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. 2024 Mar 6;15:2055. doi: 10.1038/s41467-024-46287-8

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 8 — a Gel-0 is prepared in cuboid and exhibits no emission (PVA is abbreviated from polyvinyl alcohol; HNTs is abbreviated from halloysite nanotubes). b Gel-1 is prepared in letter sharp (HBU), which can emit blue luminescence under UV light (365 nm) and green luminescence under X-ray, respectively (HNTs@Na₅Lu₉F₃₂:Tb³⁺ is abbreviated from Tb³⁺-doped Na₅Lu₉F₃₂ anchored halloysite nanotubes; M3 represents boronic acid functionalized tetraphenylethylene). c Gel-2 is prepared in letter sharp (ET) and emit blue luminescence under UV light (365 nm).