{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T06:24:31Z","timestamp":1775802271057,"version":"3.50.1"},"reference-count":53,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2019,12,4]],"date-time":"2019-12-04T00:00:00Z","timestamp":1575417600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A homoleptic ionic Cu(I) coordination complex that was based on 2,2\u2032-biquinoline ligand functionalized with long alkyl chains (Cu(I)\u2013C18) was used as a precursor to modify a carbon nanofiber paste electrode (Cu\u2013C18\/CNF). Randomized copper oxide microelectrode arrays dispersed within carbon nanofiber paste (CuOx\/CNF) were obtained by electrochemical treatment of Cu\u2013C18\/CNF while using cyclic voltammetry (CV). The CuOx\/CNF exhibited high electrocatalytic activity towards glucose oxidation at +0.6 V and +1.2 V vs. Ag\/AgCl. Infrared Spectroscopy (FTIR) and scanning electron microscopy (SEM) characterized the electrodes composition. Cyclic voltammetry (CV), square wave-voltammetry (SWV), and multiple-pulsed amperometry (MPA) techniques provided optimized conditions for glucose oxidation and detection. A preconcentration step that involved 10 minutes accumulation at open circuit potential before SWV running led to the lowest limit of detection and the highest sensitivity for glucose detection (5419.77 \u00b5A\u00b7mM\u22121\u00b7cm\u22122 at + 1.1 V vs. Ag\/AgCl) vs. Cu-based electrodes reported to date in literature.<\/jats:p>","DOI":"10.3390\/s19245353","type":"journal-article","created":{"date-parts":[[2019,12,5]],"date-time":"2019-12-05T03:16:36Z","timestamp":1575515796000},"page":"5353","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Cu(I) Coordination Complex Precursor for Randomized CuOx Microarray Loaded on Carbon Nanofiber with Excellent Electrocatalytic Performance for Electrochemical Glucose Detection"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0488-8452","authenticated-orcid":false,"given":"Sorina","family":"Motoc","sequence":"first","affiliation":[{"name":"\u201cCoriolan Dragulescu\u201d Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carmen","family":"Cretu","sequence":"additional","affiliation":[{"name":"\u201cCoriolan Dragulescu\u201d Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7825-2943","authenticated-orcid":false,"given":"Otilia","family":"Costisor","sequence":"additional","affiliation":[{"name":"\u201cCoriolan Dragulescu\u201d Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anamaria","family":"Baciu","sequence":"additional","affiliation":[{"name":"Department of Applied Chemsitry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, 2 Victoriei Square, 300006 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Florica","family":"Manea","sequence":"additional","affiliation":[{"name":"Department of Applied Chemsitry and Engineering of Inorganic Compounds and Environment, Politehnica University of Timisoara, 2 Victoriei Square, 300006 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3193-807X","authenticated-orcid":false,"given":"Elisabeta I.","family":"Szerb","sequence":"additional","affiliation":[{"name":"\u201cCoriolan Dragulescu\u201d Institute of Chemistry, Romanian Academy, 24 Mihai Viteazu Bvd., 300223 Timisoara, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,12,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"720","DOI":"10.1016\/j.apsusc.2019.02.130","article-title":"Electrochemically derived CuO nanorod from copper-based metal-organic framework for non-enzymatic detection of glucose","volume":"479","author":"Kim","year":"2019","journal-title":"Appl. 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