{"title":"A competitive cathodic photoelectrochemical sensor based on a signal amplification of CdIn2S4 photoanode for trenbolone detection","authors":"Jinkun Yuan, Xin Chen, Hongmin Ma, Zhongfeng Gao, Xiang Ren, Rui Xu, Dan Wu, Qin Wei","doi":"10.1016/j.snb.2024.136883","DOIUrl":null,"url":null,"abstract":"A sensitive and efficient photoelectrochemical (PEC) sensor formed with CdIn<sub>2</sub>S<sub>4</sub> as photoanode and Cu<sub>2</sub>O/Au as photocathode was constructed for the quantitative monitoring of trenbolone (TB). CuSe with excellent performance was chosen as TB antigen (Ag) label. The correlation between photocurrent and TB concentration will be reflected through the competitive combining of TB antibodies (Ab) with TB or Ag-CuSe. The lower the TB concentration, the more Ag-CuSe was connected to the Ab, which eventually resulted in an augmentation in photocurrent. Under optimal conditions, the sensitive detection of TB was realized within the range of 100 fg/mL to 100<!-- --> <!-- -->ng/mL with the limit of detection (LOD) of 10.3 fg/mL. The constructed PEC sensor possesses excellent selectivity and stability. This method provides a feasible and valuable way for detection of TB, showing great potential in environmental analysis.","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":null,"pages":null},"PeriodicalIF":8.0000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators B: Chemical","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1016/j.snb.2024.136883","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A sensitive and efficient photoelectrochemical (PEC) sensor formed with CdIn2S4 as photoanode and Cu2O/Au as photocathode was constructed for the quantitative monitoring of trenbolone (TB). CuSe with excellent performance was chosen as TB antigen (Ag) label. The correlation between photocurrent and TB concentration will be reflected through the competitive combining of TB antibodies (Ab) with TB or Ag-CuSe. The lower the TB concentration, the more Ag-CuSe was connected to the Ab, which eventually resulted in an augmentation in photocurrent. Under optimal conditions, the sensitive detection of TB was realized within the range of 100 fg/mL to 100 ng/mL with the limit of detection (LOD) of 10.3 fg/mL. The constructed PEC sensor possesses excellent selectivity and stability. This method provides a feasible and valuable way for detection of TB, showing great potential in environmental analysis.
期刊介绍：
Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.
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