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

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