{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T12:26:34Z","timestamp":1780489594830,"version":"3.54.1"},"reference-count":37,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2018,8,22]],"date-time":"2018-08-22T00:00:00Z","timestamp":1534896000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"NSFC","doi-asserted-by":"publisher","award":["No. 21505005 and 61703152"],"award-info":[{"award-number":["No. 21505005 and 61703152"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004735","name":"Hunan Provincial Natural Science Foundation","doi-asserted-by":"publisher","award":["No. 2018JJ2424 and 2018JJ3134"],"award-info":[{"award-number":["No. 2018JJ2424 and 2018JJ3134"]}],"id":[{"id":"10.13039\/501100004735","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the National Key R&amp;D Program of China","award":["2017YFC1600306"],"award-info":[{"award-number":["2017YFC1600306"]}]},{"name":"the Huxiang Youth Talent Support Program","award":["2015RS4051"],"award-info":[{"award-number":["2015RS4051"]}]},{"name":"Project of Science and Technology Plan in Zhuzhou","award":["201706-201806"],"award-info":[{"award-number":["201706-201806"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A facile cuprous oxide nanoparticles functionalized electro-reduced graphene oxide modified glassy carbon electrode (denoted as Cu2O NPs-ERGO\/GCE) was fabricated via a simple physical adsorption and electrochemical reduction approach. Cyclic voltammetry and second-order derivative linear scan voltammetry were used to investigate the electrocatalysis oxidation of vanillin on the Cu2O NPs-ERGO\/GCE. The compound yielded a well-defined voltammetric response in 0.1 M H2SO4 at 0.916 V (vs. saturated calomel electrode (SCE)). A linear calibration graph was obtained in the concentration range of 0.1 \u03bcM to 10 \u03bcM and 10 \u03bcM to 100 \u03bcM, while the detection limit (S\/N = 3) is 10 nM. In addition, the Cu2O NPs-ERGO\/GCE presented well anti-interference ability, stability, and reproducibility. It was used to detect vanillin sensitively and rapidly in different commercial food products, and the results were in agreement with the values obtained by high performance liquid chromatography.<\/jats:p>","DOI":"10.3390\/s18092762","type":"journal-article","created":{"date-parts":[[2018,8,23]],"date-time":"2018-08-23T03:00:46Z","timestamp":1534993246000},"page":"2762","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":49,"title":["Rapid and Sensitive Determination of Vanillin Based on a Glassy Carbon Electrode Modified with Cu2O-Electrochemically Reduced Graphene Oxide Nanocomposite Film"],"prefix":"10.3390","volume":"18","author":[{"given":"Jingheng","family":"Ning","sequence":"first","affiliation":[{"name":"School of Chemistry and Biological Engineering, Changsha University of Science &amp; Technology, Changsha 410114, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9849-7953","authenticated-orcid":false,"given":"Quanguo","family":"He","sequence":"additional","affiliation":[{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Luo","sequence":"additional","affiliation":[{"name":"School of Chemistry and Biological Engineering, Changsha University of Science &amp; Technology, Changsha 410114, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Biological Engineering, Changsha University of Science &amp; Technology, Changsha 410114, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donglin","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Chemistry and Biological Engineering, Changsha University of Science &amp; Technology, Changsha 410114, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianhui","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Biological Engineering, Changsha University of Science &amp; Technology, Changsha 410114, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Liu","sequence":"additional","affiliation":[{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9458-469X","authenticated-orcid":false,"given":"Guangli","family":"Li","sequence":"additional","affiliation":[{"name":"Hunan Key Laboratory of Biomedical Nanomaterials and Devices, School of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2018,8,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1821","DOI":"10.1016\/j.foodchem.2013.04.085","article-title":"Determination of vanillin in commercial food product by adsorptive stripping voltammetry using a boron-doped diamond electrode","volume":"141","year":"2013","journal-title":"Food Chem."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.1016\/j.foodchem.2006.03.004","article-title":"A simple and rapid HPLC technique for vanillin determination in alcohol extract","volume":"101","author":"Waliszewski","year":"2006","journal-title":"Food Chem."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"2882","DOI":"10.1021\/jf990561d","article-title":"Determination of vanillin in orange, grapefruit, tangerine, lemon, and lime juices using GC\u2013Olfactometry and GC\u2013MS\/MS","volume":"48","author":"Goodner","year":"2000","journal-title":"J. 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