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超敏感的近红外光探针用于精确检测化物及其在生物成像中的应用

Xiaoxing Feng¹, Hui Ma², Deli Li¹

¹Institute for Smart Materials and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|October 29, 2025

概括

一个新的近红外光探测器使得高选择性和实时检测离子. 这一进步为监测生物系统 (如活细胞) 中的化物动态提供了一种简单,快速的方法.

科学领域:

化学传感器是一种化学传感器.
光探测器发展发展
生物医学成像学生物医学成像学

背景情况:

离子在生物和工业过程中至关重要,但在高度下是有害的.
现有的化物检测方法缺乏实时监测,需要复杂的设备.
光探针提供了一个简单,快速和非侵入性的检测替代方案,适合活细胞成像.

研究的目的:

开发一种高度选择性的近红外 (NIR) 光探针,用于化物检测.
为了研究探测器的机制,基于silyl-ether-gated分子内电荷转移 (ICT).
为了证明探测器对活细胞中化物动态的高对比成像的实用性.

主要方法:

从二甲基甲-4H-二烯架构中设计一个NIR光探针.
采用化物检测的silyl-ether-gatedICT机制进行检测.
执行密度函数理论 (DFT) 计算,以了解ICT机制.

主要成果:

探测器对化物具有很高的选择性,检测极限较低 (11.3 nM).
它对来自生物矩阵的干扰有很强的抵抗力.
在HeLa细胞中实现了化物动态的高对比成像.
观察到205nm的大型斯托克斯转移和在化物检测时恢复的ICT.

结论:

开发的NIR光探测器是选择性化物监测的强大工具.
探测器的机制,涉及硬体阻碍控制的ICT,为ICT过程提供了更深入的见解.
这种探测器为生物和环境监测中的应用提供了卓越的光学性能.

关键词:

生物成像是一种生物成像.光探测器探测器可以发光.化物离子是一种化物离子.在NIR中,NIR是NIR.固体阻碍物固体阻碍物

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