{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,18]],"date-time":"2026-04-18T05:14:18Z","timestamp":1776489258336,"version":"3.51.2"},"reference-count":46,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2022,6,13]],"date-time":"2022-06-13T00:00:00Z","timestamp":1655078400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Science Foundation of Hunan Province","award":["2020JJ4346"],"award-info":[{"award-number":["2020JJ4346"]}]},{"name":"Natural Science Foundation of Hunan Province","award":["20K063"],"award-info":[{"award-number":["20K063"]}]},{"name":"Natural Science Foundation of Hunan Province","award":["2019JGYB130"],"award-info":[{"award-number":["2019JGYB130"]}]},{"name":"the Foundation of Department of Education of Hunan Province","award":["2020JJ4346"],"award-info":[{"award-number":["2020JJ4346"]}]},{"name":"the Foundation of Department of Education of Hunan Province","award":["20K063"],"award-info":[{"award-number":["20K063"]}]},{"name":"the Foundation of Department of Education of Hunan Province","award":["2019JGYB130"],"award-info":[{"award-number":["2019JGYB130"]}]},{"name":"Degree &amp; Postgraduate Education Reform Project of Hunan Province","award":["2020JJ4346"],"award-info":[{"award-number":["2020JJ4346"]}]},{"name":"Degree &amp; Postgraduate Education Reform Project of Hunan Province","award":["20K063"],"award-info":[{"award-number":["20K063"]}]},{"name":"Degree &amp; Postgraduate Education Reform Project of Hunan Province","award":["2019JGYB130"],"award-info":[{"award-number":["2019JGYB130"]}]},{"name":"Foundation of Yunnan Key Laboratory of Tobacco Chemistry, R&amp;D Center of China Tobacco Yunnan Industrial Co., Ltd.","award":["2020JJ4346"],"award-info":[{"award-number":["2020JJ4346"]}]},{"name":"Foundation of Yunnan Key Laboratory of Tobacco Chemistry, R&amp;D Center of China Tobacco Yunnan Industrial Co., Ltd.","award":["20K063"],"award-info":[{"award-number":["20K063"]}]},{"name":"Foundation of Yunnan Key Laboratory of Tobacco Chemistry, R&amp;D Center of China Tobacco Yunnan Industrial Co., Ltd.","award":["2019JGYB130"],"award-info":[{"award-number":["2019JGYB130"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A sensitive simultaneous electroanalysis of phytohormones indole-3-acetic acid (IAA) and salicylic acid (SA) based on a novel copper nanoparticles-chitosan film-carbon nanoparticles-multiwalled carbon nanotubes (CuNPs-CSF-CNPs-MWCNTs) composite was reported. CNPs were prepared by hydrothermal reaction of chitosan. Then the CuNPs-CSF-CNPs-MWCNTs composite was facilely prepared by one-step co-electrodeposition of CuNPs and CNPs fixed chitosan residues on modified electrode. Scanning electron microscope (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and linear sweep voltammetry (LSV) were used to characterize the properties of the composite. Under optimal conditions, the composite modified electrode had a good linear relationship with IAA in the range of 0.01\u201350 \u03bcM, and a good linear relationship with SA in the range of 4\u201330 \u03bcM. The detection limits were 0.0086 \u03bcM and 0.7 \u03bcM (S\/N = 3), respectively. In addition, the sensor could also be used for the simultaneous detection of IAA and SA in real leaf samples with satisfactory recovery.<\/jats:p>","DOI":"10.3390\/s22124476","type":"journal-article","created":{"date-parts":[[2022,6,13]],"date-time":"2022-06-13T22:00:38Z","timestamp":1655157638000},"page":"4476","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["One-Step Co-Electrodeposition of Copper Nanoparticles-Chitosan Film-Carbon Nanoparticles-Multiwalled Carbon Nanotubes Composite for Electroanalysis of Indole-3-Acetic Acid and Salicylic Acid"],"prefix":"10.3390","volume":"22","author":[{"given":"Yiwen","family":"Kuang","sequence":"first","affiliation":[{"name":"College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mengxue","family":"Li","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shiyu","family":"Hu","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lu","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhanning","family":"Liang","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiaqi","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongmei","family":"Jiang","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoyun","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7616-0770","authenticated-orcid":false,"given":"Zhaohong","family":"Su","sequence":"additional","affiliation":[{"name":"College of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,6,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2023","DOI":"10.1007\/s10008-014-2695-5","article-title":"Water-dispersed carboxymethyl cellulose-montmorillonite-single walled carbon nanotube composite with enhanced sensing performance for simultaneous voltammetric determination of two trace phytohormones","volume":"19","author":"Lu","year":"2015","journal-title":"J. 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