{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:11:14Z","timestamp":1760145074488,"version":"build-2065373602"},"reference-count":45,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,6,12]],"date-time":"2024-06-12T00:00:00Z","timestamp":1718150400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22106152","52072353","ZR2021QB059"],"award-info":[{"award-number":["22106152","52072353","ZR2021QB059"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22106152","52072353","ZR2021QB059"],"award-info":[{"award-number":["22106152","52072353","ZR2021QB059"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007129","name":"Natural Science Foundation of Shandong Province","doi-asserted-by":"publisher","award":["22106152","52072353","ZR2021QB059"],"award-info":[{"award-number":["22106152","52072353","ZR2021QB059"]}],"id":[{"id":"10.13039\/501100007129","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Copper ion (Cu2+) pollution poses a serious threat to marine ecology and fisheries. However, the complexity of seawater and its interference factors make the online detection of Cu2+ quite challenging. To address this issue, we introduce the concept of the photo-assisted adjustment barrier effect into electrochemical detection, using it as a driving force to generate electrochemical responses. The Schottky barrier demonstrates a remarkable regulatory influence on the electrochemical response under photoexcitation, facilitating the response through Cu2+ adsorption. We developed a 4-MBA-AuNPs\/CdS\/FTO composite that serves as a sensitive platform for Cu2+ detection, achieving a detection limit of 70 nM. Notably, the photo-assisted adjustment of the barrier effect effectively counters the interference posed by ions in seawater, ensuring accurate detection. Furthermore, the sensor exhibits a promising recovery rate (99.62\u2013104.9%) in real seawater samples, highlighting its practical applications. This innovative approach utilizing the photo-assisted adjustment barrier effect offers a promising path for developing electrochemical sensors that can withstand interference.<\/jats:p>","DOI":"10.3390\/s24123809","type":"journal-article","created":{"date-parts":[[2024,6,13]],"date-time":"2024-06-13T06:23:11Z","timestamp":1718259791000},"page":"3809","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Surface Plasmon Resonance-Enhanced CdS\/FTO Heterojunction for Cu2+ Detection"],"prefix":"10.3390","volume":"24","author":[{"given":"Feng","family":"Chen","sequence":"first","affiliation":[{"name":"School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingfu","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Minggang","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ye","family":"Ma","sequence":"additional","affiliation":[{"name":"School of Material Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1696","DOI":"10.3389\/fimmu.2020.01696","article-title":"oprC Impairs Host Defense by Increasing the Quorum-Sensing-Mediated Virulence of Pseudomonas aeruginosa","volume":"11","author":"Gao","year":"2020","journal-title":"Front. 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