Water-dispersible X-ray scintillators enabling coating and blending with polymer materials for multiple applications

Hailei Zhang (), Bo Zhang, Chongyang Cai, Kaiming Zhang, Yu Wang, Yuan Wang, Yanmin Yang (), Yonggang Wu, Xinwu Ba and Richard Hoogenboom ()
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Hailei Zhang: Hebei University, 180 Wusi Road
Bo Zhang: Hebei University, 180 Wusi Road
Chongyang Cai: Hebei University, 180 Wusi Road
Kaiming Zhang: Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan
Yu Wang: Hebei University, 180 Wusi Road
Yuan Wang: Hebei University, 180 Wusi Road
Yanmin Yang: Hebei University, 180 Wusi Road
Yonggang Wu: Hebei University, 180 Wusi Road
Xinwu Ba: Hebei University, 180 Wusi Road
Richard Hoogenboom: Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Developing X-ray scintillators that are water-dispersible, compatible with polymeric matrices, and processable to flexible substrates is an important challenge. Herein, Tb3+-doped Na5Lu9F32 is introduced as an X-ray scintillating material with steady-state X-ray light yields of 15,800 photons MeV−1, which is generated as nanocrystals on halloysite nanotubes. The obtained product exhibits good water-dispersibility and highly sensitive luminescence to X-rays. It is deposited onto a polyurethane foam to afford a composite foam material with dose-dependent radioluminescence. Moreover, the product is dispersed into polymer matrixes in aqueous solution to prepare rigid or flexible scintillator screen for X-ray imaging. As a third example, it is incorporated multilayer hydrogels for information camouflage and multilevel encryption. Encrypted information can be recognized only by X-ray irradiation, while the false information is read out under UV light. Altogether, we demonstrate that the water-dispersible scintillators are highly promising for aqueous processing of radioluminescent, X-ray imaging, and information encrypting materials.

Date: 2024
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DOI: 10.1038/s41467-024-46287-8

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