Raman, ROA, and luminescence spectra of chiral lanthanide complexes with L- and D-Alanine

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2025, Номер 330, С. 125713 - 125713

Опубликована: Янв. 14, 2025

Язык: Английский

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Luminescent Lanthanides in Biorelated Applications: From Molecules to Nanoparticles and Diagnostic Probes to Therapeutics

Chemical Reviews, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Lanthanides are particularly effective in their clinical applications magnetic resonance imaging and diagnostic assays. They have open-shell 4f electrons that give rise to characteristic narrow, line-like emission which is unique from other fluorescent probes biological systems. Lanthanide luminescence signal offers selection of detection pathways based on the choice ion visible near-infrared with long lifetimes lend themselves time-resolved measurements for optical multiplexing schemes novel bioimaging applications. The delivery lanthanide agents cells allows localized bioresponsive activity therapies. Detection region spectrum coupled technological advances microscopies opens new avenues deep-tissue surgical interventions. This review focuses different ways can be exploited nucleic acid enzyme detection, anion recognition, cellular imaging, tissue photoinduced therapeutic We focused hierarchy designs include luminescent lanthanides as biology considering coordination complexes, multimetallic systems metal-organic frameworks nanoparticles highlighting strategies downshifting, upconversion revealing some opportunities challenges offer potential further development field.

Язык: Английский

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Transparent and luminescent zirconia-based hybrid materials covalently linked with lanthanide complexes

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114221 - 114221

Опубликована: Март 1, 2025

Язык: Английский

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Chiral europium halides with high-performance magnetic field tunable red circularly polarized luminescence at room temperature

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 14, 2025

Chiral organic-inorganic hybrid metal halides as promising circularly polarized luminescence (CPL) emitter candidates hold great potential for high-definition displays and future spin-optoelectronics. The recent challenge lies primarily in developing high-performance red CPL emitters. Here, coupling the f-f transition characteristics of trivalent europium ions (Eu3+) with chirality, we construct chiral Eu-based halides, (R/S-3BrMBA)3EuCl6, which exhibit strong predictable emission large photoluminescence quantum yield (59.8%), narrow bandwidth (≈2 nm), long lifetime ms), together dissymmetry factor |glum| 1.84 × 10−2. Compared previously reported these show highest brightness. Furthermore, degree polarization (R/S-3BrMBA)3EuCl6 can be manipulated by external magnetic field. Particularly, benefiting from field-generated Zeeman splitting spin mixing at exciton states, an anomalously positive magneto-photoluminescence was observed room temperature. This work provides efficient strategy constructing both pure-red It also opens door rare-earth toward optoelectronic spintronic applications. perovskites are materials luminescence. Here authors present leading to magneto-chiroptical properties.

Язык: Английский

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Circularly polarized luminescence with high dissymmetry factors for achiral organic molecules in solutions

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 26, 2025

Circularly polarized luminescence (CPL) in solution offers several advantages. However, it remains challenging for organic molecules to achieve circularly with high dissymmetry factor (glum) solution. Herein, a general strategy is developed by placing chiral nematic liquid crystals (N*-LCs) behind the of achiral molecules. The selective reflection-transmission mechanism solution-N*-LC composite system enables generation full-color and white light |glum| even reaching 2.0. This demonstrates versatility, being applicable both aqueous solutions, effectively achieving multiple glum values. Additionally, CPL switching logic gate applications are successfully realized leveraging N*-LCs reversible acid-base responsiveness systems. work provides robust values solutions. advantages, however, factors Here, authors report using

Язык: Английский

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Multifunctional lanthanide(III) single-molecule magnets displaying luminescence thermometry: Progress, challenges, and future directions

Coordination Chemistry Reviews, Год журнала: 2025, Номер 537, С. 216685 - 216685

Опубликована: Апрель 15, 2025

Язык: Английский

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Helically Assembled Rare Earth Fluoride Nanoparticles with Multicolor Circularly Polarized Luminescence for High‐Security Anti‐Counterfeiting

Aggregate, Год журнала: 2025, Номер unknown

Опубликована: Апрель 15, 2025

ABSTRACT Multicolor circularly polarized luminescence (CPL) materials show considerable potential in the field of advanced anti‐counterfeiting. However, it remains challenging to achieve stable inorganic with multicolor CPL. In this work, for first time, chiroptical rare earth (RE) fluoride nanoparticles induced by helical silica are obtained through a facile situ assembly strategy. The influence ratio and morphological structure on dissymmetry factor (g lum ) has been systematically investigated, leading an optimized g value 4.7 × 10 −3 . By adjusting types concentrations RE dopants (Ce 3+ , Tb Eu ), nanocomposites exhibit CPL time‐resolved photoluminescence characteristics. Remarkably, these retain their activity even after calcination at 400°C. Leveraging visible emissions, along hidden dynamic signals, successfully applied high‐security anti‐counterfeiting patterns multilevel optical encryption codes.

Язык: Английский

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Radiation Effects On Eu-Complex-Doped Pmma and Nanosilver Compounds After Exposure to Γ-Irradiation

Опубликована: Янв. 1, 2025

Язык: Английский

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