Youen Le Lirzin;Alexandre Khaldi;Lukas Gourhant;Laurent Dupont
{"title":"Sensor Using Liquid Crystal for Organophosphate Warfare Agent's Detection","authors":"Youen Le Lirzin;Alexandre Khaldi;Lukas Gourhant;Laurent Dupont","doi":"10.1109/LSENS.2024.3431455","DOIUrl":null,"url":null,"abstract":"In this letter, we present better understanding and improvements for a neurotoxic gas sensor using liquid crystal (LC) anchoring transition. A theoretical model has been established and checked with dimethyl methylphosphonate gas at concentrations as low as 1 ppm. The experimental results are consistent with the state of the art. A new fabrication technique using jet printing that allows one to increase the transduction dynamic is discussed. Chitosan material has been tested as a functionalization method to increase the lifetime of the transducer.","PeriodicalId":13014,"journal":{"name":"IEEE Sensors Letters","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Sensors Letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10609740/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this letter, we present better understanding and improvements for a neurotoxic gas sensor using liquid crystal (LC) anchoring transition. A theoretical model has been established and checked with dimethyl methylphosphonate gas at concentrations as low as 1 ppm. The experimental results are consistent with the state of the art. A new fabrication technique using jet printing that allows one to increase the transduction dynamic is discussed. Chitosan material has been tested as a functionalization method to increase the lifetime of the transducer.