Citation: Jueqiong Wang, Liwei Cheng, Yang Yang, Dewen He, Yingtong Fan, Zhiwei Li, Junhao Lu, Yumin Wang, Jia Lei, Zhiyong Peng, Aiping Jin, Dan Zhou, Zhizai Li, Shuaihua Wang, Lixi Chen, Yaxing Wang, Yanlong Wang, Shuao Wang. Flexible two-dimensional uranium-organic framework with upgraded radiation resistant for X-ray imaging[J]. Chinese Chemical Letters, ;2026, 37(5): 111614. doi: 10.1016/j.cclet.2025.111614 shu

Flexible two-dimensional uranium-organic framework with upgraded radiation resistant for X-ray imaging

Jueqiong Wang ^{a, 1} ,
Liwei Cheng ^{a, 1} ,
Yang Yang ^a ,
Dewen He ^a ,
Yingtong Fan ^a ,
Zhiwei Li ^a ,
Junhao Lu ^a ,
Yumin Wang ^a ,
Jia Lei ^a ,
Zhiyong Peng ^a ,
Aiping Jin ^c ,
Dan Zhou ^a ,
Zhizai Li ^a ,
Shuaihua Wang ^{b, *,} ,
Lixi Chen ^{a, *,} ,
Yaxing Wang ^a ,
Yanlong Wang ^{a, *,} ,
Shuao Wang ^{a, *,}

a.
State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
b.
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
c.
CNNP Nuclear Power Operations Management Co., Ltd., Haiyan 314303, China

shwang@fjirsm.ac.cn

lxchen@suda.edu.cn

ylwang@suda.edu.cn

shuaowang@suda.edu.cn

Received Date: 13 March 2025
Revised Date: 27 June 2025
Accepted Date: 19 July 2025
Available Online: 20 July 2025

Figures(3)

The intrinsic scintillation property of uranium has recently endowed this heaviest naturally occurring element with new opportunities for X-ray radiation detection and visualization. However, the low radiation stability of most uranium compounds hinders their practical application, particularly in X-ray imaging. Here, we presented a flexible two-dimensional uranium-organic framework (UOF, SCU-334) as an air-stable scintillating material for X-ray detection and, for the first time, a systematic investigation of X-ray imaging in UOFs. Following continuous high dose rate X-ray irradiation exceeding 50 Gy, which equals thousands of chest X-ray diagnoses, SCU-334 retains over 90% of its initial performance, representing a significant improvement over previously reported scintillating UOFs. The upgraded radiation resistance of SCU-334 is attributed to its flexible structure that dissipates energy more efficiently under high-energy particle bombardment through conformation fluctuation and relaxation. This work offers a promising approach to improve the radiation resistance of uranium-based scintillators.
- Uranium,
- Metal-organic framework,
- X-ray excited luminescence,
- X-ray irradiation stability,
- X-ray imaging
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