硫代纳米团簇检测H2O2和Ba2+的强荧光演变

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Structure Pub Date : 2025-04-14 DOI:10.1016/j.molstruc.2025.142369

Priyanka Sharma , Mainak Ganguly , Ankita Doi

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引用次数: 0

摘要

通过采用发光灯泡的改进水热技术获得了高荧光硫代酸保护的AuAg@Na纳米团簇（GSS@Na）（基于离散能级和自然结晶/约束之间的d-d跃迁）。双氧水选择性、灵敏地猝灭了荧光，仅Ba2+增强了荧光。因此，我们设计了H2O2（线性检测范围为10-4 M ~ 10-7 M，检出限为1.2 × 10-5 M）和Ba2+（检出限为7.8 × 10-7 M，线性检测限为10-5 M ~ 10-8 M）传感平台。电子电荷再分配的操纵被认为是关闭/打开荧光的关键因素。此外，将该协议应用于自然样本的原型应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Evolution of strong fluorescence from the thiolated nanoclusters for the detection of H2O2 and Ba2+in one pot

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Evolution of strong fluorescence from the thiolated nanoclusters for the detection of H2O2 and Ba2+in one pot

A highly fluorescent thiolate-protected AuAg@Na nanocluster (GSS@Na) (based on d-d transitions between discrete energy levels and natural crystallization/confinement) was obtained via a modified hydrothermal technique employing a glowing bulb. The fluorescence was selectively and sensitively quenched by hydrogen peroxide and mammoth enhancement was obtained with exclusively Ba²⁺. Thus, H₂O₂ [linear detection range 10^–4 M to 10^–7 M and limit of detection (LOD) 1.2 × 10^–5 M] and Ba²⁺ (LOD 7.8 × 10^–7 M and the linear detection limit10^–5 M to 10^–8 M) sensing platforms were designed in a single pot. Manipulation of electronic charge redistribution was attributed to be the pivotal factor for turn off/on fluorescence. Furthermore, the protocol was employed on natural samples for prototype applications.

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.