Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles

Nanoparticle-based temperature imaging is an emerging field of advanced applications. Herein, the sensitivity of the phosphorescence of tris(bipyridine)ruthenium(II)-doped silica nanoparticles towards temperature is studied. 130nm size particles were prepared by a modification of Stöber's metho...

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Autores principales:	Mirenda, M., Levi, V., Bossi, M.L., Bruno, L., Bordoni, A.V., Regazzoni, A.E., Wolosiuk, A.
Formato:	JOUR
Materias:	Doped silica Fluorescence quenching Fluorescent nanoparticles Luminescent temperature nanosensors Tris(bipyridine)ruthenium(II) Advanced applications Bipyridines Fluorescence measurements Microenvironments Photophysical properties Scanning confocal microscopy Silica nanoparticles Steady-state emissions Temperature imaging Temperature response Thermal process Confocal microscopy Fluorescence Nanoparticles Quenching Silica Ruthenium anion nanoparticle oxygen ruthenium silicon dioxide article confocal microscopy fluorescence analysis luminescence microenvironment particle size pH priority journal scanning confocal microscopy sensitivity analysis steady state temperature dependence thermal analysis 2,2'-Dipyridyl Luminescence Molecular Structure Particle Size Silicon Dioxide Surface Properties Temperature
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00219797_v392_n1_p96_Mirenda
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00219797_v392_n1_p96_Mirenda
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spelling	todo:paper_00219797_v392_n1_p96_Mirenda2023-10-03T14:25:14Z Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles Mirenda, M. Levi, V. Bossi, M.L. Bruno, L. Bordoni, A.V. Regazzoni, A.E. Wolosiuk, A. Doped silica Fluorescence quenching Fluorescent nanoparticles Luminescent temperature nanosensors Tris(bipyridine)ruthenium(II) Advanced applications Bipyridines Fluorescence measurements Fluorescence quenching Fluorescent nanoparticles Microenvironments Photophysical properties Scanning confocal microscopy Silica nanoparticles Steady-state emissions Temperature imaging Temperature response Thermal process Confocal microscopy Fluorescence Nanoparticles Quenching Silica Ruthenium anion nanoparticle oxygen ruthenium silicon dioxide article confocal microscopy fluorescence analysis luminescence microenvironment particle size pH priority journal scanning confocal microscopy sensitivity analysis steady state temperature dependence thermal analysis 2,2'-Dipyridyl Luminescence Molecular Structure Nanoparticles Particle Size Silicon Dioxide Surface Properties Temperature Nanoparticle-based temperature imaging is an emerging field of advanced applications. Herein, the sensitivity of the phosphorescence of tris(bipyridine)ruthenium(II)-doped silica nanoparticles towards temperature is studied. 130nm size particles were prepared by a modification of Stöber's method, that allows the incorporation of Ru[(bpy)3]2+ into the outer particle shell. The entrapped Ru[(bpy)3]2+ retains its photophysical properties, yet the emission of the particles is not affected by the presence of O2, neither by anionic quenchers; quenching by MV2+, on the other hand, is strongly dependent on pH. Between 20 and 60°C, the steady-state emission of the particles decreases linearly with increasing temperature. The slope of the straight line diminishes slightly on thermal cycling, but soon stabilizes. Fluorescence measurements by scanning confocal microscopy indicate that the silica nanoparticles doped with Ru[(bpy)3]2+ can indeed be employed to probe thermal processes in micro-environments. © 2012 Elsevier Inc. Fil:Mirenda, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Levi, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bossi, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bruno, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bordoni, A.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00219797_v392_n1_p96_Mirenda
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Doped silica Fluorescence quenching Fluorescent nanoparticles Luminescent temperature nanosensors Tris(bipyridine)ruthenium(II) Advanced applications Bipyridines Fluorescence measurements Fluorescence quenching Fluorescent nanoparticles Microenvironments Photophysical properties Scanning confocal microscopy Silica nanoparticles Steady-state emissions Temperature imaging Temperature response Thermal process Confocal microscopy Fluorescence Nanoparticles Quenching Silica Ruthenium anion nanoparticle oxygen ruthenium silicon dioxide article confocal microscopy fluorescence analysis luminescence microenvironment particle size pH priority journal scanning confocal microscopy sensitivity analysis steady state temperature dependence thermal analysis 2,2'-Dipyridyl Luminescence Molecular Structure Nanoparticles Particle Size Silicon Dioxide Surface Properties Temperature
spellingShingle	Doped silica Fluorescence quenching Fluorescent nanoparticles Luminescent temperature nanosensors Tris(bipyridine)ruthenium(II) Advanced applications Bipyridines Fluorescence measurements Fluorescence quenching Fluorescent nanoparticles Microenvironments Photophysical properties Scanning confocal microscopy Silica nanoparticles Steady-state emissions Temperature imaging Temperature response Thermal process Confocal microscopy Fluorescence Nanoparticles Quenching Silica Ruthenium anion nanoparticle oxygen ruthenium silicon dioxide article confocal microscopy fluorescence analysis luminescence microenvironment particle size pH priority journal scanning confocal microscopy sensitivity analysis steady state temperature dependence thermal analysis 2,2'-Dipyridyl Luminescence Molecular Structure Nanoparticles Particle Size Silicon Dioxide Surface Properties Temperature Mirenda, M. Levi, V. Bossi, M.L. Bruno, L. Bordoni, A.V. Regazzoni, A.E. Wolosiuk, A. Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles
topic_facet	Doped silica Fluorescence quenching Fluorescent nanoparticles Luminescent temperature nanosensors Tris(bipyridine)ruthenium(II) Advanced applications Bipyridines Fluorescence measurements Fluorescence quenching Fluorescent nanoparticles Microenvironments Photophysical properties Scanning confocal microscopy Silica nanoparticles Steady-state emissions Temperature imaging Temperature response Thermal process Confocal microscopy Fluorescence Nanoparticles Quenching Silica Ruthenium anion nanoparticle oxygen ruthenium silicon dioxide article confocal microscopy fluorescence analysis luminescence microenvironment particle size pH priority journal scanning confocal microscopy sensitivity analysis steady state temperature dependence thermal analysis 2,2'-Dipyridyl Luminescence Molecular Structure Nanoparticles Particle Size Silicon Dioxide Surface Properties Temperature
description	Nanoparticle-based temperature imaging is an emerging field of advanced applications. Herein, the sensitivity of the phosphorescence of tris(bipyridine)ruthenium(II)-doped silica nanoparticles towards temperature is studied. 130nm size particles were prepared by a modification of Stöber's method, that allows the incorporation of Ru[(bpy)3]2+ into the outer particle shell. The entrapped Ru[(bpy)3]2+ retains its photophysical properties, yet the emission of the particles is not affected by the presence of O2, neither by anionic quenchers; quenching by MV2+, on the other hand, is strongly dependent on pH. Between 20 and 60°C, the steady-state emission of the particles decreases linearly with increasing temperature. The slope of the straight line diminishes slightly on thermal cycling, but soon stabilizes. Fluorescence measurements by scanning confocal microscopy indicate that the silica nanoparticles doped with Ru[(bpy)3]2+ can indeed be employed to probe thermal processes in micro-environments. © 2012 Elsevier Inc.
format	JOUR
author	Mirenda, M. Levi, V. Bossi, M.L. Bruno, L. Bordoni, A.V. Regazzoni, A.E. Wolosiuk, A.
author_facet	Mirenda, M. Levi, V. Bossi, M.L. Bruno, L. Bordoni, A.V. Regazzoni, A.E. Wolosiuk, A.
author_sort	Mirenda, M.
title	Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles
title_short	Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles
title_full	Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles
title_fullStr	Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles
title_full_unstemmed	Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles
title_sort	temperature response of luminescent tris(bipyridine)ruthenium(ii)-doped silica nanoparticles
url	http://hdl.handle.net/20.500.12110/paper_00219797_v392_n1_p96_Mirenda
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Temperature response of luminescent tris(bipyridine)ruthenium(II)-doped silica nanoparticles

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