具有红色上转换发光和近红外二区发光的生物可降解镧系掺杂无机纳米颗粒用于生物成像和光动力治疗

Science China Materials, Год журнала: 2023, Номер 66(7), С. 2893 - 2901

Опубликована: Апрель 11, 2023

Язык: Английский

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Discrete Heteropolynuclear Yb/Er Assemblies: Switching on Molecular Upconversion Under Mild Conditions

Angewandte Chemie International Edition, Год журнала: 2021, Номер 60(41), С. 22368 - 22375

Опубликована: Авг. 12, 2021

Abstract The salts {[Ln 2 Ln*(Hhmq) 3 (OAc) (hfac) ] + [Ln*(hfac) (OAc)(MeOH)] − } (Hhmq=2‐methanolquinolin‐8‐oxide, hfac=hexafluoroacetylacetonate; Ln, Ln*=Er, Gd, Yb) feature a discrete heteronuclear cation consisting of two types lanthanide atoms. quinolinoxy O‐atom serves as μ ‐bridge to Ln atoms and all three atoms, with metal⋅⋅⋅metal distances being around 3.7 Å. For 1 ( [Yb Er] ), near‐infrared downshifted luminescence is switched competitive upconversion upon irradiation by 980 nm laser under an extremely low excitation power (0.288 W cm −2 ) through introduction fluoride ions. stability after addition was confirmed powder X‐ray diffraction multistage mass spectrometry, associated the H NMR 6 [La Eu] ). More importantly, at least 20‐fold enhancement quantum yield in non‐deuterated solvents room temperature densities (2 highest among few molecular examples reported.

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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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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Emerging trends in the design and potential applications of luminescent lanthanide coordination complexes for photodynamic therapy

Deleted Journal, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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