Recent advances in AIEgens for three-photon fluorescence bioimaging

Chen, Y.

doi:10.1016/j.mtchem.2022.100975

Cited by 7 publications

(4 citation statements)

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“…The behavior of a fluorophore in aquatic environments plays an important role in determining the scope of the application, including such important fields as biology, medicine, and ecology [ 56 , 57 , 58 , 59 , 60 ]. Neutral organic dyes and fluorophores are poorly soluble in water and aqueous media.…”

Section: Resultsmentioning

confidence: 99%

Isoxazolyl-Derived 1,4-Dihydroazolo[5,1-c][1,2,4]Triazines: Synthesis and Photochemical Properties

et al. 2023

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New fluorescent dyes containing an assembled 1,4-dihydroazolo[5,1-c][1,2,4]triazine (DAT) core and an isoxazole ring were synthesized through a reaction between diazopyrazole or diazoimidazoles and isoxazolyl-derived enamines in mild conditions. The photophysical characteristics (maxima absorption and emission, Stokes shifts, fluorescent quantum yields, and fluorescence lifetimes) of the new fluorophores were obtained. The prepared DATs demonstrated emission maxima ranging within 433–487 nm, quantum yields within 6.1–33.3%, and a large Stokes shift. The photophysical characteristics of representative DAT examples were studied in ten different solvents. Specific (hydrogen bonds) and non-specific (dipole–dipole) intermolecular and intramolecular interactions were analyzed using XRD data and spectral experiments. Solvatochromism was analyzed using Lippert–Mataga and Dimroth–Reichardt plots, revealing the relationship between the DAT structure and the nature of solute–solvent interactions. The significant advantages of DATs are the fluorescence of their powders (QY up to 98.7%). DAT-NMe2 10 expressed bright aggregation-induced emission (AIE) behavior in DMSO and THF as the water content increased. The numerous possible variations of the structures of the heterocycles included in the DATs, as well as substituents, create excellent prospects for adjusting their photophysical and physicochemical properties.

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Section: Resultsmentioning

confidence: 99%

Isoxazolyl-Derived 1,4-Dihydroazolo[5,1-c][1,2,4]Triazines: Synthesis and Photochemical Properties

et al. 2023

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“…[6][7][8][9][10][11] Recently, two/multi-photon bioimaging has received much attention and is becoming increasingly important. [12][13][14][15] Compared to classical one-photon bioimaging, two/multi-photon bioimaging presents significant advantages of near-infrared (NIR) excitation, deep penetration, more confined excitation areas, less scattering, and minimal photodamage outside of the focal volume. [16][17][18] Therefore, efficient and photostable twophoton fluorescent dyes have become a focus of attention.…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial-targeted fluorophore: synthesis, property and cells imaging

Liu,

Kong,

Chen

2024

New J. Chem.

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“…As a representative molecule in the eld of aggregationinduced emission (AIE), tetraphenylethylene (TPE) has freely rotatable benzene rings, and different degrees of conformational distortion may lead to changes in optical properties. 32,33 TPE pyridine derivatives as organic ligands can obtain higherdimensional CPs with excellent optical properties and novel structures. It is of great signicance to design and develop more new TPE derivatives and expand their applications.…”

Section: Introductionmentioning

confidence: 99%