Covalent organic frameworks (COFs), as meticulously designed porous crystalline materials, have garnered significant interdisciplinary attention. Notably, extensive efforts have been directed towards creating fluorescent COFs by strategically integrating fluorophores, optimized conjugated structures, and exploring diverse topologies, utilizing luminescent mechanisms like aggregation-induced emission and intramolecular charge transfer. With stable covalent linkages, large specific surface areas, and abundant active sites, fluorescent COFs stand out as excellent candidates for sensing application. This review presents a thorough overview of chemical and biosensors based on fluorescent COFs, categorized by analytes, with a focus on recent advancements in sensing principles and performance. The review concludes by outlining challenges and opportunities in this field, aiming to guide material design for sensing applications and stimulate exploration into novel analyte implementations.

中文翻译：

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荧光共价有机框架传感应用的见解

共价有机框架（COF）作为精心设计的多孔晶体材料，已经引起了跨学科的广泛关注。值得注意的是，人们通过战略性地整合荧光团、优化共轭结构、探索不同的拓扑结构、利用聚集诱导发射和分子内电荷转移等发光机制，致力于创建荧光COF。荧光COF具有稳定的共价键、大的比表面积和丰富的活性位点，是传感应用的优秀候选者。本综述对基于荧光 COF 的化学和生物传感器进行了全面概述，按分析物分类，重点关注传感原理和性能方面的最新进展。该评论最后概述了该领域的挑战和机遇，旨在指导传感应用的材料设计并刺激对新型分析物实施的探索。