Ultra-sensitive fluorescent and colorimetric detection of UO22+ based on dual enzyme-free amplification strategies
文献类型:期刊论文
作者 | Yun, Wen1; Wu, Hong1; Liu, Xingyan1; Zhong, Haixia1; Fu, Min1; Yang, Lizhu2; Huang, Yu3![]() |
刊名 | SENSORS AND ACTUATORS B-CHEMICAL
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出版日期 | 2018-02-01 |
卷号 | 255页码:1920-1926 |
关键词 | DNAzyme Gold nanoparticles Fluorescent Colorimetric Dual amplification |
ISSN号 | 0925-4005 |
DOI | 10.1016/j.snb.2017.08.205 |
通讯作者 | Yun, W (reprint author), Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & Funct Organ Mol, Chongqing 400067, Peoples R China. ; Yang, LZ (reprint author), Wenzhou Med Univ, Sch Pharmaceut Sci, Wenzhou 325035, Zhejiang, Peoples R China. |
英文摘要 | A novel fluorescent and colorimetric strategy with enzyme-free dual amplification was developed for ultra-sensitively detection of uranyl in river waters samples. The enzyme-strand recycling and hairpin catalytic assembly (HCA) reaction were used as dual enzyme-free amplification strategies. Three hairpins labeled with fluorophore can absorb on the surface of gold nanoparticles (AuNPs) to prevent them from aggregation in salt solution and quench the fluorescent signal simultaneously. In the presence of UO22+, the HCA reaction between hairpins was induced to form rigid DNA triangles, resulting in the aggregation of AuNPs with a red to blue color change and a "turn-on" fluorescent signal. The limit of detection was as low as 0.1 pM. Importantly, this strategy provided colorimetric and fluorescent dual signals for lower false-positives and higher anti-interference ability. It was successfully used for detection of uranyl in real waters samples. (C) 2017 Elsevier B.V. All rights reserved. |
资助项目 | National Natural Science Foundation of China[31300819] ; Project of Wenzhou Science &Technology Bureau[S20150012] ; Opening Project of Zhejiang Provincial Top Key Discipline of Pharmaceutical Sciences[201712] ; Open Research Fund[CQCM-2016-05] ; Science and Technology Research Program of Chongqing Municipal Education Commission[KJ1706156] ; Startup Foundation of Chongqing Technology and Business University[1756001] ; funds of China Academy of Engineering Physics[TCSQ2016203] ; Open Research Fund Program of Key Laboratory of Reservoir Aquatic Environment of CAS |
WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
语种 | 英语 |
WOS记录号 | WOS:000414319900089 |
出版者 | ELSEVIER SCIENCE SA |
源URL | [http://172.16.51.4:88/handle/2HOD01W0/80] ![]() |
专题 | 太赫兹技术研究中心 |
通讯作者 | Yun, Wen; Yang, Lizhu |
作者单位 | 1.Chongqing Technol & Business Univ, Coll Environm & Resources, Chongqing Key Lab Catalysis & Funct Organ Mol, Chongqing 400067, Peoples R China 2.Wenzhou Med Univ, Sch Pharmaceut Sci, Wenzhou 325035, Zhejiang, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm CAS, Chongqing 400714, Peoples R China |
推荐引用方式 GB/T 7714 | Yun, Wen,Wu, Hong,Liu, Xingyan,et al. Ultra-sensitive fluorescent and colorimetric detection of UO22+ based on dual enzyme-free amplification strategies[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,255:1920-1926. |
APA | Yun, Wen.,Wu, Hong.,Liu, Xingyan.,Zhong, Haixia.,Fu, Min.,...&Huang, Yu.(2018).Ultra-sensitive fluorescent and colorimetric detection of UO22+ based on dual enzyme-free amplification strategies.SENSORS AND ACTUATORS B-CHEMICAL,255,1920-1926. |
MLA | Yun, Wen,et al."Ultra-sensitive fluorescent and colorimetric detection of UO22+ based on dual enzyme-free amplification strategies".SENSORS AND ACTUATORS B-CHEMICAL 255(2018):1920-1926. |
入库方式: OAI收割
来源:重庆绿色智能技术研究院
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