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Non-Aqueous Sol-Gel Synthesis of Ultra Small Persistent Luminescence Nanoparticles for Near-Infrared In Vivo Imaging

Abstract : Ultra-small ZnGa2O4:Cr3+ nanoparticles (6 nm) that exhibit near-infrared (NIR) persistent luminescence properties are synthesized by using a non-aqueous sol-gel method assisted by microwave irradiation. The nanoparticles are pegylated, leading to highly stable dispersions under physiological conditions. Preliminary in vivo studies show the high potential for these ultra-small ZnGa2O4:Cr3+ nanoparticles to be used as in vivo optical nanotools as they emit without the need for in situ excitation and, thus, avoid the autofluorescence of tissues.
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https://hal-cnrs.archives-ouvertes.fr/hal-03290588
Contributor : Colette Orange <>
Submitted on : Monday, July 19, 2021 - 1:41:39 PM
Last modification on : Saturday, July 24, 2021 - 3:14:33 AM

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Eliott Teston, Sophie Richard, Thomas Maldiney, Nicole Lievre, Guillaume Yangshu Wang, et al.. Non-Aqueous Sol-Gel Synthesis of Ultra Small Persistent Luminescence Nanoparticles for Near-Infrared In Vivo Imaging. Chemistry - A European Journal, Wiley-VCH Verlag, 2015, 21 (20), pp.7350-7354. ⟨10.1002/chem.201406599⟩. ⟨hal-03290588⟩

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