{"title":"A low-cost, flexible electrochemical sensor for monitoring silver ion concentration in alginate wound dressings","authors":"R. Rahimi, M. Ochoa, B. Ziaie","doi":"10.1109/ICSENS.2013.6688371","DOIUrl":null,"url":null,"abstract":"We present an inexpensive flexible Ag+ sensor on a paper substrate that can be embedded into commercial silver dressings to enable real-time monitoring of the Ag+ concentration in situ. The sensor consists of a silver measuring electrode and a Ag/AgCl reference electrode screen-printed on a laser-machined parchment paper substrate; the reference electrode is covered with PDMS chambers of KCl and KNO3 to form a double-junction electrode. The fabrication features layerby-layer assembly with no need for expensive cleanroom processes. Experiments in aqueous solutions of various concentrations of AgNO3 show a generated potential that is linear (r2=0.9752) with log[Ag+] and has a sensitivity of 62 mV/decade.","PeriodicalId":258260,"journal":{"name":"2013 IEEE SENSORS","volume":"45 1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE SENSORS","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICSENS.2013.6688371","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We present an inexpensive flexible Ag+ sensor on a paper substrate that can be embedded into commercial silver dressings to enable real-time monitoring of the Ag+ concentration in situ. The sensor consists of a silver measuring electrode and a Ag/AgCl reference electrode screen-printed on a laser-machined parchment paper substrate; the reference electrode is covered with PDMS chambers of KCl and KNO3 to form a double-junction electrode. The fabrication features layerby-layer assembly with no need for expensive cleanroom processes. Experiments in aqueous solutions of various concentrations of AgNO3 show a generated potential that is linear (r2=0.9752) with log[Ag+] and has a sensitivity of 62 mV/decade.
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