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- W2912128193 abstract "In recent years, a series of curcumin analogs have been designed as fluorescent probes for detecting and imaging $${text {A}}beta$$ peptide aggregates and reactive oxygen species (ROS) in Alzheimer’s disease (AD) brains. In order to gain a better understanding of the photophysical properties of these probe molecules, a systematical computational investigation was performed using the time-dependent density functional theory (TDDFT) calculations. Computed absorption and emission wavelengths well reproduced the spectral shifts among the curcumin analogs. In particular, for a recently proposed pair of probe molecules, CRANAD-5 and CRANAD-61, for sensing ROS in preclinical studies of AD brains, their emission wavelength difference was found to arise from a delocalization of the lowest unoccupied molecular orbital of CRANAD-61 from the curcuminoid backbone to the oxalate moiety. Overall, this study reaffirms the value of employing TDDFT calculations to assist the design of new curcumin-based fluorescence probes for AD research." @default.
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- W2912128193 date "2019-01-23" @default.
- W2912128193 modified "2023-10-05" @default.
- W2912128193 title "Computational modeling of curcumin-based fluorescent probe molecules" @default.
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- W2912128193 doi "https://doi.org/10.1007/s00214-019-2415-4" @default.
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