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

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

引用次数: 0

Abstract

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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硫代纳米团簇检测H2O2和Ba2+的强荧光演变

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。

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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

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