A curcumin-based AIEE-active fluorescent probe for Cu²⁺detection in aqueous solution

Abstract

A curcumin-based AIEE-active L1 was synthesized and used to prepare an on-off fluorescent probe for Cu2+ detection in aqueous solution.

Rational design and comparison of three curcumin-based fluorescent probes for viscosity detection in living cells and zebrafish

“…33,34 In recent years, some curcumin-based fluorescent compounds have been shown to exhibit excellent fluorescence characteristics and tunable emission wavelengths. 35–37 Li created two curcumin-based probes with good viscosity-detecting abilities, but the probes could not accurately reflect viscosity changes under the influence of polarity. 38 At present, curcumin-based probes are mainly synthesized by utilizing the reaction of β-diketone with boron trifluoride to form difluoroboron β-diketonate complexes.…”

Theoretical Investigation on the “ON-OFF” Mechanism of a Fluorescent Probe for Thiophenols: Photoinduced Electron Transfer and Intramolecular Charge Transfer

“…Compared to other methods, fluorescent probes can penetrate deep into the tissue, reducing the interference of the autofluorescence of samples, and thus realizing the detection of biological samples. Fluorescent probes Molecules 2023, 28, 6921 2 of 13 have been synthesized primarily by relying on a diverse array of sensing mechanisms, including excited-state intramolecular proton transfer (ESIPT) [14][15][16], chelation-enhanced fluorescence (CHEF) [17][18][19], photoinduced electron transfer (PET) [20][21][22], intramolecular charge transfer (ICT) [23,24], and aggregation-induced enhanced emission (AIEE) [25,26]. ESIPT based fluorescent probes exhibit unique excited-state photophysical properties of high fluorescence quantum yield and large Stokes shift.…”