Fluorescence properties of dienone derivatives and solvent effects on their fluorescence absorption and emission

A convenient route was successfully developed for the synthesis of novel heterocycles such as pyrazolo[3,4-b]pyrrolo[2,3-d]pyridines (PPP) from pyrazolo[3,4-b]pyridines in good yield. The PPP derivatives synthesized were further studied for their photophysical properties, and it was observed that absorption and emission λmax changed, owing to the substituent effect at 4 positions. These compounds were obtained from highly reactive starting materials, 5-aminopyrazoles and α-acetyl γ-butyrolactone.Key words: α-acetyl γ-butyrolactone, pyrazolo[3,4-b]pyrrolo[2,3-d] pyridine, absorption, emission, fluorescence.

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Solvent effects for vertical absorption and emission processes in solution using a self-consistent state specific method based on constrained equilibrium thermodynamics

Physical Chemistry Chemical Physics ◽

10.1039/c8cp00930a ◽

2018 ◽

Vol 20 (19) ◽

pp. 13178-13190 ◽

Cited By ~ 2

Author(s):

Ting-Jun Bi ◽

Long-Kun Xu ◽

Fan Wang ◽

Xiang-Yuan Li

Keyword(s):

Solvent Effects ◽

Specific Method ◽

Equilibrium Thermodynamics ◽

Absorption And Emission ◽

Self Consistent ◽

Constrained Equilibrium

A self-consistent state specific (SS) method in the framework of TDDFT is presented to account for solvent effects on absorption and emission processes for molecules in solution.

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Solvent effects on fluorescence properties of sodium lasalocid (ionophore X-537A)

The Journal of Organic Chemistry ◽

10.1021/jo00181a037 ◽

1984 ◽

Vol 49 (7) ◽

pp. 1293-1295 ◽

Cited By ~ 3

Author(s):

Ashim K. Mitra ◽

Milind M. Narurkar

Keyword(s):

Solvent Effects ◽

Fluorescence Properties

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Measurement of Fluorescence Properties in Light Scattering Medium

ASME/JSME 2011 8th Thermal Engineering Joint Conference ◽

10.1115/ajtec2011-44458 ◽

2011 ◽

Author(s):

Shoji Maruoka ◽

Yohei Mitsui ◽

Shinpei Okawa ◽

Yoko Hoshi ◽

Yukio Yamada

Keyword(s):

Fluorescence Probe ◽

Emission Spectra ◽

Biological Tissues ◽

Fluorescence Properties ◽

Scattering Media ◽

Fluorescent Properties ◽

Time Resolved ◽

Absorption And Emission ◽

Absorption And Emission Spectra ◽

Living Body

The purpose of this study is to measure the fluorescence properties of Indocyaninegreen (ICG) which is a fluorescence dye to be used as a fluorescence probe for the use of fluorescence imaging in biomedical applications. The fluorescence molecular imaging is expected to solve the issues in preclinical studies which require a lot of time, labors and sacrificed animals. Information of living body can be obtained by measuring the fluorescent properties of the probe in biological media. The absorption and emission spectra and the lifetime of ICG in non-scattering and scattering media were measured in this study. ICG was dissolved in water, in plasma, in Intralipid, and in a mixture of plasma and Intralipid to simulate the environment in living tissues. The absorption and emission spectra were measured using a fluorescence spectrophotometer. The fluorescence lifetimes were measured using a time-resolved measurement method. Results suggest that the fluorescent properties are affected by the reaction between ICG and biological tissues.

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