An Efficient and Reversible Singlet Oxygen Quencher for Suppressing Photobleaching of Organic Fluorescent Dyes

IF 3.4 Q2 CHEMISTRY, ANALYTICAL Analysis & sensing Pub Date : 2022-12-08 DOI:10.1002/anse.202200099
Rui Jiang, En-lai Yang, Zhen-zhen Lin, Prof. Xu-dong Wang
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Abstract

Quenching singlet oxygen is the key to improve photostability of fluorescent dyes. We have systematically studied the capability of a new singlet oxygen quencher, DABCOnium (an alkylated derivative of 1,4-diazabicyclo[2.2.2] octane) on removing singlet oxygen. Results showed that DABCOnium can significantly enhancing photostability of fluorescent thin films for more than 4.3 times compared with that without DABCOnium. After 2 hours of continuous irradiation, fluorescent film doped with DABCOnium retained 90 % of its original fluorescence intensity, which paves a new way in designing high performance singlet oxygen quenchers.

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一种抑制有机荧光染料光漂白的高效可逆单态氧猝灭剂
猝灭单线态氧是提高荧光染料光稳定性的关键。我们系统地研究了一种新的单线态氧猝灭剂DABCOnium(1,4-二氮杂双环[2.2.2]辛烷的烷基化衍生物)去除单线态氧的能力。结果表明,DABCOnium能显著提高荧光薄膜的光稳定性4.3以上 与没有DABCOnium的情况相比。2之后 连续照射小时,掺有DABCOnium的荧光膜保留90 % 这为设计高性能单线态氧猝灭剂开辟了一条新的途径。
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