聚合诱导的升级转换超高亮度的发光 兰化物 有机 X射线闪光器
Wen-Kang Jiang1, Wen-Wen Qin1, Ru-Yan Li2
1Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Guangxi Key Laboratory of Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, P. R. China.
Angewandte Chemie (International ed. in English)
|February 5, 2026
概括
聚合诱导的排放发光剂 (AIEgens) 在水溶液中增强了兰化物有机上转换发光 (UCL). 这一突破使得向脂质滴滴成像和低剂量X射线成像应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 纳米技术 纳米技术
背景情况:
- 兰化物有机 (LOC) 对发光应用具有前景.
- 在LOC中的上转换发光 (UCL) 通常在水溶液中较弱.
- 聚合诱导的排放发光剂 (AIEgens) 在聚合时表现出增强的排放.
研究的目的:
- 使用AIEgens.开发一种新的方法来增强LOC中的UCL.
- 为了研究聚合增强的连接体三倍介导的合作性敏感的UCL机制.
- 探索这些增强的LOC在目标成像和X射线检测中的应用.
主要方法:
- 利用AIEgens作为兰坦化物有机合成中的配体.
- 调查非化溶剂和水溶液中的UCL特性.
- 描述AIEgen修改的LOC作为X射线成像的闪器的性能.
主要成果:
- 在水溶液中LOC的UCL强度和量子产量 (高达19.2倍) 中实现了显著的增强 (高达14.3倍).
- 首次在水性介质中证明了分子UCL的精确结构控制.
- 开发了一种具有高光输出率 (20241照片/MeV) 和超低检测极限 (27.2 nGy/s) 的闪仪,用于低剂量X射线成像.
结论:
- 具有AIE专用功能的LOC为增强的UCL提供了一个强大的平台.
- 这种方法使得有针对性的脂质滴滴成像和先进的X射线检测.
- 在高分辨率成像和医疗诊断中为兰化物复杂发射体开辟了新的途径.
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