{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T06:02:06Z","timestamp":1762408926120,"version":"build-2065373602"},"reference-count":24,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2013,3,19]],"date-time":"2013-03-19T00:00:00Z","timestamp":1363651200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Electrochemical devices using as substrates copier grade transparency sheets are developed by using ion conducting Nafion:polypyrrole mixtures, deposited between gold bottom electrodes and upper electrodes based on Multi Walled Carbon Nanotubes (MWCNTs). The electrical properties of the Nafion:polypyrrole blends and of the gold\/Nafion:polypyrrole\/MWCNTs devices are investigated under dry conditions and in deionized water by means of frequency dependent impedance measurements and time domain electrical characterization. According to current-voltage measurements carried out in deionized water, the steady state current forms cycles characterized by redox peaks, the intensity and position of which reversibly change in response to H2O2, with a lower detection limit in the micromolar range. The sensitivity that is obtained is comparable  with that of other electrochemical sensors that however, unlike our devices, require supporting electrolytes.<\/jats:p>","DOI":"10.3390\/s130303878","type":"journal-article","created":{"date-parts":[[2013,3,19]],"date-time":"2013-03-19T12:33:57Z","timestamp":1363696437000},"page":"3878-3888","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":35,"title":["Electrical Characterization and Hydrogen Peroxide Sensing Properties of Gold\/Nafion:Polypyrrole\/MWCNTs Electrochemical Devices"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3295-0206","authenticated-orcid":false,"given":"Graziella","family":"Scandurra","sequence":"first","affiliation":[{"name":"Dipartimento di Ingegneria Elettronica, Chimica e Ingegneria Industriale, Universit\u00e0 di Messina,  Messina I-98166, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonella","family":"Arena","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria Elettronica, Chimica e Ingegneria Industriale, Universit\u00e0 di Messina,  Messina I-98166, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carmine","family":"Ciofi","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria Elettronica, Chimica e Ingegneria Industriale, Universit\u00e0 di Messina,  Messina I-98166, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gaetano","family":"Saitta","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria Elettronica, Chimica e Ingegneria Industriale, Universit\u00e0 di Messina,  Messina I-98166, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2013,3,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2032","DOI":"10.1109\/JSEN.2011.2111367","article-title":"An optical fiber sensing probe using a titanium(IV) oxyacetylacetonate immobilized nafion coating on an bent optical fiber probe","volume":"11","author":"Hu","year":"2011","journal-title":"Sens. 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