Rare earth complexes chemiluminescence catalyzed by gold nanoparticles for fast sensing of Tb3+ and Eu3+

Yuan, Jiajia; Fan, Xiaoya; Yang, Jian; Zhang, Xinfeng

doi:10.1016/j.cclet.2023.108155

Cited by 16 publications

(3 citation statements)

References 36 publications

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“…Similar to other QDs, , the emission peak and luminescence intensity can change with the variation of the excitation wavelength. As shown in Figure D, when the excitation light wavelength was changed from 320 to 420 nm, the corresponding emission peak was red-shifted from 430 to 480 nm.…”

Section: Resultsmentioning

confidence: 88%

Facile Light-Driven Synthesis of Highly Luminous Sulfur Quantum Dots for Fluorescence Sensing and Cell Imaging

Li,

Fan,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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Sulfur quantum dots (SQDs) are emerging fluorescent nanomaterials, whereas most of the methods for synthesizing SQDs are limited to thermal synthesis. In this study, we report the first case of a light-driven strategy for facile synthesis of SQDs and further applied the SQDs for fluorescence cell imaging. The light-driven synthesis strategy only utilized Na2S as the sulfur source and nano-TiO2 as the photosensitizer. Under ultraviolet illumination, the nano-TiO2 photosensitizer generated a large number of •O2– and •OH to oxidize S2– to S x 2– and further to elemental sulfur, which could be obtained as monodispersed SQDs after etching by H2O2. The prepared SQDs exhibit excellent tunable photoluminescence properties, superior stability, and a uniform small size, with particle diameters in the range of 0.5–4 nm, and the fluorescence absolute quantum yield is as high as 27.8%. Meanwhile, the prepared SQDs also exhibited extreme biocompatibility and stability, and we further applied it for intracellular imaging and Hg2+ sensing with satisfactory results. In comparison to the widely reported thermal synthesis, the light-driven synthesis method is greener and simpler, opening a new way for the preparation of biocompatible SQDs.

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Section: Resultsmentioning

confidence: 88%

Facile Light-Driven Synthesis of Highly Luminous Sulfur Quantum Dots for Fluorescence Sensing and Cell Imaging

Li,

Fan,

Chen

et al. 2024

ACS Appl. Mater. Interfaces

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“…This seminal work has inaugurated a new era in Zr-MOC research, characterized by the incorporation of multifunctional groups into the Zr-MOC framework. Such advancements underscore the remarkable potential of Zr-MOCs across a spectrum of applications including gas separation, 5 catalysis, 6 sensing, [7][8][9][10] and beyond.…”

mentioning

confidence: 99%

Study of self-assembly of mixed-ligand metal–organic cages by high-resolution mass spectrometry

Tong,

Jia,

Huang

et al. 2024

Mater. Adv.

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“…Methyl groups in DNA methylation damage are small and chemically inert, minimal change to DNA structure unlike DNA strand breaks, which limits its detection sensitivity and universal applications. Currently, various chemical and biochemical assays have been proposed for the detection of DNA methylation damage, including fluorescence, [6][7][8][9] SERS, [10][11][12] HPLC-MS, 13-15 photoelectrochemistry, [16][17][18][19] (electro-) chemiluminescence [20][21][22][23][24] and electrochemistry. [25][26][27][28] Among these methods, the application of electrochemistry in DNA methylation detection shows its simplicity, high selectivity, and low cost.…”

mentioning

confidence: 99%

Label-Free and Sensitive Electrochemical Detection of DNA Methylation Damage Based on DNA Glycosylase Recognition and Excision Coupled with Exonuclease III Amplification

Zhang,

Su,

Shi

et al. 2023

J. Electrochem. Soc.

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Because cytotoxic DNA methylated bases are chemically inert and small in size, limited biosensing strategies, especially with high sensitivity, were established to detect DNA methylation damage. In this work, a label-free electrochemical assay was proposed for the sensitive detection of DNA methylation damage in dsDNA film on indium tin oxide electrode. The human alkyladenine DNA glycosylase was employed to recognize and selectively remove DNA methylated bases, generating apurinic site. Subsequently, exonuclease Ⅲ not only further converted the methylation sites into strand breaks, but also progressively removed nucleotides from the 3′ to 5′ end starting from the apurinic sites. These processes could maximally amplify DNA methylation damage, also confirmed by gel electrophoresis and fluorescence measurements. The damaged DNA film bound much less electrochemical indicator, Ru(bpy)2(dppz)2+, and accompanied by an anodic current drop. As a result, DNA methylation damage produced with as low as 10 μM of methyl methanesulfonate can be detected, which was 100-fold lower than the previously reported photoelectrochemical sensing strategy. Other DNA base modification products showed much less decrease of oxidation current, demonstrating its good selectivity. This strategy can be utilized to sensitively and rapidly assess the genotoxicity of environmental pollutants.

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Rare earth complexes chemiluminescence catalyzed by gold nanoparticles for fast sensing of Tb3+ and Eu3+

Cited by 16 publications

References 36 publications

Facile Light-Driven Synthesis of Highly Luminous Sulfur Quantum Dots for Fluorescence Sensing and Cell Imaging

Facile Light-Driven Synthesis of Highly Luminous Sulfur Quantum Dots for Fluorescence Sensing and Cell Imaging

Study of self-assembly of mixed-ligand metal–organic cages by high-resolution mass spectrometry

Label-Free and Sensitive Electrochemical Detection of DNA Methylation Damage Based on DNA Glycosylase Recognition and Excision Coupled with Exonuclease III Amplification

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