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Chen, Y.* ; Montana, D.M.* ; Wei, H.* ; Cordero, J.M.* ; Schneider, M.* ; Le Guével, X.* ; Chen, O.* ; Bruns, O.T. ; Bawendi, M.G.*

Shortwave infrared in vivo imaging with gold nanoclusters.

Nano Lett. 17, 6330-6334 (2017)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The use of visible/NIR-emitting gold nanoclusters (Au NCs), previously proposed for in vivo imaging, has been limited to some extent by low quantum yields (QYs) and the limited penetration of visible light in tissue. Here we report short wavelength infrared (SWIR, λ = 1-2 μm) emitting Au NCs with a good photoluminescence QY for this wavelength range (0.6% to 3.8% for λ = 1000 to 900 nm) and excellent stability under physiological conditions. We show that surface ligand chemistry is critical to achieving these properties. We demonstrate the potential of these SWIR-emitting Au NCs for in vivo imaging in mice. The Au NCs have a hydrodynamic diameter that is small (∼5 nm) enough that they exhibit a rapid renal clearance, and images taken in the SWIR region show better resolution of the blood vessels than in the NIR region.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter Gold Nanocluster ; Swir Imaging ; Renal Clearance ; Zwitterionic Ligand
ISSN (print) / ISBN 1530-6984
e-ISSN 1530-6992
Zeitschrift Nano Letters
Quellenangaben Band: 17, Heft: 10, Seiten: 6330-6334 Artikelnummer: , Supplement: ,
Verlag American Chemical Society (ACS)
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Helmholtz Pioneer Campus (HPC)