A dual-channel fusion sensing platform of multicolor polyaniline visual and self-powered photoelectrochemical detection of mcirocystin-RR

被引:3
|
作者
Du, Xiaojiao [1 ,2 ]
Zhu, Rongquan [1 ,2 ]
Zhang, Bing [1 ]
Ji, Xingyu [2 ]
Jiang, Xiaoyan [1 ]
Lian, Yuebin [1 ]
Sun, Jun [2 ]
机构
[1] Changzhou Inst Technol, Sch Photoelect Engn, Changzhou 213032, Jiangsu, Peoples R China
[2] Jiangsu Univ, Sch Elect & Informat Engn, Zhenjiang 212013, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
Dual; -channel; Self -powered aptasensor; Visualization; MC; -RR; PERFORMANCE; CATHODE; PANI;
D O I
10.1016/j.microc.2024.111097
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The focus of this work was to develop a novel dual-channel platform based on the multi-color electrochromic visualization and self-powered photoelectrochemical sensors for detection of microcystin-RR (MC-RR). On the one hand, utilizing the inhibited output performance of the sensing platform by MC-RR which was captured by the aptamer, the MC-RR concentration was quantified via the short-circuit current (Isc) value of the proposed sensing platform. On the other hand, the transfer of photoelectrons produced by the g-C3N4/ZnIn2S4 photoanode to the modified polyaniline (PANI) photocathode produced a multi-color change from bluish violet to yellowgreen, which was used to achieve visual signal readouts. Under optimal conditions, the Isc and the average color channel values showed a linear relationship with the logarithm of MC-RR concentration in the range of 104 - 102 nM and 5 x 10-4 - 102 nM, with the detection limits of - 3.3 x 10-5 nM and - 1.7 x 10-4 nM (S/N = 3), respectively. Meanwhile, the proposed dual-channel visualized self-powered platform had excellent reproducibility and stability, providing a prototype for the detection of MC-RR in real samples. The proposed sensing platform not only provided the diversity of signal readouts, but also enhanced the reliability and accuracy of the detection.
引用
收藏
页数:8
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