Journal
APPLIED SPECTROSCOPY REVIEWS
Volume 56, Issue 4, Pages 324-345Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/05704928.2020.1793770
Keywords
Ratiometric; fluorescence; phosphorescence; electrochemiluminescence; cataluminescence; sensor
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Funding
- National Natural Science Foundation of China [21675113, 21874094]
- fundamental research funds for the central university [2018SCUH0078]
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Ratiometric luminescent sensors are of great interest for providing precise quantitative and qualitative analysis. Dual emissions can be achieved through fluorescence resonance energy transfer or intramolecular charge transfer. Recent progress shows that ratiometric luminescent method can be used for selectively quantifying and qualitatively recognizing different substances.
Ratiometric luminescent sensors have been of considerable interest to the chemo/biosensor with the ability of providing a precisely quantitative and qualitative analysis. The main strategies for generating dual emissions from single-fluorophore and double-fluorophore are summarized and categorized in detail. Typically, dual emission can be obtained either with fluorescence resonance energy transfer or intramolecular charge transfer. The discovery of aggregation induced emission offers new opportunities for ratiometric sensing. Ratiometric phosphorescence and chemiluminescence analysis are also promising for sensing. The recent progress for applications of ratiometric luminescent method is addressed and summarized here, which shows that ratiometric luminescent method can be used not only to selectively quantify one substance, but also to qualitatively recognize different substances.
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