Based on the encapsulation of copper nanoclusters (CuNCs) mixed with Al³⁺ into a zeolitic imidazole framework-90 (ZIF-90) to form CuNCs-Al³⁺/ZIF-90 composites, a novel, simple and sensitive fluorescent sensor was developed to detect adenosine triphosphate (ATP) and then evaluate the freshness of aquatic products by determining the changes in the level of ATP. Encapsulated CuNCs could be released from the ZIF-90 after their addition to ATP, resulting in the fluorescence quenching of this system. Based on this phenomenon, the sensitive detection of ATP was realized with a detection limit of 0.67 μM, and a good linear relationship was observed between the fluorescence quenching ratios of the CuNCs-Al³⁺/ZIF-90 composites and ATP in the concentration range from 1 to 2000 μM. Moreover, satisfactory results were obtained when the proposed ATP detection method was applied to real samples to evaluate the freshness of aquatic products.

基于将与Al ³⁺混合的铜纳米团簇（CuNCs）封装到沸石咪唑骨架90（ZIF-90）中以形成CuNCs-Al ³⁺ / ZIF-90复合材料，开发了一种新颖，简单且灵敏的荧光传感器检测三磷酸腺苷（ATP），然后通过确定ATP含量的变化来评估水产品的新鲜度。封装的CuNC加入ATP后可以从ZIF-90中释放出来，从而导致该系统的荧光猝灭。基于此现象，实现了ATP的灵敏检测，检测限为0.67μM，并且在CuNCs-Al ³⁺的荧光猝灭比之间观察到良好的线性关系。/ ZIF-90复合材料和ATP的浓度范围为1至2000μM。此外，将拟议的ATP检测方法应用于实际样品以评估水产品的新鲜度时，可以获得令人满意的结果。