Yttrium-mediated red fluorescent carbon dots for sensitive and selective detection of calcium ions,Luminescence

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Yttrium-mediated red fluorescent carbon dots for sensitive and selective detection of calcium ions
Luminescence ( IF 3.2 ) Pub Date : 2021-08-09 , DOI: 10.1002/bio.4132
Yan Zhang _{1,

2} , Li Li _{2,

3} , Juan Yue ₂ , Lei Cao ₂ , Pai Liu ₂ , Wen-Fei Dong _{2,

3} , Guixia Liu ₁

Affiliation

As the second messenger in cells, calcium ions are indispensable in various physiological activities of the body. In this work, a special red fluorescent carbon dot was designed and synthesized using the secondary hydrothermal method with yttrium, p-phenylenediamine, and ethylene glycol tetraacetic acid as precursors for the detection of calcium ions. The designed carbon dot exhibited bright red fluorescence, and the fluorescence emission wavelength showed good photostability. When the calcium ion concentration was controlled from 0 to 400 μM, the carbon dot tended to respond to fluorescence quenching. At the same time, a test paper experiment was carried out, which proved the potential application of the nano-sensor in detecting calcium ions.

中文翻译：

用于灵敏和选择性检测钙离子的钇介导的红色荧光碳点

钙离子作为细胞中的第二信使，在机体的各种生理活动中必不可少。在这项工作中，以钇、对苯二胺和乙二醇四乙酸为前驱体，采用二次水热法设计并合成了一种特殊的红色荧光碳点，用于检测钙离子。设计的碳点呈现亮红色荧光，荧光发射波长表现出良好的光稳定性。当钙离子浓度控制在 0~400 μM 时，碳点倾向于响应荧光猝灭。同时进行了试纸实验，证明了纳米传感器在钙离子检测中的潜在应用。

更新日期：2021-08-09

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