Tetrachromic InP/ZnS quantum dots-based fluorescent sensor arrays for accurate discrimination of multiplex metal ions

IF 4.3 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2025-10-02 DOI:10.1016/j.ces.2025.122735

Jianan Huang , Xianlin He , Ruqi Zhang, Zixuan Ding, Yanting Song, Haimei Yang

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引用次数: 0

Abstract

Accurate identification of multiple teas based on the difference in their contents and species of metal ions is vital in food inspection and public health. However, achieving accurate sensing from one material with various transduction signals and excellent anti-interference remains a challenge. Herein, a four-channel sensing platform was constructed by combining with four water-soluble InP/ZnS QDs with independent emission. The fluorescence intensities of the four water-soluble InP/ZnS QDs change in different degrees owing to the synergistic coordinative effect between metal ions and ligands. Interestingly, the multi-channel sensing platform allows the qualitative performance of metal ions with excellent anti-interference, high sensitivity, and high accuracy in binary and ternary mixtures. Moreover, the multi-channel fluorescent array exhibited a universality-powerful capability for identifying five teas with satisfactory results. The universal application for detecting Cr⁶⁺, Hg²⁺, and Cu²⁺ in various tea drinks was demonstrated with excellent recovery, indicating a promising potential application in food safety.

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基于四色InP/ZnS量子点的多金属离子精确识别荧光传感器阵列

根据茶叶中金属离子的含量和种类的不同，对多种茶叶进行准确的鉴别，在食品检验和公共卫生中具有重要意义。然而，在一种材料上实现具有多种转导信号和优异抗干扰性的精确传感仍然是一个挑战。在此基础上，利用四个独立发射的水溶性InP/ZnS量子点组成了一个四通道传感平台。由于金属离子与配体之间的协同配位作用，4种水溶性InP/ZnS量子点的荧光强度发生了不同程度的变化。有趣的是，多通道传感平台允许金属离子在二元和三元混合物中具有优异的抗干扰性，高灵敏度和高精度的定性性能。此外，该多通道荧光阵列具有较强的通用性，可对5种茶叶进行识别，结果令人满意。该方法可广泛应用于各种茶饮料中Cr6+、Hg2+和Cu2+的检测，具有良好的回收率，在食品安全领域具有广阔的应用前景。

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

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.