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基于利诺的两个新的光探针用于连续识别Al Al

Cheng-Lu Zhang¹, Chang Liu¹, Shi-Ru Nie¹

¹School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian, 116029, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|June 3, 2023

概括

两个新的光探测器DQNS和DQNS1被开发用于检测离子 (Al3+) 和低化物 (ClO-). 对于这些分析物,DQNS表现出卓越的性能,具有高灵敏度,选择性和快速反应时间.

科学领域:

* 化学传感器的使用
* 光探测器光探测器
* 分析化学分析化学

背景情况:

* 希夫基化学是一种合成功能分子的经典方法.
*Dis-quinolinone单元为开发新型化学传感器提供了一个多功能支架.
*有效检测离子 (Al3+) 和低化物 (ClO-) 在环境和生物监测中至关重要.

研究的目的:

* 设计和合成基于希夫基化学和dis-quinolinone核心的新型光探针 (DQNS,DQNS1).
* 评估探针在检测Al3+和ClO-的高灵敏度和选择性方面的有效性.
* 调查传感机制,并探索在现实世界样本和生物成像中的潜在应用.

主要方法:

*通过希夫基冷凝反应合成DQNS和DQNS1.
*光谱表征 (UV-Vis吸收,光发射) 用于评估光学特性.
*光定位实验以确定Al3+和ClO-.的检测极限,选择性和响应时间.
*核磁共振 (NMR) 定位和工作曲线分析以阐明传感机制 (光诱导电子转移 - PET,分子内电荷转移 - ICT).

主要成果:

*DQNS表现出卓越的光学性能,包括一个大的Stokes转移 (132nm).
* DQNS在检测Al3+ (检测极限29.8nM) 和ClO- (检测极限25nM) 中表现出高灵敏度和选择性.
*观察到快速反应时间:Al3+10分钟,ClO-.10秒.
* 通过实验证据证实了涉及PET和ICT的传感机制.
* 探测器显示了连续检测的潜力,并成功地应用于真实水样和活细胞成像.

结论:

*新型基于dis-quinolinone的希夫基光探针 (DQNS,DQNS1) 已成功合成和表征.
*DQNS是Al3+和ClO-的高效和选择性的光传感器,在检测极限和响应时间方面具有优势.
* 开发的探头由于其性能和适用于真实样本的可用性,在环境监测和生物成像方面具有有前途的应用.

关键词:

(3+) 是一种 O ((−) 的时间.连续性认可连续性认可光探测器探测器可以发光.奇诺林氨酸 (quinolinone) 是一种氨酸.

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