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doi:10.22028/D291-29602
Title: | Shortwave Infrared in Vivo Imaging with Gold Nanoclusters |
Author(s): | Chen, Yue Montana, Daniel M. Wei, He Cordero, Jose M. Schneider, Marc Le Guével, Xavier Chen, Ou Bruns, Oliver T. Bawendi, Moungi G. |
Language: | English |
Title: | Nano Letters |
Volume: | 17 |
Issue: | 10 |
Startpage: | 6330 |
Endpage: | 6334 |
Publisher/Platform: | American Chemical Society (ACS) |
Year of Publication: | 2017 |
Publikation type: | Journal Article |
Abstract: | 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 λem = 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. |
DOI of the first publication: | 10.1021/acs.nanolett.7b03070 |
Link to this record: | hdl:20.500.11880/27987 http://dx.doi.org/10.22028/D291-29602 |
ISSN: | 1530-6992 1530-6984 |
Date of registration: | 1-Oct-2019 |
Faculty: | NT - Naturwissenschaftlich- Technische Fakultät |
Department: | NT - Pharmazie |
Professorship: | NT - Prof. Dr. Marc Schneider |
Collections: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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