structure preceding and during glass crystallisation, a process 4 known for crystal nucleation and growth 15,29 . In order to induce crystal nucleus formation in the 5 glass structure, BBGs were kept for 2 hours at Tg and subsequently for 2 hours at each Tc.…”

Section: Differential Thermal Analysis 12mentioning

confidence: 99%

“…Frequently, it has been associated with the increase in bone 20 resistance to fractures [12][13][14] . Thereby, borosilicate bioactive glasses (BBGs) composition may be 21 used to achieve a more controlled release of specific component ions in order to trigger a range of 22 biological responses 15 . Control of the surface reactions and therefore of the biodegradation and 23 bioactivity of implanted materials can be achieved by varying the chemical nature and/or 24 concentration of the BBGs constituents.…”

Section: Introductionmentioning

confidence: 99%

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Design and Properties of Novel Substituted Borosilicate Bioactive Glasses and Their Glass-Ceramic Derivatives

Fernandes

Gentile

Moorehead

et al. 2016

Crystal Growth & Design

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1Three novel borosilicate bioactive glasses (BBGs) of general formula of 0.05Na2O0.35x 2 0.20B2O30.40SiO2 (molar ratio, where x = MgO or CaO or SrO) were prepared and used to 3 investigate the effect of crystallisation on their properties including cytotoxicity. The three post-4 melt compositions were determined using X-ray fluorescence spectroscopy and crystallisation 5 events were studied using differential thermal analysis and x-ray diffraction. This information was 6 used to determine heat treatments to prepare glass-ceramics by controlled crystallisation. X-ray 7 diffraction analysis and Fourier transform infrared spectroscopy showed that, after higher heat 8 treatment temperatures (800-900 ºC), borosilicate bioactive glass-ceramics (BBGCs) contained 9 mainly borate and silicate crystalline phases. Specifically, BBG-Mg, BBG-Ca and BBG-Sr glass-10 ceramics detected the presence of magnesium silicate-Mg2(SiO3)2 and magnesium borate-Mg2B2O5; 11 wollastonite-2M-CaSiO3 and calcium borate-Ca(BO2)2; and strontium silicate-SrSiO3 and strontium 12 borate-Sr2B2O5, respectively. In vitro cytotoxicity tests were performed using the mouse fibroblast 13 cell line (L929). Glass and glass ceramic at concentrations lower than 50 mg/ml did not exhibit any 14 level of cytotoxicity when compared with the control. However, quantitative evaluation indicated 15 that greater cell growth occurred in the presence of materials with crystalline phases. Control of 16BBGs crystallisation may therefore be used to influence the biocompatibility of these glass-ceramic 17 systems. 18

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Section: In Vitro Cytotoxicitymentioning

confidence: 95%

Section: Differential Thermal Analysis 12mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Properties of Novel Substituted Borosilicate Bioactive Glasses and Their Glass-Ceramic Derivatives

Fernandes

Gentile

Moorehead

et al. 2016

Crystal Growth & Design

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“…Walau bagaimanapun, penghabluran yang terhasil mengurangkan sifat kebioaktifan kaca (Peitl et al 2001). Namun, penghabluran komposisi tertentu kaca yang disinter pada suhu tinggi didapati masih mampu mengekalkan sifat kebioaktifan in vitro yang baik serta sifat mekanikal yang dipertingkatkan (Peitl et al 2012;Yang et al 2012). Maka, proses sinteran terkawal pada suhu yang optimum terhadap komposisi tertentu kaca mampu menghasilkan bahan seramik kaca bioaktif dengan kekuatan mekanikal yang mencukupi bagi tujuan bioperubatan yang spesifik.…”

Section: Pengenalanunclassified

Kesan Kandungan Fosfat Berbeza terhadap Pembentukan Morfologi Permukaan, Penghabluran, Fasa, Ikatan Kimia dan Kekuatan Mampatan Bio-kaca Sol-Gel Tersinter

Adam

Shamsudin²,

Zainuddin

et al. 2018

JSM

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ABSTRAKKajian ini bertujuan untuk mengkaji kesan kandungan fosfat berbeza (X = 10, 15 dan 20% mol) PENGENALANKebolehupayaan serbuk kaca bioaktif (bio-kaca) yang boleh disinter merupakan faktor yang sangat penting dalam membangunkan teknologi penghasilan bahan implan yakni daripada perancah berkeliangan tinggi kepada bahan salutan bioaktif. Walau bagaimanapun, bahan kaca bioaktif ini mempunyai sifat mekanikal yang tidak bersesuaian dengan tulang hidup yang bersifat rapuh dan tidak mempunyai kekuatan mekanikal yang mencukupi menyebabkan bahan ini tidak sesuai digunakan terutamanya di bawah bebanan tinggi (Ma et al. 2010). Disebabkan itu, kajian yang dijalankan sebelum ini terhadap bahan kaca bioaktif dilihat terhad pada bentuk serbuk termasuklah yang bersaiz nano (Oliveira et al. 2013). Walau bagaimanapun, beberapa ciri dan sifat penting yang dimiliki oleh bahan kaca bioaktif ini menyebabkan bahan ini amat diperlukan dalam aplikasi

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“…3 Results and discussion 3.1 Crystalline phase and size [17] reported that heating crystallized within the temperature region of 800 °C to 900 °C and mostly in two stages, corresponding to calcium borate and calcium silicate crystallization. The crystalline size was estimated from most intense and sharp diffraction peak at 29.6° by using Eq.…”

Section: Characterizationmentioning

confidence: 99%

The influence of annealing temperature and heating rate on thermoluminescence properties of nanocrystalline calcium borate powder

2017

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Abstract. We have reported the influence of annealing temperature and heating rate on thermoluminescence (TL) properties of nanocrystalline calcium borate, CaB2O4, powder synthesized by solution combustion method. Powder X-ray diffraction experiments were carried out on CaB2O4 to get the crystal phase and size. The samples were annealed using the TLD oven and exposed to cobalt-60 source. TL glow curves were measured and recorded using a Harshaw model 3500 TLD reader. The crystal phase confirmed one major phase of CaB2O4 with 27 nm in size. CaB2O4 has a simple glow curve with only one and a well defined peak at around 150 °C. TL intensity was higher after annealing the material before irradiation which indicated the importance of annealing. It was found that an annealing temperature at 300 °C for one hour and the heating rate of 10 °C s -¹ was the best procedure to produce high TL intensity.

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Incorporation of B2O3 in CaO-SiO2-P2O5 bioactive glass system for improving strength of low-temperature co-fired porous glass ceramics

Cited by 88 publications

References 44 publications

Design and Properties of Novel Substituted Borosilicate Bioactive Glasses and Their Glass-Ceramic Derivatives

Design and Properties of Novel Substituted Borosilicate Bioactive Glasses and Their Glass-Ceramic Derivatives

Kesan Kandungan Fosfat Berbeza terhadap Pembentukan Morfologi Permukaan, Penghabluran, Fasa, Ikatan Kimia dan Kekuatan Mampatan Bio-kaca Sol-Gel Tersinter

The influence of annealing temperature and heating rate on thermoluminescence properties of nanocrystalline calcium borate powder

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