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Open AccessArticle

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

Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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Materials 2018, 11(6), 963; https://doi.org/10.3390/ma11060963
Received: 25 April 2018 / Revised: 25 May 2018 / Accepted: 3 June 2018 / Published: 6 June 2018
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. View Full-Text
Keywords: mesoporous bioactive glass; spray pyrolysis; acetic acid mesoporous bioactive glass; spray pyrolysis; acetic acid
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Hong, B.-J.; Hsiao, C.-W.; Bakare, F.F.; Sun, J.-T.; Shih, S.-J. Effect of Acetic Acid Concentration on Pore Structure for Mesoporous Bioactive Glass during Spray Pyrolysis. Materials 2018, 11, 963.

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