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Confinement of Dyes inside Boron Nitride Nanotubes: Photostable and Shifted Fluorescence down to the Near Infrared

hal.structure.identifierÉcole Polytechnique de Montréal [EPM]
dc.contributor.authorALLARD, Charlotte
hal.structure.identifierUniversité de Montréal [UdeM]
dc.contributor.authorSCHUÉ, Léonard
hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
hal.structure.identifierLEM, UMR 104, CNRS-ONERA, Université Paris Saclay [Laboratoire d'étude des microstructures]
dc.contributor.authorFOSSARD, Frédéric
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorRECHER, Gaëlle
hal.structure.identifierUniversité de Montréal [UdeM]
dc.contributor.authorNASCIMENTO, Rafaella
hal.structure.identifierCentre interuniversitaire de recherche et d'ingénierie des matériaux [CIRIMAT]
dc.contributor.authorFLAHAUT, Emmanuel
hal.structure.identifierLEM, UMR 104, CNRS-ONERA, Université Paris Saclay [Laboratoire d'étude des microstructures]
hal.structure.identifierDMAS, ONERA, Université Paris Saclay [Châtillon]
dc.contributor.authorLOISEAU, Annick
hal.structure.identifierÉcole Polytechnique de Montréal [EPM]
dc.contributor.authorDESJARDINS, Patrick
hal.structure.identifierUniversité de Montréal [UdeM]
dc.contributor.authorMARTEL, Richard
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
hal.structure.identifierLEM, UMR 104, CNRS-ONERA, Université Paris Saclay [Laboratoire d'étude des microstructures]
dc.contributor.authorGAUFRÈS, Etienne
dc.date2020
dc.date.accessioned2023-05-12T10:41:23Z
dc.date.available2023-05-12T10:41:23Z
dc.date.issued2020
dc.identifier.issn0935-9648
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181616
dc.description.abstractEnFluorescence is ubiquitous in life science and used in many fields of research ranging from ecology to medicine. Among the most common fluorogenic compounds, dyes are being exploited in bioimaging for their outstanding optical properties from UV down to the near IR (NIR). However, dye molecules are often toxic to living organisms and photodegradable, which limits the time window for in vivo experiments. Here, it is demonstrated that organic dye molecules are passivated and photostable when they are encapsulated inside a boron nitride nanotube (dyes@BNNT). The results show that the BNNTs drive an aggregation of the encapsulated dyes, which induces a redshifted fluorescence from visible to NIR‐II. The fluorescence remains strong and stable, exempt of bleaching and blinking, over a time scale longer than that of free dyes by more than 104. This passivation also reduces the toxicity of the dyes and induces exceptional chemical robustness, even in harsh conditions. These properties are highlighted in bioimaging where the dyes@BNNT nanohybrids are used as fluorescent nanoprobes for in vivo monitoring of Daphnia Pulex microorganisms and for diffusion tracking on human hepatoblastoma cells with two‐photon imaging.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.enBio‐imaging
dc.subject.enNanotube heterostructure
dc.subject.enNIR‐II fluorescence
dc.subject.enMolecular aggregation
dc.subject.enPhotostable fluorescence
dc.title.enConfinement of Dyes inside Boron Nitride Nanotubes: Photostable and Shifted Fluorescence down to the Near Infrared
dc.typeArticle de revue
dc.identifier.doi10.1002/adma.202001429
dc.subject.halSciences de l'ingénieur [physics]/Matériaux
bordeaux.journalAdvanced Materials
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-02877816
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02877816v1
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