{"title":"Towards All-Polymeric Cochlear Implant Micro-Electrode Arrays","authors":"Alberto Miralles-Abete, Paddy J. French","doi":"10.1109/SENSORS47087.2021.9639615","DOIUrl":null,"url":null,"abstract":"This paper shows that PEDOT:PSS is an excellent material for all-polymeric cochlear implant micro-electrode arrays. Initial experiments have shown a high conductivity of 230 S/cm for PEDOT:PSS samples, which dramatically decreased to 0.48 S/cm after 3 hours of UV treatment. Electrical characterisation of PEDOT:PSS electrodes reveals that its maximum charge injection capacity is 15 times higher than that of platinum, the electrode material used in commercial cochlear implants. These experiments demonstrate that PEDOT:PSS is an excellent candidate material for cochlear implants, both as micro-electrode and insulating layer.","PeriodicalId":6775,"journal":{"name":"2021 IEEE Sensors","volume":"42 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE Sensors","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SENSORS47087.2021.9639615","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
This paper shows that PEDOT:PSS is an excellent material for all-polymeric cochlear implant micro-electrode arrays. Initial experiments have shown a high conductivity of 230 S/cm for PEDOT:PSS samples, which dramatically decreased to 0.48 S/cm after 3 hours of UV treatment. Electrical characterisation of PEDOT:PSS electrodes reveals that its maximum charge injection capacity is 15 times higher than that of platinum, the electrode material used in commercial cochlear implants. These experiments demonstrate that PEDOT:PSS is an excellent candidate material for cochlear implants, both as micro-electrode and insulating layer.
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