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Direct Electrochemical Vibrio DNA Sensing Adopting Highly Stable Graphene-Flavin Mononucleotide Aqueous Dispersion Modified Interface
Yang, Tao1; Chen, Huaiyin1,2; Qiu, Zhiwei1; Yu, Renzhong1; Luo, Shizhong1; Li, Weihua2,3,4; Jiao, Kui1
2018-02-07
发表期刊ACS APPLIED MATERIALS & INTERFACES
卷号10期号:5页码:4540-4547
文章类型Article
摘要A biofunctionalized graphene nanohybrid was prepared by simultaneously sonicating graphene and riboflavin 5'-monophosphate sodium salt (FMNS). FMNS, as a biodispersant, showed an efficient stabilization for obtaining highly dispersed graphene nanosheets in an aqueous solution. Due to the superior dispersion of graphene and the excellent electrochemical redox activity of FMNS, a direct electro-chemical DNA sensor was fabricated by adopting the inherent electrochemical redox activity of graphene-FMNS (Gr-FMNS). The comparison between using traditional electrochemical indicator ([Fe(CN)(6)(3-/4-)) and using the self-signal of Gr-FMNS was fully conducted to study the DNA-sensing performance. The results indicate that the proposed DNA-sensing platform displays fine selectivity, high sensitivity, good stability, and reproducibility using either [Fe(CN)(6)](3-/4-) probe or the self-signal of Gr-FMNS. The two methods display the same level of detection limit: 7.4 X 10(-17) M (using [Fe(CN)(6)](3-4)-) and 8.3 X 10(-17) M (using self-signal), respectively, and the latter exhibits higher sensitivity. Furthermore, the sensing platform also can be applied for the DNA determination in real samples.
关键词Graphene Flavin Mononucleotide Graphene Aqueous Dispersion Self-signal Dna Sensing
DOI10.1021/acsami.7b18212
收录类别SCI
语种英语
WOS记录号WOS:000424851600020
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文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/154361
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, Shandong Prov Key Lab Biochem Anal, Key Lab Sensor Anal Tumor Marker,Educ Minist, Qingdao 266042, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266237, Peoples R China
4.Sun Yat Sen Univ, Sch Chem Engn & Technol, Zhuhai 519082, Peoples R China
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Yang, Tao,Chen, Huaiyin,Qiu, Zhiwei,et al. Direct Electrochemical Vibrio DNA Sensing Adopting Highly Stable Graphene-Flavin Mononucleotide Aqueous Dispersion Modified Interface[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(5):4540-4547.
APA Yang, Tao.,Chen, Huaiyin.,Qiu, Zhiwei.,Yu, Renzhong.,Luo, Shizhong.,...&Jiao, Kui.(2018).Direct Electrochemical Vibrio DNA Sensing Adopting Highly Stable Graphene-Flavin Mononucleotide Aqueous Dispersion Modified Interface.ACS APPLIED MATERIALS & INTERFACES,10(5),4540-4547.
MLA Yang, Tao,et al."Direct Electrochemical Vibrio DNA Sensing Adopting Highly Stable Graphene-Flavin Mononucleotide Aqueous Dispersion Modified Interface".ACS APPLIED MATERIALS & INTERFACES 10.5(2018):4540-4547.
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