title: NIR-to-NIR Two-Photon Scanning Laser Microscopy Imaging of Single Nanoparticles Doped by Yb(III) Complexes.
abstract: The photophysical and nonlinear optical properties of water-soluble chromophore-functionalised tris-dipicolinate complexes [LnL3](3-) (Ln=Yb and Nd) are thoroughly studied, revealing that only the Yb(III) luminescence can be sensitized by a two-photon excitation process. The stability of the complex in water is strongly enhanced by embedding in dispersible organosilicate nanoparticles (NPs). Finally, the spectroscopic properties of [NBu4]3 [YbL3] are studied in solution and in the solid state. The high brightness of the NPs allows imaging them as single objects using a modified two-photon microscopy setup in a NIR-to-NIR configuration.
authors.affiliation: Laboratoire de Chimie, CNRS UMR 5182, ENS Lyon, Université Lyon 1, 46 allée d'Italie, F-69364, Lyon, France.
authors.forename: Adrien
authors.initials: A
authors.lastname: Bourdolle
authors.affiliation: Laboratoire de Chimie, CNRS UMR 5182, ENS Lyon, Université Lyon 1, 46 allée d'Italie, F-69364, Lyon, France.|Aix Marseille Université, CNRS, CINaM UMR 7325, Campus de Luminy, Case 913, F-13288, Marseille, France.
authors.forename: Anthony
authors.initials: A
authors.lastname: D'Aléo
authors.affiliation: Univ. Grenoble Alpes, Institut NEEL, F-38042, Grenoble, France.|CNRS, Institut NEEL, F-38042, Grenoble, France.
authors.forename: Cécile
authors.initials: C
authors.lastname: Philippot
authors.affiliation: Laboratoire de Chimie, CNRS UMR 5182, ENS Lyon, Université Lyon 1, 46 allée d'Italie, F-69364, Lyon, France.
authors.forename: Patrice L
authors.initials: PL
authors.lastname: Baldeck
authors.affiliation: Université Claude Bernard Lyon 1, Institut Lumière Matière, UMR 5306 CNRS-Université Lyon 1, 10 rue Ada Byron, F-69622, Villeurbanne Cedex, France.
authors.forename: Yannick
authors.initials: Y
authors.lastname: Guyot
authors.affiliation: Univ. Grenoble Alpes, Institut NEEL, F-38042, Grenoble, France.|CNRS, Institut NEEL, F-38042, Grenoble, France.
authors.forename: Fabien
authors.initials: F
authors.lastname: Dubois
authors.affiliation: Univ. Grenoble Alpes, Institut NEEL, F-38042, Grenoble, France.|CNRS, Institut NEEL, F-38042, Grenoble, France.
authors.forename: Alain
authors.initials: A
authors.lastname: Ibanez
authors.affiliation: Laboratoire de Chimie, CNRS UMR 5182, ENS Lyon, Université Lyon 1, 46 allée d'Italie, F-69364, Lyon, France. Chantal.Andraud@ens-lyon.fr.
authors.forename: Chantal
authors.initials: C
authors.lastname: Andraud
authors.affiliation: Aix Marseille Université, CNRS, Centrale Marseille, Institut Fresnel, UMR 7249, F-13013, Marseille, France. sophie.brasselet@fresnel.fr.
authors.forename: Sophie
authors.initials: S
authors.lastname: Brasselet
authors.affiliation: Laboratoire de Chimie, CNRS UMR 5182, ENS Lyon, Université Lyon 1, 46 allée d'Italie, F-69364, Lyon, France. olivier.maury@ens-lyon.fr.
authors.forename: Olivier
authors.initials: O
authors.lastname: Maury
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry / Q000528:radiation effects*; D008027:Light; D018613:Microscopy, Confocal / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry / Q000528:radiation effects*; D010848:Picolinic Acids / Q000138:chemical synthesis / Q000737:chemistry / Q000528:radiation effects*; D019265:Spectroscopy, Near-Infrared; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D010848:Picolinic Acids; D015018:Ytterbium
keywords: fluorescence; lanthanide complexes; nanoparticles; two-photon microscopy; ytterbium