{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T16:48:55Z","timestamp":1773679735165,"version":"3.50.1"},"reference-count":62,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T00:00:00Z","timestamp":1770508800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T00:00:00Z","timestamp":1770508800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100007689","name":"Universidade de Aveiro","doi-asserted-by":"publisher","award":["BI\/REIT\/11134\/2024"],"award-info":[{"award-number":["BI\/REIT\/11134\/2024"]}],"id":[{"id":"10.13039\/100007689","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Adv Materials Technologies"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Assessment of respiratory volumes is crucial for the long\u2010term management of chronic respiratory diseases. However, standard methods such as spirometry require active patient cooperation and are unsuitable for regular monitoring. This study introduces capacitive pressure sensors integrated with a signal processing algorithm for respiratory assessment\/monitoring. Two sensor variants using poly(glycerol sebacate) (PGS) substrates are presented: CS1, featuring a porous structure, and CS2, incorporating a pyramidal surface pattern. Both sensors measure thoracic expansion through capacitance changes. Signals are preprocessed and statistically validated against a commercial airflow transducer in 38 healthy adult participants. Although CS1 exhibits higher sensitivity (0.09 kPa\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    ) than CS2 (0.015 kPa\n                    <jats:sup>\u2212<\/jats:sup>\n                    <jats:sup>1<\/jats:sup>\n                    ), both sensors demonstrate strong correlation (mean &gt; 0.91) with the reference device across volunteers. Measurement accuracy is confirmed by low mean absolute errors across respiratory cycles: 0.122 L (95% confidence interval (CI) \u00b1 0.027 L) for CS1, and 0.100 L (95% CI \u00b1 0.018 L) for CS2. These results demonstrate that the developed capacitive sensors and signal processing algorithm effectively capture thoracic volume changes, showing potential for non\u2010invasive and continuous respiratory monitoring.\n                  <\/jats:p>","DOI":"10.1002\/admt.202502118","type":"journal-article","created":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T08:40:54Z","timestamp":1770540054000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Respiratory Signal Processing and Analysis Using Flexible Capacitive Sensor Data"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-2437-6263","authenticated-orcid":false,"given":"Bernardo A.","family":"Vicente","sequence":"first","affiliation":[{"name":"CICECO \u2013 Aveiro Institute of Materials Department of Materials and Ceramics Engineering (DEMaC) University of Aveiro  Aveiro Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5717-1415","authenticated-orcid":false,"given":"Raquel","family":"Sebasti\u00e3o","sequence":"additional","affiliation":[{"name":"Institute of Electronics and Informatics Engineering of Aveiro (IEETA) Department of Electronics Telecommunications and Informatics (DETI) Intelligent Systems Associate Laboratory (LASI) University of Aveiro  Aveiro Portugal"},{"name":"CISeD \u2013 Research Centre in Digital Services Polytechnic Institute of Viseu  Viseu Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4980-6200","authenticated-orcid":false,"given":"Alda","family":"Marques","sequence":"additional","affiliation":[{"name":"Respiratory Research and Rehabilitation Laboratory (Lab3R) School of Health Sciences (ESSUA) and Institute of Biomedicine (iBiMED) University of Aveiro  Aveiro Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1986-1348","authenticated-orcid":false,"given":"Vitor","family":"Sencadas","sequence":"additional","affiliation":[{"name":"CICECO \u2013 Aveiro Institute of Materials Department of Materials and Ceramics Engineering (DEMaC) University of Aveiro  Aveiro Portugal"}]}],"member":"311","published-online":{"date-parts":[[2026,2,8]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12931\u2010024\u201003051\u20102"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.d142"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/mcp.0000000000000965"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.117.2_suppl.15s"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201908\u20101590ST"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.4104\/pcrj.2013.00042"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1590\/1806\u20103713\/e20180232"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/smsc.202300358"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41427\u2010023\u201000513\u20109"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41569\u2010021\u201000522\u20107"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/s43246\u2010024\u201000480\u2010w"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/VIW.20220027"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/admt.202302068"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202404348"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41746\u2010019\u20100083\u20103"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cmpb.2022.106670"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1364\/boe.376782"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010023\u201030171\u20104"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2011.2158416"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41746\u2010022\u201000691\u2010w"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.3390\/s24206513"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2022.3217325"},{"key":"e_1_2_10_24_1","doi-asserted-by":"publisher","DOI":"10.1088\/1361\u20106641\/aa68d1"},{"key":"e_1_2_10_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apenergy.2018.07.016"},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.3390\/bios13010081"},{"key":"e_1_2_10_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2021.128639"},{"key":"e_1_2_10_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nanoms.2021.11.002"},{"key":"e_1_2_10_29_1","doi-asserted-by":"publisher","DOI":"10.1002\/adhm.202002026"},{"key":"e_1_2_10_30_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.9b21739"},{"key":"e_1_2_10_31_1","unstructured":"BIOPAC Systems Inc. \u201cAirflow Transducer \u201d accessed: December2024 https:\/\/www.biopac.com\/product\/airflow\u2010transducer\/#product\u2010tabs."},{"key":"e_1_2_10_32_1","doi-asserted-by":"publisher","DOI":"10.3390\/s23177518"},{"key":"e_1_2_10_33_1","doi-asserted-by":"crossref","unstructured":"A. M.Chan N.Selvaraj N.Ferdosi andR.Narasimhan \u201cWireless Patch Sensor for Remote Monitoring of Heart Rate Respiration Activity and Falls \u201d in2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) July 3\u20137 2013 pp.6115\u20136118 https:\/\/doi.org\/10.1109\/EMBC.2013.6610948.","DOI":"10.1109\/EMBC.2013.6610948"},{"key":"e_1_2_10_34_1","doi-asserted-by":"publisher","DOI":"10.1183\/20734735.009817"},{"key":"e_1_2_10_35_1","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0b013e3182399cf7"},{"key":"e_1_2_10_36_1","doi-asserted-by":"publisher","DOI":"10.1109\/JSEN.2022.3167023"},{"key":"e_1_2_10_37_1","article-title":"A Wearable EEG Device: LANMAO Sleep Recorder Compared to Polysomnography in Terms of EEG Recording and Sleep Analysis","author":"Zheng X.","year":"2023","journal-title":"medRxiv"},{"key":"e_1_2_10_38_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41578\u2010022\u201000460\u2010x"},{"key":"e_1_2_10_39_1","doi-asserted-by":"publisher","DOI":"10.1016\/0021\u20109290(86)90124\u20107"},{"key":"e_1_2_10_40_1","doi-asserted-by":"publisher","DOI":"10.1186\/s40463\u2010017\u20100210\u20106"},{"key":"e_1_2_10_41_1","doi-asserted-by":"publisher","DOI":"10.5114\/pdia.2013.38359"},{"key":"e_1_2_10_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.0c20173"},{"key":"e_1_2_10_43_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10853\u2010024\u201009588\u20103"},{"key":"e_1_2_10_44_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.9b07636"},{"key":"e_1_2_10_45_1","doi-asserted-by":"publisher","DOI":"10.1159\/000491754"},{"key":"e_1_2_10_46_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aej.2024.11.009"},{"key":"e_1_2_10_47_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bios.2020.112799"},{"key":"e_1_2_10_48_1","unstructured":"BIOPAC Systems Inc. \u201cPulmonary Airflow Analysis \u201d accessed: February2025 https:\/\/www.biopac.com\/application\/pulmonary\u2010function\/advanced\u2010feature\/pulmonary\u2010air\u2010flow\u2010analysis\/."},{"key":"e_1_2_10_49_1","doi-asserted-by":"publisher","DOI":"10.3390\/s22166054"},{"key":"e_1_2_10_50_1","doi-asserted-by":"publisher","DOI":"10.1088\/1361\u20106560\/aa7cd4"},{"key":"e_1_2_10_51_1","doi-asserted-by":"publisher","DOI":"10.3803\/EnM.2025.2370"},{"key":"e_1_2_10_52_1","doi-asserted-by":"publisher","DOI":"10.3390\/s21217278"},{"key":"e_1_2_10_53_1","doi-asserted-by":"publisher","DOI":"10.3390\/fi16080280"},{"key":"e_1_2_10_54_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nanoen.2023.108203"},{"key":"e_1_2_10_55_1","doi-asserted-by":"publisher","DOI":"10.1183\/23120541.00681\u20102020"},{"key":"e_1_2_10_56_1","doi-asserted-by":"publisher","DOI":"10.1002\/aelm.202400884"},{"key":"e_1_2_10_57_1","doi-asserted-by":"publisher","DOI":"10.3390\/electronics14091903"},{"key":"e_1_2_10_58_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0012\u20103692(15)33498\u2010X"},{"key":"e_1_2_10_59_1","doi-asserted-by":"publisher","DOI":"10.3390\/s20185094"},{"key":"e_1_2_10_60_1","doi-asserted-by":"publisher","DOI":"10.1039\/D4MA00510D"},{"key":"e_1_2_10_61_1","doi-asserted-by":"publisher","DOI":"10.3390\/s22249953"},{"key":"e_1_2_10_62_1","doi-asserted-by":"publisher","DOI":"10.1097\/md.0000000000038818"},{"key":"e_1_2_10_63_1","doi-asserted-by":"publisher","DOI":"10.3390\/s24062018"}],"container-title":["Advanced Materials Technologies"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/admt.202502118","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/admt.202502118","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/admt.202502118","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T15:55:14Z","timestamp":1773676514000},"score":1,"resource":{"primary":{"URL":"https:\/\/advanced.onlinelibrary.wiley.com\/doi\/10.1002\/admt.202502118"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2,8]]},"references-count":62,"alternative-id":["10.1002\/admt.202502118"],"URL":"https:\/\/doi.org\/10.1002\/admt.202502118","archive":["Portico"],"relation":{},"ISSN":["2365-709X","2365-709X"],"issn-type":[{"value":"2365-709X","type":"print"},{"value":"2365-709X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2,8]]},"assertion":[{"value":"2025-10-01","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-01-28","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-02-08","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e02118"}}