Abstract
AbstractCysteine (Cys) is an amino acid found in the body that exerts a good antioxidant effect. Sensitive detection of Cys has far‐reaching significance both in the cosmetics industry and biochemical reports. This paper showed that Fe‐MIL‐88NH2. Fe‐MIL‐88NH2 particles were prepared using solvothermal synthesis and their structure was determined using powder X‐ray diffraction, FT‐IR, electron microscopy, as well as N2 adsorption‐desorption measurements. Because of the large channels present in the frame, Fe‐MIL‐88NH2 quickly removed hazardous cationic dyes from water within several minutes. Luminescence tests showed Fe‐MIL‐88NH2 selected Cys featuring great sensitivity in the water, with a detection limit of 5.33 μM. A CCK8 experiment found that Fe‐MIL‐88NH2 had low cytotoxicity. Additionally, the constructed fluorescent platform was used as one signaling tool in monitoring Cys for detecting exo/endogenous Cys in A549 cells.
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