Photoswitchable single-walled carbon nanotubes for super-resolution microscopy in the near-infrared.

TitlePhotoswitchable single-walled carbon nanotubes for super-resolution microscopy in the near-infrared.
Publication TypeJournal Article
Year of Publication2019
AuthorsGodin, AG, Setaro, A, Gandil, M, Haag, R, Adeli, M, Reich, S, Cognet, L
JournalSci Adv
Date Published2019 09

The design of single-molecule photoswitchable emitters was the first milestone toward the advent of single-molecule localization microscopy, setting 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 type of hybrid nanomaterials consisting of single-wall carbon nanotubes covalently functionalized with photoswitching molecules that are used to control the intrinsic luminescence of the single nanotubes in the near-infrared (beyond 1 μm). Through the control of photoswitching, we demonstrate super-localization imaging of nanotubes unresolved by diffraction-limited microscopy.

Alternate JournalSci Adv
PubMed ID31799400
PubMed Central IDPMC6868679