Near-infrared/visible-emitting nanosilica modified with silylated Ru(II) and Ln(III) complexes

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUPS-
Autor(es): dc.contributorUniversidade de Saõ Paulo-
Autor(es): dc.creatorSábio, Rafael Miguel [UNESP]-
Autor(es): dc.creatorSantagneli, Silvia Helena [UNESP]-
Autor(es): dc.creatorGressier, Marie-
Autor(es): dc.creatorCaiut, José Maurício Almeida-
Autor(es): dc.creatorPazin, Wallance Moreira-
Autor(es): dc.creatorRibeiro, Sidney José Lima [UNESP]-
Autor(es): dc.creatorMenu, Marie-Joëlle-
Data de aceite: dc.date.accessioned2022-02-22T00:33:01Z-
Data de disponibilização: dc.date.available2022-02-22T00:33:01Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1088/1361-6528/ab494f-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201245-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201245-
Descrição: dc.descriptionThree luminescent silica-based nanohybrids were fabricated by grafting of silylated Ru(II) and Nd/Yb(III) complexes onto mesoporous silica nanoparticles obtained by microemulsion method. The prepared nanohybrids were characterized by Fourier transform-Raman spectroscopy, solid state-nuclear magnetic resonance, high resolution-transmission electron microscopy and scanning and transmission electron microscopy techniques. The chemical integrity and the grafting of all complexes inside MSNs nanopores as well as a good distribution of metal complexes onto MSNs surface were achieved for all nanohybrids. Photophysical results revealed that by monitoring the excitation on Ru(II) moieties from SiO 2-RuNd and SiO 2-RuYb nanohybrids, the sensitization of NIR-emitting Nd/Yb(III) ions were successfully detected via energy transfer processes. Energy transfer rates (k EnT) of 0.20 × 107 and 0.11 × 107 s-1 and efficiencies of energy transfer (η EnT) of 40% and 27.5% were obtained for SiO 2-RuNd and SiO 2-RuYb nanohybrids, respectively. These results confirm the preparation of promising dual (near-infrared/visible)-emitting silica-based nanohybrids as new nanotools for applications as nanosensores and nanomarkers.-
Descrição: dc.descriptionInstitute of Chemistry Saõ Paulo State University UNESP-
Descrição: dc.descriptionCIRIMAT Université de Toulouse CNRS INPT UPS, 118 route de Narbonne-
Descrição: dc.descriptionDepartamento de Química Faculdade de Filosofia Ciências e Letras de Ribeiraõ Preto Universidade de Saõ Paulo-
Descrição: dc.descriptionDepartamento de Física Faculdade de Filosofia Ciências e Letras de Ribeiraõ Preto Universidade de Saõ Paulo-
Descrição: dc.descriptionInstitute of Chemistry Saõ Paulo State University UNESP-
Idioma: dc.languageen-
Relação: dc.relationNanotechnology-
???dc.source???: dc.sourceScopus-
Título: dc.titleNear-infrared/visible-emitting nanosilica modified with silylated Ru(II) and Ln(III) complexes-
Tipo de arquivo: dc.typelivro digital-
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