High-performance VS2 QDs-based type II heterostructured photoanode for ultrasensitive aptasensing of lysozyme
High-performance VS2 QDs-based type II heterostructured photoanode for ultrasensitive aptasensing of lysozyme
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基于高性能 VS2 量子点的 II 型异质结构光电阳极,用于溶菌酶的超灵敏适体传感
DOI:
10.1016/j.snb.2019.127411
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发表时间:
2020-02
期刊:
影响因子:
--
通讯作者:
Wenbo Song
中科院分区:
文献类型:
--
作者:
Jinling Zhang;Mengxiang Shang;Yao Gao;Jianyue Yan;Wenbo Song
High visible-light active materials with boosted photoelectric conversion efficiency are the key to fabricate high-performance photoelectrochemical (PEC) sensor. Herein, we report in-situ formation of VS2QDs-Bi2S3heterostructure for promising application in constructing PEC aptasensor. Dramatically enhanced photoelectric conversion capacity is verified by photoluminescence spectroscopy (PL), electrochemical impedance spectroscopy (EIS) and PEC measurements. The intrinsic metallic feature of VS2, efficient visible light absorption of Bi2S3nanotube, and well-aliened band structure between them are responsible to substantially enhanced photocurrent. By covalently linking 5′-NH2-terminated lysozyme (Lys) aptamer on the VS2QDs-Bi2S3heterostructure, a self-powered PEC aptasensor for Lys is constructed. Under optimal conditions, ultrasensitive and selective detection of Lys is established in a wide linear range of 3.5 pM-70 nM with good selectivity and stability. The detection limit is 1.1 pM. Trace monitoring Lys in biological systems is realized with desired accuracy and satisfactory recovery. This work illustrates the prospect of VS2QDs-based heterostructure for PEC sensing and possible photocatalytic applications.
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影响因子:
29.4
作者:
Rath, Arup K.;Bernechea, Maria;Konstantatos, Gerasimos
通讯作者:
Konstantatos, Gerasimos
DOI:
10.1016/j.snb.2019.03.071
发表时间:
2019-06
期刊:
Sensors and Actuators B: Chemical
影响因子:
--
作者:
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通讯作者:
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影响因子:
8.9
作者:
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通讯作者:
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影响因子:
27.8
作者:
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通讯作者:
Zhongfan Liu
影响因子:
9.5
作者:
Ruiying Yang;Xiaoxia Yan;Yanmei Li;Xiaohua Zhang;Jinhua Chen
通讯作者:
Ruiying Yang;Xiaoxia Yan;Yanmei Li;Xiaohua Zhang;Jinhua Chen