荧光
化学
三磷酸腺苷
量子点
沸石咪唑盐骨架
碳纤维
光化学
生物物理学
核化学
纳米技术
生物化学
材料科学
金属有机骨架
有机化学
物理
吸附
量子力学
复合数
复合材料
生物
作者
Xin Yue,Dun Zhang,Yan Zeng,Qi Pan
标识
DOI:10.1016/j.ab.2022.115021
摘要
ATP is a high-energy compound that plays a vital role in biological metabolism. Abnormal changes in ATP concentration are related to various diseases and reflect microbial metabolism in biofilms. In this work, we prepared carbon quantum dots (CDs) with aggregation-induced fluorescence inhibition effect using the bacterial culture medium as raw material with a hydrothermal method. Then, an abiotic fluorescent nanoprobe named CDs@zeolitic imidazolate frameworks-90 (ZIF-90) was facilely synthesized by encapsulating CDs into ZIF-90. Owing to the encapsulation of CDs in the hollow structure of ZIF-90, the blue fluorescence emission of CDs@ZIF-90 decreased significantly. In the presence of ATP, the ZIF-90 framework was destroyed due to the strong coordination between ATP and Zn2+. The released CDs exhibited stronger fluorescence intensity, which was closely related to the ATP concentration. The convenient synthesis process and rapid ATP-responsive ability make CDs@ZIF-90 highly promising for clinical and environmental analysis.
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