{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T12:30:59Z","timestamp":1791894659066,"version":"4.3.4"},"reference-count":31,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2021,7,30]],"date-time":"2021-07-30T00:00:00Z","timestamp":1627603200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Oceans and Fisheries, Korea","award":["D11502119H480000120"],"award-info":[{"award-number":["D11502119H480000120"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We studied electrochemical sensors using printed carbon nanotubes (CNT) film on a polyethylene telephtalate (PET) substrate. The mechanical stability of the printed CNT film (PCF) was confirmed by using bending and Scotch tape tests. In order to determine the optimum sensor structure, a resistance-type PCF sensor (R-type PCF sensor) and a comb-type PCF sensor (C-type PCF sensor) were fabricated and compared using a diluted NH3 droplet with various concentrations. The magnitude of response, response time, sensitivity, linearity, and limit of detection (LOD) were compared, and it was concluded that C-type PCF sensor has superior performance. In addition, the feasibility of PCF electrochemical sensor was investigated using 12 kinds of hazardous and noxious substances (HNS). The detection mechanism and selectivity of the PCF sensor are discussed.<\/jats:p>","DOI":"10.3390\/s21155179","type":"journal-article","created":{"date-parts":[[2021,8,1]],"date-time":"2021-08-01T21:44:32Z","timestamp":1627854272000},"page":"5179","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Investigation on the Printed CNT-Film-Based Electrochemical Sensor for Detection of Liquid Chemicals"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5216-7556","authenticated-orcid":false,"given":"Jaeha","family":"Noh","sequence":"first","affiliation":[{"name":"Major of Electronic Materials Engineering, Korea Maritime and Ocean University, Busan 49112, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sangsu","family":"An","sequence":"additional","affiliation":[{"name":"Major of Electronic Materials Engineering, Korea Maritime and Ocean University, Busan 49112, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Changhan","family":"Lee","sequence":"additional","affiliation":[{"name":"Major of Electronic Materials Engineering, Korea Maritime and Ocean University, Busan 49112, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiho","family":"Chang","sequence":"additional","affiliation":[{"name":"Major of Electronic Materials Engineering, Korea Maritime and Ocean University, Busan 49112, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Snagtae","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Offshore Plant Management, Korea Maritime and Ocean University, Busan 49112, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4665-3333","authenticated-orcid":false,"given":"Moonjin","family":"Lee","sequence":"additional","affiliation":[{"name":"Maritime Safety and Environmental Research Division, Korea Research Institute of Ships and Ocean Engineering (KRISO), Daejeon 34103, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongmin","family":"Seo","sequence":"additional","affiliation":[{"name":"Maritime Safety and Environmental Research Division, Korea Research Institute of Ships and Ocean Engineering (KRISO), Daejeon 34103, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"127040","DOI":"10.1016\/j.snb.2019.127040","article-title":"Improved CO gas detection of Si MOSFET gas sensor with catalytic Pt decoration and pre-bias effect","volume":"300","author":"Hong","year":"2019","journal-title":"Sens. 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