A 5-(difluorenyl)-1,10-phenanthroline-based Ru(II) complex as a coating agent for potential multifunctional gold nanoparticles.
Fiche publication
Date publication
juillet 2014
Auteurs
Membres identifiés du Cancéropôle Est :
Dr FROCHOT Céline
Tous les auteurs :
Moreau J, Lux F, Four M, Olesiak-Banska J, Matczyszyn K, Perriat P, Frochot C, Arnoux P, Tillement O, Samoc M, Ponterini G, Roux S, Lemercier G
Lien Pubmed
Résumé
The synthesis and photophysical properties of small gold nanoparticles (NPs, AuNP-[Ru-PFF]) surface functionalized by 5-substituted-1,10-phenanthroline-ligand based Ru(II) complexes are described. Luminescence of the grafted and confined Ru(II) complexes is totally quenched on the gold surface. Nonlinear optical properties were determined via Z-scan measurements in the range 600-1300 nm for both the free Ru(II) complex and the related NPs. In the short wavelength range (around 600 nm) the behaviour switches from that of two-photon absorption (2PA) for the complex to saturable absorption for the NPs. 2PA applications such as optical power limiting or two-photon dioxygen sensitization can be anticipated for these nanoplatforms.
Référence
Phys Chem Chem Phys. 2014 Jul 28;16(28):14826-33