Formation of Closed Pores in Mesoporous Silica Nanoparticles by Hydrothermal Treatment

Mesoporous silica nanoparticles (MSNs) with closed pores have significant potential for applications such as lowdielectric-constant materials and bio-imaging owing to their controlled accessibility. In this study, we successfully prepared MSNs with closed pores by a simple hydrothermal treatment in ethanol. The mesostructure changed from open to closed mesopores through hydrothermal treatment. This simple method enabled the preparation of closed pores with encapsulated guest species.

Automated summary

In this study, mesoporous silica nanoparticles with closed pores were successfully prepared via a simple hydrothermal treatment in ethanol, leading to a transition from open to closed mesopores. This method allowed for the encapsulation of guest species within the closed pores.