With intent to fine tune the morphological and photophysical properties, three novel AIE luminogens (BQ1-BQ3) based on quinoline-BODIPY have been synthesized. A judicious choice of substituents (-H, -CH3, -OCH3) in these systems led to nanoballs in BQ1 and BQ2, while in BQ3 it led to reticulated nanofibers with diverse photophysical behaviours.
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http://dx.doi.org/10.1039/c5cc02488a | DOI Listing |
Spectrochim Acta A Mol Biomol Spectrosc
March 2025
Jiangxi Province Key Laboratory of Organic Functional Molecules, Institute of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China; Department of Ecology and Environment, Yuzhang Normal University, Nanchang 330103, China. Electronic address:
Three novel D-A-D-structured emitters derived from 9, 10-dithienylanthracene derivatives (DTAs) were synthesized and characterized. These DTAs consist of substituted 9-phenyl-9H-carbazole (BPCB-DTA), triphenylamine (BTPA-DTA) and N, N-dimethylaniline (BDMA-DTA) as donor units, with the phenylacetonitrile group serving as the acceptor. The impact of steric hindrance and electronic effect of the substituents on the optical properties has been thoroughly discussed.
View Article and Find Full Text PDFCarbohydr Polym
May 2025
CQC-IMS, Department of Chemistry, University of Coimbra, Coimbra P-3004-535, Portugal. Electronic address:
In this study, we exploit the confinement effect of cyclodextrin-based polymers to achieve highly enhanced fluorescence properties of luminogens like tetraphenylethene (TPE) and 1,2,3,4-tetraphenyl-1,3-cyclopentadiene (TPC) in the solid state. The resulting materials achieving values of fluorescence quantum yields, ϕ = 60 % and 81 % respectively, have potential applications in fields such as chemistry, biology and more interestingly, materials science, particularly where high concentrations of fluorophores are required without loss of photophysical properties, due to aggregation-caused quenching. The strategy developed allows both modulation of vessel morphology and control over the photophysical properties of the final material by i) controlling the solvent or solvent mixture used for the luminogen transport within the polymer matrix and ii) varying the cross-linking ratio in the polymeric synthesis.
View Article and Find Full Text PDFChem Asian J
March 2025
Department of Chemical Science and Engineering, Institute of Science Tokyo, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8552, Japan.
Recently, we developed a new aggregation-induced emission (AIE) luminogen (AIEgen), bridged stilbene, by incorporating a propylene group into the C=C bond of the luminescent phenyl stilbene. This bridged structure, featuring a seven-membered ring, induces a significant conformational change, causing the C=C bond to twist in the excited state, thereby enhancing non-radiative decay in solution. In this study, we introduced bridged structures with alkylene groups of varying lengths into (E,E)-1,4-diphenyl-1,3-butadiene (DPB).
View Article and Find Full Text PDFOrg Biomol Chem
March 2025
School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Shenzhen 518172, China.
Investigating organic reactions to synthesize novel molecules that exhibit aggregation-induced emission (AIE) characteristics is becoming a research hotspot. Herein, we develop a one-pot phosphinylation/cyclization reaction between propynolaldehydes and diarylphosphine oxides to generate isobenzofuran-substituted phosphine oxides (IBFPOs) displaying AIE properties. Such a reaction possesses benefits such as metal-free synthesis, simple operation and wide substrate applicability.
View Article and Find Full Text PDFMater Today Bio
April 2025
Department of Laboratory Medicine, Guangdong Provincial Key Laboratory of Precision Medical Diagnostics, Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Guangdong Provincial Key Laboratory of Single-cell and Extracellular Vesicles, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Therapeutic resistance is a major challenge in clinical cancer theranostics, often leading to treatment failure and increased patient mortality. Breaking this therapeutic deadlock, enhancing the efficacy of clinical treatments, and ultimately improving patient survival rates are both highly desirable and significantly challenging goals. Herein, we have developed a new fluorescent luminogen, QM-DMAC, which features aggregation-induced emission (AIE), and exceptional viscosity-responsive properties.
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