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Light-Broadened Faradaic Regime of Organic Electrochemical Transistors for Accelerated Amperometric Biodetection

文献类型：期刊论文

作者Ju, Peng5,6; Jiang, Xingwu3,4; Xu, Yi-Tong3; Hu, Jin3; Chi, Jingtian5,6; Jiang, Tiantong5,6; Lu, Zhaoxia1,2; Zhai, Xiaofan2,4; Zhao, Wei-Wei3
刊名ADVANCED FUNCTIONAL MATERIALS
出版日期2024-08-29
页码7
关键词amperometric detection DNA Walker faradic regime organic electrochemical transistors p-n heterojunction
ISSN号1616-301X
DOI10.1002/adfm.202409153
通讯作者Zhai, Xiaofan(zhaixf@qdio.ac.cn) ; Zhao, Wei-Wei(zww@nju.edu.cn)
英文摘要Faradaic-mode organic electrochemical transistors (OECT) are promising but usually need hundreds of millivolts to sustain redox reactions. Decrease or even removal of the voltage penalty is highly desirable. Herein, the Faradic regime of the OECT is broadened toward zero bias by integrating a p-n heterojunction of Cu2S-diethylenetriamine (DETA)-CdS for efficient photogating of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) channel. Upon light illumination, it is found that an obvious Faradaic process is evolved at the gate/electrolyte interface under zero gate bias, suggesting the potential of sensitive amperometric biodetection with enhanced signal resolution. At the Cu2S-DETA-CdS/liquid interface, a biosensing process is introduced, combining with a DNA walker and enzymatic biocatalytic precipitation to produce a target-dependent diffusion barrier, modulating the amperometric output with enhanced signal variations under light irradiation compared to that in the dark. The proposed system achieves the desired analytical performance for representative target miRNA-10b with a low detection limit of 0.21 fM. This work features a light-mediated OECT device with enhanced signal resolution and provides new operational paradigms and insights for novel optoelectronics interfacing with biological systems. The organic electrochemical transistor (OECT) is rationally integrated with a p-n heterojunction of Cu2S-DETA-CdS with highly efficient light-electric conversion. The Faradaic regime of the OECT can thus be broadened toward zero gate bias under light illumination. Amperometric output with enhanced signal resolution can be obtained with the DNA walker and enzymatic biocatalytic precipitation. image
WOS关键词DNA
资助项目National Natural Science Foundation of China[42376204] ; Basic Scientific Fund for National Public Research Institutes of China[2019Y03] ; Open Fund of Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation[202203] ; Young Elite Scientists Sponsorship Program by CAST[YESS20210201]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:001303088000001
出版者WILEY-V C H VERLAG GMBH
源URL[http://ir.qdio.ac.cn/handle/337002/198185]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Zhai, Xiaofan; Zhao, Wei-Wei
作者单位1.Guangxi Univ, Coll Chem & Chem Engn, Nanning 530004, Peoples R China
2.Guangxi Acad Sci, Inst Marine Corros & Protect, 98 Dalin Rd, Nanning 530007, Peoples R China
3.Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210023, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
5.Minist Nat Resources, Inst Oceanog 1, Observat & Res Stn Bohai Ecocorridor Marine Biores, 6 Xianxialing Rd, Qingdao 266061, Peoples R China
6.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Ecoenvironm Sci & Technol, 6 Xianxialing Rd, Qingdao 266061, Peoples R China
推荐引用方式
GB/T 7714		 Ju, Peng,Jiang, Xingwu,Xu, Yi-Tong,et al. Light-Broadened Faradaic Regime of Organic Electrochemical Transistors for Accelerated Amperometric Biodetection[J]. ADVANCED FUNCTIONAL MATERIALS,2024:7.
APA Ju, Peng.,Jiang, Xingwu.,Xu, Yi-Tong.,Hu, Jin.,Chi, Jingtian.,...&Zhao, Wei-Wei.(2024).Light-Broadened Faradaic Regime of Organic Electrochemical Transistors for Accelerated Amperometric Biodetection.ADVANCED FUNCTIONAL MATERIALS,7.
MLA Ju, Peng,et al."Light-Broadened Faradaic Regime of Organic Electrochemical Transistors for Accelerated Amperometric Biodetection".ADVANCED FUNCTIONAL MATERIALS (2024):7.

入库方式： OAI收割

来源：海洋研究所

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