A shelf-life study of silica- and carbon-based mesoporous materials

Björk EM, Atakan A, Wu PH, Bari A, Pontremoli C, Zheng K, Giasafaki D, Iviglia G, Torre E, Cassinelli C, Morra M, Steriotis T, Charalambopoulou G, Boccaccini AR, Fiorilli S, Vitale-Brovarone C, Robertsson F, Odén M (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Journal of Industrial and Engineering Chemistry Elsevier

Book Volume: 101

Pages Range: 205-213

DOI: 10.1016/j.jiec.2021.06.011

Abstract

Mesoporous silica- and carbon-based materials, including bioactive glasses, have proven potential as components of medical devices and as drug carriers. From an application perspective, knowledge about the shelf-life stability of these materials under various conditions is vital. Here, mesoporous bioactive glasses (MBGs) synthesized by aerosol-assisted spray-drying and by a batch sol–gel method, mesoporous silicas of SBA-15 type, and mesoporous carbons CMK-1 and CMK-3 have been stored under varying conditions, e.g. at different temperature and relative humidity (RH), and in different storage vessels. The results show that the silica-based materials stored in Eppendorfs are sensitive to humidity. Spray dried MBGs decompose within 1 month at a RH >5%, whilst sol–gel MBGs are more stable up to a RH >60%. Changing the storage vessel to sealed glass flasks increases the MBGs lifetime significantly, with no degradation during 2 months of storage at a RH = 75%. SBA-15 stored in Eppendorfs are more stable compared to MBGs, and addition of F- ions added during the synthesis affects the material degradation rate. Mesoporous carbons are stable under all conditions for all time points. This systematic study clearly demonstrates the importance of storage conditions for mesoporous materials which is crucial knowledge for commercialization of these materials.

Authors with CRIS profile

Kai Zheng Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien)

Involved external institutions

Linköping University SE Sweden (SE) Nanolith Sverige AB SE Sweden (SE) Politecnico di Torino IT Italy (IT) National Centre for Scientific Research (NCSR) "Demokritos" GR Greece (GR) NobilBio Ricerche S.r.l. IT Italy (IT)

How to cite

APA:

Björk, E.M., Atakan, A., Wu, P.H., Bari, A., Pontremoli, C., Zheng, K.,... Odén, M. (2021). A shelf-life study of silica- and carbon-based mesoporous materials. Journal of Industrial and Engineering Chemistry, 101, 205-213. https://dx.doi.org/10.1016/j.jiec.2021.06.011

MLA:

Björk, Emma M., et al. "A shelf-life study of silica- and carbon-based mesoporous materials." Journal of Industrial and Engineering Chemistry 101 (2021): 205-213.

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