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, Richard Hoogenboom
TL;DR
Researchers developed water-dispersible X-ray scintillators that can be blended with polymers for flexible and multifunctional applications like imaging and encryption.
Contribution
A new water-dispersible X-ray scintillator material based on Tb3+-doped Na5Lu9F32 anchored on halloysite nanotubes is introduced.
Findings
The material shows high X-ray light yields of 15,800 photons MeV−1 and good water-dispersibility.
It can be used to create composite foam materials with dose-dependent radioluminescence for radiation monitoring.
The scintillator enables information encryption where encrypted data is revealed only under X-ray irradiation.
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…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Luminescence Properties of Advanced Materials · Lanthanide and Transition Metal Complexes