Reference : Au bipyramids/mSiO2 core-shell nanoparticles and their metal-enhanced generation of s...
Scientific congresses and symposiums : Unpublished conference/Abstract
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/224925
Au bipyramids/mSiO2 core-shell nanoparticles and their metal-enhanced generation of singlet oxygen – Application in photooxygenations
English
Mendoza Gallego, Carlos mailto [Université de Liège - ULiège > Department of Chemical Engineering > Génie chimique - Nanomatériaux et interfaces >]
Château, Denis [ENS Lyon > Laboratoire de Chimie > > >]
Désert, Anthony [ENS Lyon > Laboratoire de Chimie > > >]
Emmanuel, Noémie mailto [Université de Liège - ULiège > Département de chimie (sciences) > CITOS >]
Khrouz, Lhoussain [ENS Lyon > Laboratoire de Chimie > > >]
Monnereau, Cyrille [ENS Lyon > Laboratoire de Chimie > > >]
Dreesen, Laurent mailto [Université de Liège - ULiège > Département de physique > Biophotonique >]
Monbaliu, Jean-Christophe mailto [Université de Liège - ULiège > Département de chimie (sciences) > CITOS >]
Parola, Stéphane [ENS Lyon > Laboratoire de Chimie > > >]
Heinrichs, Benoît mailto [Université de Liège - ULiège > Department of Chemical Engineering > Génie chimique - Nanomatériaux et interfaces >]
24-Jul-2018
Yes
No
International
ICNM2018 - 3rd International Conference on NanoMaterials for health, energy and the environment
from 22-07-2018 to 27-07-2018
University of the Sunshine Coast
Sunshine Coast
Australia
[en] Singlet oxygen ; Gold ; Continous-flow
[en] 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-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.
http://hdl.handle.net/2268/224925

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