Aluminium-based metal-organic frameworks for the colorimetric ethephon detection in fruit by paper microsensor

• DOI: 10.1016/j.jsamd.2024.100769
• Publication Date: 2024-07-24T01:19:06Z
• Authors: Zhikun Zhang; Liwei Bai; Tianyi Liu; Huanshu Zhang; Zhengjie Li; Qingju Liu; Jilong Han
• Keywords: Ethephon; Linear range

Ethephon (ETH) is a plant growth regulator extensively utilized in agriculture, but its overuse associated with several health issues. However, detecting ETH sensitively and easily the field challenging due to complexity time-consuming operation of current approaches. In this study, we synthesized aluminum-based metal-organic frameworks (CAU-1) as fluorescent probes for detection fruit. exposure enhanced shifted light green fluorescence CAU-1 blue through high absorption phosphate by electrostatic attraction. We observed linear correlation between intensity concentration ranging from 2 mg/L 400 mg/L, lowest limit at 1 mg/L. This analysis exhibited good selectivity towards ETH. To facilitate easy identification samples field, designed paper-based platform logic gate operation, allowing visual distinction containing applied monitor various fruits, including apples, pears, tomatoes, spectrum, detection. The offered simplicity, speed, ease use sensitivity, providing promising future agriculture.