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Synthesis of Thin-Layered Molybdenum Disulfide-Based Polyaniline Nanointerfaces for Enhanced Direct Electrochemical DNA Detection
Yang, Tao1; Meng, Le1; Chen, Huaiyin1; Luo, Shizhong1; Li, Weihua2,3; Jiao, Kui1
2016-04-08
发表期刊ADVANCED MATERIALS INTERFACES
卷号3期号:7
文章类型Article
摘要The low electronic conductivity limits the application of molybdenum disulfide (MoS2) in electrochemical sensing field, let alone the label-free and self-signal amplification DNA sensing. Aiming at this problem, a novel polyaniline-molybdenum disulfide (PANI-MoS2) nanocomposite through a facile oxidation polymerization aniline monomer on the thin-layer MoS2 matrix is prepared, which is preobtained via a simple ultrasonic exfoliation method. It is generally appreciated that conducting polymers, e.g., polyaniline (PANI), can work as a direct transducer based on themselves-signal without any label or indicator. Moreover, MoS2 not only serves as an excellent conductive skeleton provided a high electrolytic accessible surface area for redox-active PANI, but also supports a direct path for electron transfer. Therefore, the hybrid of PANI and MoS2 exhibits superior electrochemical performance to pure PANI and MoS2, and can be considered as a superior candidate for direct and label-free electrochemical DNA sensing. A series of experiments are performed to investigate the effect of synthetic conditions (component, dosage of MoS2, and reaction time) on probe DNA (pDNA) immobilization and hybridization adopting the PANI self-signal as the measure signal. The results show that the dosage of MoS2 has a more influence on pDNA immobilization and hybridization.
DOI10.1002/admi.201500700
收录类别SCI
语种英语
WOS记录号WOS:000374153000009
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/131012
专题海洋腐蚀与防护研究发展中心
作者单位1.Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Key Lab Sensor Anal Tumor Marker, Shandong Prov Key Lab Biochem Anal,Educ Minist, Qingdao 266042, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Qingdao Technol Univ, Cooperat Innovat Ctr Engn Construct & Safety Shan, Qingdao 266033, Peoples R China
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GB/T 7714
Yang, Tao,Meng, Le,Chen, Huaiyin,et al. Synthesis of Thin-Layered Molybdenum Disulfide-Based Polyaniline Nanointerfaces for Enhanced Direct Electrochemical DNA Detection[J]. ADVANCED MATERIALS INTERFACES,2016,3(7).
APA Yang, Tao,Meng, Le,Chen, Huaiyin,Luo, Shizhong,Li, Weihua,&Jiao, Kui.(2016).Synthesis of Thin-Layered Molybdenum Disulfide-Based Polyaniline Nanointerfaces for Enhanced Direct Electrochemical DNA Detection.ADVANCED MATERIALS INTERFACES,3(7).
MLA Yang, Tao,et al."Synthesis of Thin-Layered Molybdenum Disulfide-Based Polyaniline Nanointerfaces for Enhanced Direct Electrochemical DNA Detection".ADVANCED MATERIALS INTERFACES 3.7(2016).
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