Gold nanomaterials display interesting nanoplasmonic features with potential application in various fields depending on the size and shape of the metal nanoparticle (NP). Au bipyramids (AuBPs) exhibit intense and well-defined plasmon resonance, easily tunable with the aspect ratio and synergy between Au NPs and chromophores can enhance the photophysical properties of nearby molecules. In Rose Bengal (RB)-NPs systems for the production of singlet oxygen (1O2), it is now well established that the control of the dye-to-NP distance ranging from 10 to 20 nm is crucial to achieve the proper coupling between plasmon resonance and the dye1. We have developed AuBPs@mesoporous SiO2 core-shell nanostructures to control the distance between metallic surface and photosensitizers in order to increase the production of 1O2 through metal-enhanced fluorescence (MEF). An enhancement of 1O2 generation has been shown with the obtained anisotropic AuBPs and AuBPs@mSiO2 in presence of RB using different methods of 1O2 quantification. They are of interest to the application in photooxygenation reactions e.g. α-terpinene to ascaridole, an anthelmintic drug.
نوع الوثيقة:
conferencePaper
اللغة:
English
Relation:
The 2nd International Conference on Advanced Materials and Processes for Environment, Energy and Health, Montréal, Canada (October 31st - November 2nd, 2018)
