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Cheng-Lu Zhang¹, Chang Liu¹, Yan-Wei Ding¹

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

Analytical biochemistry

|July 22, 2023

概括

一种新型的光探测器,NapSe,能够快速和灵敏地检测硫化 (H2S),具有显著的"启动"光反应. 这种探测器在测试纸和细胞成像中显示出应用的希望.

科学领域:

化学生物学化学生物学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

硫化 (H2S) 是一种具有不同生物作用的关键信号分子.
开发用于H2S检测的选择性和敏感探针对于生物和医学研究至关重要.
现有的H2S探测器往往缺乏足够的灵敏度,快速响应或稳定性.

研究的目的:

设计和合成一种新的光探针 (NapSe),用于特定检测H2S.
为了研究NapSe探针的光学特性和传感性能.
评估NapSe在生物样本和成像中检测H2S的适用性.

主要方法:

一种新型光探针 (NapSe) 的合成,其中包括纳夫胺光体和乙烯连接.
探测器光学属性的表征,包括斯托克斯转移和pH稳定性.
评估探测器的选择性,灵敏度和响应时间,以检测H2S.
在测试纸上检测H2S的探针的应用和MCF-7乳腺癌细胞的光成像.

主要成果:

纳普具有近矩形结构,具有超大的斯托克斯转移 (190 nm) 和良好的pH稳定性.
探测器显示出对H2S的高度选择性的"启动"光反应,强度增加了42倍,并且具有强大的抗干扰性.
NapSe显示出快速响应时间 (3分钟) 和高灵敏度,低检测极限 (LOD) 为5.4μM.
在测试纸上成功应用NapSe用于H2S检测以及在MCF-7细胞中光成像外源和内源H2S.

结论:

与现有方法相比,新的NapSe探头在H2S检测方面提供了卓越的性能.
NapSe的优良光学特性,灵敏度和快速响应使其成为生物研究中的一个有价值的工具.
探测器在细胞成像中的成功应用凸显了其在体内H2S监测中的潜力.

关键词:

光探测器探测器可以发光.硫化是一种硫化.纳夫塔利胺胺是什么意思乙烯结合乙烯的债券.

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