Smart lanthanide antennas for sensing water

Abstract

8-Methoxy-4,5-dihydrocyclopenta[de]quinolin-2(1H)-one and quinolin-2(1H)-one phosphonate and carboxylate derivatives are selective antennas exhibiting Eu3+ and Tb3+ luminescence, and highly sensitive water sensors.

Theoretical Modeling (Sparkle RM1 and PM7) and Crystal Structures of the Luminescent Dinuclear Sm(III) and Eu(III) Complexes of 6,6,7,7,8,8,8- Heptafluoro-2,2-dimethyl-3,5-octanedione and 2,3-Bis(2-pyridyl)pyrazine: Determination of Individual Spectroscopic Parameters for Two Unique Eu3+ Sites

“…The luminescence of lanthanides being unique in its own nature has made them applicable as lasers, 1 sensors, 2 , 3 luminescent materials, 4 − 8 luminescence based tools for the investigation of cellular environments, 9 and solar energy conversion devices. 10 , 11 The lanthanide emission bands are very sharp and exhibit long emission decay times.…”

“…The luminescence of lanthanides being unique in its own nature has made them applicable as lasers, sensors, , luminescent materials, − luminescence based tools for the investigation of cellular environments, and solar energy conversion devices. , The lanthanide emission bands are very sharp and exhibit long emission decay times . The direct optical excitation of lanthanide metal ions results in poor emission quantum yields due to lower absorptivity coefficients in the UV–Visible spectrum.…”

Recent Advances in Developing Lanthanide Metal–Organic Frameworks for Ratiometric Fluorescent Sensing

“…Moreover, the boric acid exhibits a strong affinity to fluoride ions, while its interaction with other anions is relatively weak, making it perfect for fluoride selective sensing. Reports on enhancing antenna effect resulted in "turn-on" sensing are rather few comparing to the "turn-off" mechanism discussed above (Karmakar et al, 2019;Fueyo-González et al, 2020;Min et al, 2020;Wang et al, 2020;Yue et al, 2020). However, it is obvious that "turn-on" sensors have advantages over the "turn-off" sensors, especially in the quantitative determination of an analyte in low concentration (Luo et al, 2020).…”

“…Reports on enhancing antenna effect resulted in “turn-on” sensing are rather few comparing to the “turn-off” mechanism discussed above ( Karmakar et al, 2019 ; Fueyo-González et al, 2020 ; Min et al, 2020 ; Wang et al, 2020 ; Yue et al, 2020 ). However, it is obvious that “turn-on” sensors have advantages over the “turn-off” sensors, especially in the quantitative determination of an analyte in low concentration ( Luo et al, 2020 ).…”

Self-Assembled Lanthanide Antenna Glutathione Sensor for the Study of Immune Cells

“…In this field, we have recently reported the discovery of the small and simple structure lanthanide antenna in organic solvents 1a ( Scheme 1 ). 38 The lanthanide sensitization by 1a is quenched by H 2 O addition, setting the basis for its demonstrated application as a H 2 O sensor. In our screening for potential lanthanide antennas, we observed that the free acid 1b ( 39 ) ( Scheme 1 ) was also able to sensitize the emission of Tb 3+ and more extensively Eu 3+ in H 2 O.…”