基于 CdIn2S4 光阳极信号放大的竞争性阴极光电化学传感器，用于检测群勃龙

IF 8 1区化学 Q1 CHEMISTRY, ANALYTICAL

Sensors and Actuators B: Chemical Pub Date : 2024-11-01 DOI:10.1016/j.snb.2024.136883

Jinkun Yuan, Xin Chen, Hongmin Ma, Zhongfeng Gao, Xiang Ren, Rui Xu, Dan Wu, Qin Wei

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引用次数: 0

摘要

以 CdIn2S4 为光电阳极，Cu2O/Au 为光电阴极，构建了一种灵敏高效的光电化学（PEC）传感器，用于定量监测群勃龙（TB）。选择性能优异的 CuSe 作为 TB 抗原（Ag）标记。TB 抗体（Ab）与 TB 或 Ag-CuSe 的竞争性结合将反映出光电流与 TB 浓度之间的相关性。结核抗体浓度越低，Ag-CuSe 与结核抗体的结合就越多，最终导致光电流增加。在最佳条件下，在 100 fg/mL 至 100 ng/mL 的范围内实现了对结核菌的灵敏检测，检测限（LOD）为 10.3 fg/mL。所构建的 PEC 传感器具有良好的选择性和稳定性。该方法为结核病的检测提供了一种可行的、有价值的途径，在环境分析中显示出巨大的潜力。

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A competitive cathodic photoelectrochemical sensor based on a signal amplification of CdIn2S4 photoanode for trenbolone detection

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.

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来源期刊

Sensors and Actuators B: Chemical 工程技术-电化学

CiteScore

14.60

自引率

11.90%

发文量

1776

审稿时长

3.2 months

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.