{"title":"基于钯装饰聚（亚硫酰）改性玻璃碳电极的非酶过氧化氢传感器","authors":"Mutlu Sönmez Çelebi, Songül Kırlak Kara","doi":"10.1002/jccs.202400009","DOIUrl":null,"url":null,"abstract":"<p>Glassy carbon electrode was modified with palladium-decorated conducting poly(thionine) film to develop a simple, cost-effective, and fast amperometric sensor for the detection of H<sub>2</sub>O<sub>2</sub>. Conducting PTH film served as a porous and stable support matrix for even distribution of the Pd nanomaterials. In order to get the maximum performance from the modified electrode system, experimental conditions were optimized using chronoamperometry. The Pd/PTH@GCE electrode showed maximum performance in buffer solution at pH = 7.5 meaning it is suitable for the detection of H<sub>2</sub>O<sub>2</sub> at physiological pH (7.4). Scanning Electron Microscopy was performed for physical characterization of the modified electrodes using pencil graphite electrodes. The active surface area for Pd/PTH-modified GCE was calculated as 1.103 cm<sup>2</sup>. The linear concentration range was determined as 0.2–7.0 mM and its sensitivity was determined as 40.0 μA mM<sup>−1</sup>. The detection limit (LOD) of the sensor was calculated as 12.3 μM with a signal/noise ratio of 3.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Non-enzymatic hydrogen peroxide sensor based on palladium-decorated poly(thionine) modified glassy carbon electrode\",\"authors\":\"Mutlu Sönmez Çelebi, Songül Kırlak Kara\",\"doi\":\"10.1002/jccs.202400009\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Glassy carbon electrode was modified with palladium-decorated conducting poly(thionine) film to develop a simple, cost-effective, and fast amperometric sensor for the detection of H<sub>2</sub>O<sub>2</sub>. Conducting PTH film served as a porous and stable support matrix for even distribution of the Pd nanomaterials. In order to get the maximum performance from the modified electrode system, experimental conditions were optimized using chronoamperometry. The Pd/PTH@GCE electrode showed maximum performance in buffer solution at pH = 7.5 meaning it is suitable for the detection of H<sub>2</sub>O<sub>2</sub> at physiological pH (7.4). Scanning Electron Microscopy was performed for physical characterization of the modified electrodes using pencil graphite electrodes. The active surface area for Pd/PTH-modified GCE was calculated as 1.103 cm<sup>2</sup>. The linear concentration range was determined as 0.2–7.0 mM and its sensitivity was determined as 40.0 μA mM<sup>−1</sup>. The detection limit (LOD) of the sensor was calculated as 12.3 μM with a signal/noise ratio of 3.</p>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/jccs.202400009\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jccs.202400009","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Non-enzymatic hydrogen peroxide sensor based on palladium-decorated poly(thionine) modified glassy carbon electrode
Glassy carbon electrode was modified with palladium-decorated conducting poly(thionine) film to develop a simple, cost-effective, and fast amperometric sensor for the detection of H2O2. Conducting PTH film served as a porous and stable support matrix for even distribution of the Pd nanomaterials. In order to get the maximum performance from the modified electrode system, experimental conditions were optimized using chronoamperometry. The Pd/PTH@GCE electrode showed maximum performance in buffer solution at pH = 7.5 meaning it is suitable for the detection of H2O2 at physiological pH (7.4). Scanning Electron Microscopy was performed for physical characterization of the modified electrodes using pencil graphite electrodes. The active surface area for Pd/PTH-modified GCE was calculated as 1.103 cm2. The linear concentration range was determined as 0.2–7.0 mM and its sensitivity was determined as 40.0 μA mM−1. The detection limit (LOD) of the sensor was calculated as 12.3 μM with a signal/noise ratio of 3.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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