In the past three decades mesoporous silica nanomaterials proved to be one of the most versatile platforms in the realms of solid supported catalysis, biomedical applications, sensing (in both gas and liquid) and more recently, optoelectronics. The recent studies on naturally occurring silica materials from glass sponges and diatoms, have pointed out very interesting optical properties, such as light waveguiding, diffraction, focusing, and photoluminescence, owed to both their intricate geometries, as well as low refractive index and a very low absorption coefficient in the visible range. The presentation will elaborate on the potential of highly ordered mesoporous silica-as a synthetic system-to replicate a similar behavior with the ordered silica-based marine organisms in the interaction with light and the benefits for MSN in novel sensing mechanisms. Specifically, significant (more than one order of magnitude) surface-enhanced Raman scattering (SERS) is observed when using MSN in combination with plasmonic nanoparticles. Surface modifications and the ability to tuning optical properties of MSNs will be also discussed.

Teaching the old mesoporous silica nanospheres (MSN) new tricks: Sensing capabilities

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.