GODIN, Antoine; SETARO, Antonio; GANDIL, Morgane; HAAG, Rainer; ADELI, Mohsen; REICH, Stephanie; COGNET, Laurent

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GODIN, Antoine
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
Centre de recherche de l’Institut universitaire en santé mentale de Québec [Canada] [CERVO]

SETARO, Antonio
Institut für Experimentalphysik

GANDIL, Morgane
Laboratoire Photonique, Numérique et Nanosciences [LP2N]

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Science Advances. 2019-09-27, vol. 5, n° 9, p. eaax1166

American Association for the Advancement of Science (AAAS)

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The design of single-molecule photoswitchable emitters was the first milestone toward the advent of single-molecule localization microscopy that sets a new paradigm in the field of optical imaging. Several photoswitchable emitters have been developed but they all fluoresce in the visible or far-red ranges, missing the desirable near-infrared window where biological tissues are most transparent. Moreover, photocontrol of individual emitters in the near-infrared would be highly desirable for elementary optical molecular switches or information storage elements since most communication data transfer protocols are established in this spectral range. Here we introduce a novel type of hybrid nanomaterials consisting of single-wall carbon nanotubes covalently functionalized with photo-switching molecules that are used to control the intrinsic luminescence of the single nanotubes in the near-infrared (beyond 1 µm). We provide proof-of-concept of localization microscopy based on these bright photoswitchable near-infrared emitters.< Réduire

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Photoswitchable Single-Walled Carbon Nanotubes for Super-Resolution Microscopy in the Near-Infrared

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