Yuan Zixuan, Zhang Yu, Dong Jiaqi, Wang Ruiyu, Wang Jinping, Du Yan, Xing Zhiyong
College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China.
College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2026 Jan 15;345:126826. doi: 10.1016/j.saa.2025.126826. Epub 2025 Aug 14.
In this study, a rapid and sensitive fluorescence sensor SFBEJ for detecting HSO was constructed through merging the quinolimide-thiophene scaffold with the methylenemalononitrile moiety. SFBEJ showed the enhanced fluorescence response to HSO, accompanying with fluorescence colors changing from yellow to yellow-green. SFBEJ presented the advantages with rapid response (within 2 min) and high sensitivity (Φ = 0.57). The reaction mechanism of SFBEJ with HSO was confirmed by H NMR, HRMS, and theoretical calculations. Importantly, SFBEJ could be employed for RGB analysis in both solutions and test trips under 365 nm UV irradiation, fulfilling the portable and intuitive detection of HSO. In addition, SFBEJ had been utilized successfully to determine HSO in water, foods, traditional Chinese medicines, and living cells.
在本研究中，通过将喹啉亚胺-噻吩支架与亚甲基丙二腈部分相结合，构建了一种用于检测HSO的快速灵敏荧光传感器SFBEJ。SFBEJ对HSO表现出增强的荧光响应，同时荧光颜色从黄色变为黄绿色。SFBEJ具有响应迅速（2分钟内）和灵敏度高（Φ = 0.57）的优点。通过核磁共振氢谱（¹H NMR）、高分辨质谱（HRMS）和理论计算证实了SFBEJ与HSO的反应机理。重要的是，在365 nm紫外光照射下，SFBEJ可用于溶液和试纸条中的RGB分析，实现对HSO的便携式直观检测。此外，SFBEJ已成功用于测定水、食品、中药和活细胞中的HSO。
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