Aptamer based photoelectrochemical determination of tetracycline using a spindle-like ZnO-CdS@Au nanocomposite
Zhang, Xiaoping1; Zhang, Ruirui2; Yang, Aijun3; Wang, Qin3; Kong, Rongmei1; Qu, Fengli1
2017-11-01
发表期刊MICROCHIMICA ACTA
ISSN0026-3672
卷号184期号:11页码:4367-4374
摘要

The authors have synthesized spindle-like ZnO nanorods closely anchored to CdS nanoparticles (NPs) placed on gold NPs (ZnO-CdS@Au). It is shown that the ZnO-CdS@Au nanocomposite can serve as a photoactive material for use in photoelectrochemical (PEC) detection by efficiently absorbing light and then promoting electron transfer. A visible light-driven PEC detection platform for tetracycline (TET) was fabricated by placing the nanocomposite on an ITO and immobilizing the TET-binding aptamer as biorecognition element. PEC can be quantified by applying a bias potential of + 0.4 V (vs. SCE) and visible light irradiation. The aptamer on the electrode specifically captures the TET present in the solution to produce a restored photocurrent signal through the reaction between the captured TET and the photogenerated holes. The electrode has a linear response in the 50 to 200 nM TET concentration range, with a 4.5 nM detection limit (at an S/N ratio of 3). In our perception, this novel PEC detection strategy based on ZnO-CdS@Au nanocomposite demonstrated an ultrasensitive method for TET detection with high selectivity and good stability.

关键词Nanocomposite Zno Nanorods Gold Nanoparticles Zno-cds@au Photoelectrochemical Aptamer Tetracycline
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s00604-017-2477-8
收录类别SCI
语种英语
关键词[WOS]LIQUID-CHROMATOGRAPHY ; CARBON NANOTUBES ; REDUCED GRAPHENE ; HIGH-PERFORMANCE ; NANOPARTICLES ; DNA ; APTASENSOR ; BIOSENSOR ; OXIDE ; FILM
WOS研究方向Chemistry
WOS类目Chemistry, Analytical
项目资助者National Natural Science Foundation of China(21375076) ; Key Research and Development Program of Shandong Province(2015GSF121031) ; Natural Science Foundation Projects of Shandong Province(ZR2012HL002 ; Project of University-industry Cooperation of Jining City(2014018) ; ZR2015HL022)
WOS记录号WOS:000412901100017
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23279
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
3.Jining Med Univ, Affiliated Hosp, Ctr Reprod Med, Jining 272029, Shandong, Peoples R China
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Zhang, Xiaoping,Zhang, Ruirui,Yang, Aijun,et al. Aptamer based photoelectrochemical determination of tetracycline using a spindle-like ZnO-CdS@Au nanocomposite[J]. MICROCHIMICA ACTA,2017,184(11):4367-4374.
APA Zhang, Xiaoping,Zhang, Ruirui,Yang, Aijun,Wang, Qin,Kong, Rongmei,&Qu, Fengli.(2017).Aptamer based photoelectrochemical determination of tetracycline using a spindle-like ZnO-CdS@Au nanocomposite.MICROCHIMICA ACTA,184(11),4367-4374.
MLA Zhang, Xiaoping,et al."Aptamer based photoelectrochemical determination of tetracycline using a spindle-like ZnO-CdS@Au nanocomposite".MICROCHIMICA ACTA 184.11(2017):4367-4374.
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