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Inorganic nanocrystal-dynamic porous polymer assemblies with effective energy transfer for sensitive diagnosis of urine copper
Chemical Science ( IF 7.6 ) Pub Date : 2020-09-23 , DOI: 10.1039/d0sc04359a
Xujiao Ma 1, 2, 3, 4 , Yajie Yang 1, 2, 3, 4 , Rongchen Ma 1, 2, 3, 4 , Yunfeng Zhang 1, 2, 3, 4 , Xiaoqin Zou 1, 2, 3, 4 , Shoujun Zhu 4, 5, 6, 7, 8 , Xin Ge 7, 9, 10, 11, 12 , Ye Yuan 1, 2, 3, 4 , Wei Zhang 7, 9, 10, 11, 12 , Guangshan Zhu 1, 2, 3, 4
Affiliation  

Despite the remarkable mechanical/optical/electrical properties, the inorganic particles and dynamic polymer assemblies encountered the difficulties in compatibility with structural order and complexity. Here, covalent organic frameworks (COFs) constructed through reversible coupling reactions were exploited as dynamic porous polymers to prepare the inorganic nanocrystal-polymer assemblies. Experiencing the in-situ growth process, the carbon quantum dots (CDs) were gradually prepared in the COF cavity with a narrow size distribution (2±0.5 nm). The well-established assemblies achieve effective energy transfer from inorganic to organic part (efficiency > 80%), which thus render a ~130% increase in quantum yield compared with the pristine COF network. Notably, the hybrid material realizes a simple, selective, and sensitive diagnostic tool for urine copper, surpassing the detection limit of COF solid by 150 times. Beyond scientific and fundamental interest, such hybrid assemblies are attractive from technological perspectives as well, for example, in energy storage, electronics, catalysis, and optics.

中文翻译:

具有有效能量转移的无机纳米晶体-动态多孔聚合物组件,用于尿铜的敏感诊断

尽管具有显着的机械/光学/电性能,但无机颗粒和动态聚合物组件在与结构顺序和复杂性相容性方面遇到困难。在这里,通过可逆偶联反应构建的共价有机骨架(COF)被用作动态多孔聚合物,以制备无机纳米晶体-聚合物组件。经历原位生长过程,在COF腔中逐渐制备了具有窄尺寸分布(2±0.5 nm)的碳量子点(CD)。完善的组件实现了从无机部分到有机部分的有效能量转移(效率> 80%),因此与原始COF网络相比,量子产率提高了约130%。值得注意的是,混合材料实现了简单,选择性,灵敏的尿铜诊断工具,超过了COF固体的检测极限150倍。除了科学和根本的兴趣之外,这种混合组件还从技术角度来看具有吸引力,例如在能量存储,电子,催化和光学方面。
更新日期:2020-09-23
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