{"title":"Selective detection of Fe3+ by Ag2S QDs and construction of the IMPLICATION gate","authors":"Lijun Liu , Lu Ga , Jun Ai","doi":"10.1016/j.sbsr.2024.100624","DOIUrl":null,"url":null,"abstract":"<div><p>Several studies have demonstrated that Ag<sub>2</sub>S QDs are promising near-infrared II-emitting nanoprobes. They Ag<sub>2</sub>S 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<sup>3+</sup> by silver sulfide quantum dots and the reduction of Fe<sup>3+</sup> by ascorbic acid. The Ag<sub>2</sub>S 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 Ag<sub>2</sub>S QDs can achieve selective detection of Fe<sup>3+</sup> with a detection limit of LOD of 0.15 mM. This work provides a new method for the detection of Fe<sup>3+</sup>.</p></div>","PeriodicalId":424,"journal":{"name":"Sensing and Bio-Sensing Research","volume":"43 ","pages":"Article 100624"},"PeriodicalIF":5.4000,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214180424000060/pdfft?md5=d15c7d4e90958898c77b0fde0c155d29&pid=1-s2.0-S2214180424000060-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensing and Bio-Sensing Research","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214180424000060","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
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Abstract
Several studies have demonstrated that Ag2S QDs are promising near-infrared II-emitting nanoprobes. They Ag2S 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 Fe3+ by silver sulfide quantum dots and the reduction of Fe3+ by ascorbic acid. The Ag2S 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 Ag2S QDs can achieve selective detection of Fe3+ with a detection limit of LOD of 0.15 mM. This work provides a new method for the detection of Fe3+.
期刊介绍：
Sensing and Bio-Sensing Research is an open access journal dedicated to the research, design, development, and application of bio-sensing and sensing technologies. The editors will accept research papers, reviews, field trials, and validation studies that are of significant relevance. These submissions should describe new concepts, enhance understanding of the field, or offer insights into the practical application, manufacturing, and commercialization of bio-sensing and sensing technologies.
The journal covers a wide range of topics, including sensing principles and mechanisms, new materials development for transducers and recognition components, fabrication technology, and various types of sensors such as optical, electrochemical, mass-sensitive, gas, biosensors, and more. It also includes environmental, process control, and biomedical applications, signal processing, chemometrics, optoelectronic, mechanical, thermal, and magnetic sensors, as well as interface electronics. Additionally, it covers sensor systems and applications, µTAS (Micro Total Analysis Systems), development of solid-state devices for transducing physical signals, and analytical devices incorporating biological materials.
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