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Updated: Oct 4, 2025
Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
Published on: March 22, 2020
Tailoring the SWIR emission of gold nanoclusters by surface ligand rigidification and their application in 3D
Xavier Le Guével1, K David Wegner2, Christian Würth2
1Institue for Advanced Biosciences, University Grenoble Alpes, CNRS UMR5309, INSSERM U1209, Allée des Alpes 38700, La Tronche, France. xavier.le-guevel@univ-grenoble-alpes.fr.
Abstract:
The influence of solvent polarity and surface ligand rigidification on the SWIR emission profile of gold nanoclusters with an anistropic surface was investigated. A strong enhancement of the SWIR emission band at 1200 nm was observed when measuring in different local environments: in solution, in polymer composites, and in solids. SWIR in vivo imaging of mice assisted by deep learning after intravenous administration of these gold nanoclusters provides high definition pseudo-3D views of vascular blood vessels.
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