Tailoring the SWIR emission of gold nanoclusters by surface ligand rigidification and their application in 3D bioimaging

Xavier Le Guével; K. David Wegner; Christian Würth; Vladimir A. Baulin; B. Musnier; V. Josserand; U. Resch-Genger; Jean-luc Coll

doi:10.1039/D1CC07055J

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Tailoring the SWIR emission of gold nanoclusters by surface ligand rigidification and their application in 3D bioimaging†

Xavier Le Guével,

‡*^a K. David Wegner,

‡^b Christian Würth,

^b Vladimir A. Baulin,

^c B. Musnier,^a V. Josserand,^a U. Resch-Genger

^b and Jean-luc Coll

Author affiliations

* Corresponding authors

^a Institue for Advanced Biosciences, University Grenoble Alpes, CNRS UMR5309, INSSERM U1209, Allée des Alpes 38700, La Tronche, France
E-mail: xavier.le-guevel@univ-grenoble-alpes.fr

^b Federal Institute of Materials Research and Testing (BAM), 12489 Berlin, Germany

^c Departament Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel.lí, Domingo s/n, 43007 Tarragona, Spain

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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DOI: https://doi.org/10.1039/D1CC07055J
Article type: Communication
Submitted: 15 Dec 2021
Accepted: 04 Feb 2022
First published: 04 Feb 2022
This article is Open Access

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Chem. Commun., 2022,58, 2967-2970

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Tailoring the SWIR emission of gold nanoclusters by surface ligand rigidification and their application in 3D bioimaging

X. Le Guével, K. D. Wegner, C. Würth, V. A. Baulin, B. Musnier, V. Josserand, U. Resch-Genger and J. Coll, Chem. Commun., 2022, 58, 2967 DOI: 10.1039/D1CC07055J

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Chemical Communications

Tailoring the SWIR emission of gold nanoclusters by surface ligand rigidification and their application in 3D bioimaging†

Abstract

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Tailoring the SWIR emission of gold nanoclusters by surface ligand rigidification and their application in 3D bioimaging

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