The Correlation of Surfactant Concentrations on the Properties of Mesoporous Bioactive Glass

Shih, Shao‐Ju; Lin, Yueqiang; Panjaitan, Leon Valentino Posma; Sari, Dyka Rahayu Meyla

doi:10.3390/ma9010058

Cited by 22 publications

(12 citation statements)

References 32 publications

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“…Next, Figure 8 b shows the comparison between specific surface areas and bioactivity of all BG powders. The graph shows that BG powders with higher specific surface area correspond to the higher value of I 1 /I 2 (i.e., greater HA formation), which agree well with previous results on MBG studies [ 13 , 30 , 31 ]. Finally, to the best of our knowledge, the surface area achieved in this study of 232.7 m 2 /g exceeds the P123-treated MBG particles of 165.0 m 2 /g [ 32 ] and thus becomes the highest specific surface area reported for SP-derived MBG powders to date.…”

Section: Discussionsupporting

confidence: 91%

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Effect of Acetic Acid Concentration on Pore Structure for Mesoporous Bioactive Glass during Spray Pyrolysis

et al. 2018

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Mesoporous bioactive glass (MBG) is considered as one of the most important materials in the field of bone implants and drug carriers, owing to its superior bioactivity. In previous studies, tri-block surfactants (e.g., F127 and P123) were commonly used as pore-forming agents. However, the use of surfactants may cause serious problems such as micelle aggregation and carbon contamination and thus decrease bioactivity. Therefore, in this study, we demonstrated the synthesis of MBG using acetic acid (HAc) as a pore-forming agent to overcome the disadvantages caused by surfactants. Both untreated and HAc-treated BG powders were synthesized using spray pyrolysis and various characterizations were carried out. The results show that a mesoporous structure was successfully formed and the highest specific surface area of ~230 m2/g with improved bioactivity was reported.

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Section: Discussionsupporting

confidence: 91%

“…However, the use of surfactants may cause problems such as micelle aggregation and carbon contamination. The micelle aggregation will produce particles with a wrinkled surface and hence reduce the porosity and surface area of the resulting specimen [ 13 ]. In addition, carbon contamination will inhibit the formation of HA.…”

Section: Introductionmentioning

confidence: 99%

Effect of Acetic Acid Concentration on Pore Structure for Mesoporous Bioactive Glass during Spray Pyrolysis

et al. 2018

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“…Several authors have reported that highly porous and small‐sized materials improve bioactivity and specific surface area . Particle shape and size also play an essential factor in cellular attachment and its responses as a consequence of the biological activities.…”

Section: Resultsmentioning

confidence: 99%

Effect of microwave and probe sonication processes on sol–gel‐derived bioactive glass and its structural and biocompatible investigations

2019

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This study is to investigate the effect of synthesis approaches on morphology, porosity, and biocompatibility of bioactive glass (BG). BG prepared through sol–gel approach was subsequently subjected to microwave and probe sonication techniques to investigate the structural and morphological effect. Hexagonal rod‐shaped morphology was obtained in sol–gel‐derived bioactive glass, whereas mesoporous particles and spherical‐shaped morphology were observed in probe‐sonicated and microwave‐assisted sol–gel approaches, respectively. The probe‐sonicated BG has mesopores with pore diameter of 14.7 nm, whereas surface porosity of 1.5 nm, and 3.5 nm for pure sol–gel and microwave‐assisted sol–gel fabricated BGs. Granular size, shape, and porosity have a significant role at the point of contact with cellular membrane. Therefore, we studied the biocompatibility with respect to morphology and porosity of the fabricated BGs. From this study, we observed that the BG prepared using probe sonication method controls the particle size, further it enhances the porosity that altogether improves the biocompatibility. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 108B:143–155, 2020.

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“…Additionally, the size of crystallites in the sample with surfactin after 24 h of ageing is significantly lower than in the control sample ( Figure 7 A). This results from oval and spherical depletions on the calcite crystal surface [ 52 ]. On the calcite surface, the edges are more rounded and truncated, indicating the presence of micelles on the edges of the crystals.…”

Section: Resultsmentioning

confidence: 99%

Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures

Bastrzyk

Fiedot‐Toboła

Maniak

et al. 2020

IJMS

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This study presents a new, simple way to obtain mesoporous calcite structures via a green method using an eco-friendly surface-active compound, surfactin, as a controlling agent. The effects of synthesis time and surfactin concentration were investigated. The obtained structures were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) coupled with gas mass spectrometry (QMS) analysis. The experimental data showed that surfactin molecules significantly changed the morphology of the calcite crystals, roughening and deforming the surface and creating a greater specific surface area, even at low biosurfactant concentrations (10 ppm). The size of the crystals was reduced, and the zeta potential value of calcium carbonate was more negative when more biosurfactant was added. The XRD data revealed that the biomolecules were incorporated into the crystals and slowed the transformation of vaterite into calcite. It has been shown that as long as vaterite is present in the medium, the calcite surface will be less deformed. The strong influence of surfactin molecules on the crystal growth of calcium carbonate was due to the interaction of surfactin molecules with free calcium ions in the solution as well as the biomolecules adsorption at the formed crystal surface. The role of micelles in crystal growth was examined, and the mechanism of mesoporous calcium carbonate formation was presented.

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The Correlation of Surfactant Concentrations on the Properties of Mesoporous Bioactive Glass

Cited by 22 publications

References 32 publications

Effect of Acetic Acid Concentration on Pore Structure for Mesoporous Bioactive Glass during Spray Pyrolysis

Effect of Acetic Acid Concentration on Pore Structure for Mesoporous Bioactive Glass during Spray Pyrolysis

Effect of microwave and probe sonication processes on sol–gel‐derived bioactive glass and its structural and biocompatible investigations

Surfactin as a Green Agent Controlling the Growth of Porous Calcite Microstructures

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