Several studies have demonstrated that AgS QDs are promising near-infrared II-emitting nanoprobes. They AgS QDs can be used in the fields of bio-imaging, fluorescence detection and photodetectors. In this work, we achieved the first successful construction of a dual-input logic gate IMPLICATION gate based on the specific detection of Fe by silver sulfide quantum dots and the reduction of Fe by ascorbic acid. The AgS QDs were successfully prepared from glutathione and silver nitrate and characterized by fluorescence spectroscopy analysis, XPS analysis, and transmission electron microscopy TEM analysis. The prepared AgS QDs can achieve selective detection of Fe with a detection limit of LOD of 0.15 mM. This work provides a new method for the detection of Fe.

中文翻译：

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Ag2S QD 对 Fe3+ 的选择性检测以及蕴含门的构建

多项研究表明，AgS 量子点是有前景的近红外 II 发射纳米探针。这些AgS量子点可用于生物成像、荧光检测和光电探测器领域。在这项工作中，我们首次成功构建了基于硫化银量子点对Fe的特异性检测和抗坏血酸对Fe的还原的双输入逻辑门蕴含门。以谷胱甘肽和硝酸银为原料成功制备了AgS量子点，并通过荧光光谱分析、XPS分析和透射电子显微镜TEM分析对其进行了表征。制备的AgS量子点可以实现Fe的选择性检测，检测限LOD为0.15 mM。该工作为Fe的检测提供了一种新方法。