Matériaux Hybrides : Systèmes conjugués/ Silice Polyélectrolytes conjugués précurseurs d’ionogels luminescents Phenylene–ethynylene monomer and copolymer bearing pendant imidazolium groups were synthesized in order to obtain luminescent entities highly soluble in ionic liquids (ILs). Their stabilities under non-aqueous sol–gel conditions (i.e. using formic acid) allowed their incorporation into silica in the form of ionogels. This was performed in a one step synthesis and the resulting materials were found to be easily processable as monoliths and showed interesting luminescent properties. Given the high solubility of 2,4-dinitrotoluene in the investigated IL, (1butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide), the relevance of these ionogels as luminescent sensors was tested. One Pot Synthesis of fluorescent p-conjugated materials ; immobilization of phenylene ethynylene polyelectrolytes in silica confined ionogels. N. CHEMINET ; T. JARROSSON; J.-P . LERE-PORTE ; F . SEREIN-SPIRAU; L.A. CURY ; J. J. E. MOREAU ; L. VIAU ; A. VIOUX. J. Mater. Chem,. 2011, 21, 13588-13593. Fonctionnalisation de Nanoparticules de silice pour la délivrance de drogue A therapy of cancer cells: Two-photon-triggered camptothecin delivery (see picture) with nanoimpellers was studied in MCF-7 breast cancer cells. A fluorophore with a high twophoton absorption cross-section was first incorporated in the nanoimpellers. Fluorescence resonance energy transfer (FRET) from the fluorophore to the azobenzene moiety was demonstrated. Two-Photon-Triggered Drug delivery in Cancer Cells via Nanoimpellers J. CROISSANT; M. MAYNADIER; A. GALLUD; H. P. N’DONGO, J. L. NYALOSASO ; G. DERRIEN ; C. CHARNAY ; J.-O. DURAND, ; L. RAEM ; F. SEREIN-SPIRAU ; N. CHEMINET ; T. JARROSSON ; O. MONGIN ; M. BLANCHARD-DESCE ; M. GARY-BOBO ; M. GARCIA ; J.LU ; F. TAMANOI ; D. TARN ; T.M. GUARDADO-ALBAREZ ; J.I. ZINK. Angew. Chem.Ed. Engl. 2013, 52 (51) 13813-13817