Synthesis and characterization of mesoporous bioactive glasses with highly ordered structures and high surface areas by a self-assembly process

Wu, Zhenlong; Zhou, Xiang; Zhang, Yin; Luan, Jiapan; Yang, Xiaoran; Wu, Zhiwei; Wang, Bowen

doi:10.1016/j.jnoncrysol.2019.05.007

Cited by 10 publications

(5 citation statements)

References 29 publications

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“…However, when soaking in SBF for 3 days, three P–O crystalline vibrational bands near to 568, 602 and 963 cm −1 were detected (the noise near 500 cm −1 hindered the accurate analysis of the 568 cm −1 band). Furthermore, three other new vibrational bands were detected near to 1456, 1414 and 870 cm −1 , which are assigned with C-O bond indicating the growth of the HCA layer on the surface of MBG 80S15 [ 47 , 48 , 49 ].…”

Section: Resultsmentioning

confidence: 99%

“…However, when soaking in SBF for 3 days, three P-O crystalline vibrational bands near to 568, 602 and 963 cm −1 were detected (the noise near 500 cm −1 hindered the accurate analysis of the 568 cm −1 band). Furthermore, three other new vibrational bands were detected near to 1456, 1414 and 870 cm −1 , which are assigned with C-O bond indicating the growth of the HCA layer on the surface of MBG 80S15 [47][48][49]. The above SEM, XRD and FTIR results indicate that the MBGs 80S15 can induce the formation of an HCA layer on their surface even for short SBF soaking periods, which corroborates the superior in vitro bone forming bioactivity, pointing out the interesting properties of the MBG 80S15 as a material for bone tissue engineering.…”

Section: Eds (Atmentioning

confidence: 95%

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Polyvinylpyrrolidone Nanofibers Incorporating Mesoporous Bioactive Glass for Bone Tissue Engineering

et al. 2023

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Composite biomaterials that combine osteoconductive and osteoinductive properties are a promising approach for bone tissue engineering (BTE) since they stimulate osteogenesis while mimicking extracellular matrix (ECM) morphology. In this context, the aim of the present research was to produce polyvinylpyrrolidone (PVP) nanofibers containing mesoporous bioactive glass (MBG) 80S15 nanoparticles. These composite materials were produced by the electrospinning technique. Design of experiments (DOE) was used to estimate the optimal electrospinning parameters to reduce average fiber diameter. The polymeric matrices were thermally crosslinked under different conditions, and the fibers’ morphology was studied using scanning electron microscopy (SEM). Evaluation of the mechanical properties of nanofibrous mats revealed a dependence on thermal crosslinking parameters and on the presence of MBG 80S15 particles inside the polymeric fibers. Degradation tests indicated that the presence of MBG led to a faster degradation of nanofibrous mats and to a higher swelling capacity. The assessment of in vitro bioactivity in simulated body fluid (SBF) was performed using MBG pellets and PVP/MBG (1:1) composites to assess if the bioactive properties of MBG 80S15 were kept when it was incorporated into PVP nanofibers. FTIR and XRD analysis along with SEM–EDS results indicated that a hydroxy-carbonate apatite (HCA) layer formed on the surface of MBG pellets and nanofibrous webs after soaking in SBF over different time periods. In general, the materials revealed no cytotoxic effects on the Saos-2 cell line. The overall results for the materials produced show the potential of the composites to be used in BTE.

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Section: Resultsmentioning

confidence: 99%

Section: Eds (Atmentioning

confidence: 95%

Polyvinylpyrrolidone Nanofibers Incorporating Mesoporous Bioactive Glass for Bone Tissue Engineering

et al. 2023

View full text Add to dashboard Cite

show abstract

“…However, when soaking in SBF for 3 days, three P-O crystalline vibrational bands near to 568, 602, and 963 cm -1 were detected (the noise near 500 cm -1 hindered the accurate analysis of 568 cm -1 band). Furthermore, other three new vibrational bands were detected near to 1456, 1414, and 870 cm -1 , which are assigned with C-O bond indicating the growth of the HCA layer on the surface of MBG 80S15 [33][34][35].…”

Section: Bioactivity Assaymentioning

confidence: 95%

Polyvinylpyrrolidone Nanofibers Incorporating Mesoporous Bioactive Glass for Bone Tissue Engineering

Matos¹,

Silva²,

Soares³

et al. 2023

Preprint

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Composite biomaterials that combine osteoconductive and osteoinductive properties are a promising approach for bone tissue engineering (BTE) since it allows osteogenesis stimulation while mimicking the extracellular matrix (ECM) morphology. In this context, the aim of the present research work was to produce polyvinylpyrrolidone (PVP) nanofibers containing mesoporous bioactive glass (MBG) 80S15 nanoparticles. These composite materials were produced by electrospinning technique. The design of experiments (DOE) was used to estimate the optimal electrospinning parameters to reduce average fiber diameter. The polymeric matrices were thermally crosslinked under different conditions, and the fiber’s morphology was studied using scanning electron microscopy (SEM). Evaluation of the mechanical properties of nanofibrous mats revealed a dependence on thermal crosslinking parameters and on the presence of MBG 80S15 particles inside the polymeric fibers. Degradation tests indicated that the presence of MBG led to a faster degradation of nanofibrous mats. On the other hand, MBG presence also leads to higher swelling capacity. The assessment of in vitro bioactivity in simulated body fluid (SBF) was performed in MBG pellets and PVP/MBG (1:1) composites to assess whether the bioactive properties of MBG 80S15 were kept when it was incorporated into PVP nanofibers. FTIR and XRD analysis along with SEM–EDS results indicated that a hydroxy-carbonate apatite (HCA) layer was formed on the surface of MBG pellets and nanofibrous webs after soaking in SBF over different time periods. In general, the materials revealed no cytotoxic effects on Saos-2 cell line. The overall results for the produced materials show the potential of the composites to be used in BTE.

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“…The differences between CMK‐8 and MBG are attributed to the size of pores and pore volume, which the CMK‐8 has a more excellent size in the both parameter. These homogeneous nanomaterials have less pore size and pore volume than CMK‐8 23 . In particular, ordered mesoporous carbons CMK‐ n ( n = 1–9) have been discovered by Ryoo et al 24 and prepared by using different mesoporous silica templates such as MCM‐48, SBA‐15, and KIT‐6 and carbons precursors like sucrose, furfuryl alcohol, ethylene glycol, and propylene glycol.…”

Section: Introductionmentioning

confidence: 99%

Design of an acidic sulfonated mesoporous carbon catalyst for the synthesis of butyl levulinate from levulinic acid

Bakhtiari

Chermahini

Babaei

2021

Env Prog and Sustain Energy

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In this work, the ordered mesoporous carbon CMK‐8 which has some advantages, including large specific pore volume, high surface area, and also its tunable pore size, was synthesized, then functionalized with various sulfonic acid groups and utilized as a heterogeneous catalyst in the esterification reaction of levulinic acid (LA) into n‐butyl levulinate (BL). The prepared catalysts were characterized using Fourier transformed‐infrared spectroscopy, N2 adsorption–desorption, small‐angle X‐ray diffraction analysis, elemental analysis, transmission electron microscopy, field emission scanning electron microscope, thermal gravimetric analysis, energy dispersive X‐ray spectroscopy, and elemental mapping. The important parameters such as reaction temperature, reaction time, catalyst amount, and LA to n‐BuOH molar ratio were investigated by Taguchi experimental design. Maximum BL yield (75.1%) and LA conversion (95%) were obtained with CMK‐8‐SO3H catalyst under optimum reaction conditions: reaction temperature 130°C, reaction time 10 h, catalyst dosage 0.015 g, and LA to n‐BuOH molar ratio 1:10. Among the entire parameters, LA to n‐BuOH molar ratio followed by the reaction temperature, catalyst concentration, and reaction time have the most influence on BL yield. Finally, the regeneration and reusability of the CMK‐8‐SO3H catalyst were studied, and the recovered catalyst showed high stability and activity after four runs.

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Synthesis and characterization of mesoporous bioactive glasses with highly ordered structures and high surface areas by a self-assembly process

Cited by 10 publications

References 29 publications

Polyvinylpyrrolidone Nanofibers Incorporating Mesoporous Bioactive Glass for Bone Tissue Engineering

Polyvinylpyrrolidone Nanofibers Incorporating Mesoporous Bioactive Glass for Bone Tissue Engineering

Polyvinylpyrrolidone Nanofibers Incorporating Mesoporous Bioactive Glass for Bone Tissue Engineering

Design of an acidic sulfonated mesoporous carbon catalyst for the synthesis of butyl levulinate from levulinic acid

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