A reversible fluorescence nanoswitch based on carbon quantum dots nanoassembly for detection of pyrophosphate ion
文献类型：期刊论文
| 作者 | Chai, Lu Jing1; Zhou, Jin2; Feng, Hui1; Lin, Jing Jing1; Qian, Zhao Sheng1 |
| 刊名 | SENSORS AND ACTUATORS B-CHEMICAL
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 220页码:138-145 |
| 关键词 | Carbon quantum dots Pyrophosphate ion Fluorescence nanoswitch Nanoassembly |
| 英文摘要 | A convenient and reversible nanoswitch with the assistance of cerium ions based on aggregation and disaggregation of carbon quantum dots was developed to achieve highly sensitive detection of pyrophosphate ions. Two states including aggregation state and disaggregation state corresponding to fluorescence on and off signaling can be readily switched in a reversible way. The aggregation state is resulted from large nanoassembly formed by carbon quantum dots and cerium ions due to their strong complexation affinity. The disaggregation state comes from competitive combination between cerium ion and pyrophosphate ion. The PPi ion severs as the external chemical stimulus to CQDs/Ce(III) nanoassembly, and its quantity is responsive to fluorescence intensity of the sensing system. Quantitative evaluation of PPi in a broad range from 0.3 to 29.7 mu M with the detection limit of 0.1 mu M can be realized in this way. The PPi detection in human HeLa cells was also assessed, and fluorescence switching between ON and OFF can be readily observed in response to presence and absence of PPi. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28383]  |
| 专题 | 化学研究所_活体分析化学实验室 |
| 作者单位 | 1.Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321004, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chai, Lu Jing,Zhou, Jin,Feng, Hui,et al. A reversible fluorescence nanoswitch based on carbon quantum dots nanoassembly for detection of pyrophosphate ion[J]. SENSORS AND ACTUATORS B-CHEMICAL,2015,220:138-145. |
| APA | Chai, Lu Jing,Zhou, Jin,Feng, Hui,Lin, Jing Jing,&Qian, Zhao Sheng.(2015).A reversible fluorescence nanoswitch based on carbon quantum dots nanoassembly for detection of pyrophosphate ion.SENSORS AND ACTUATORS B-CHEMICAL,220,138-145. |
| MLA | Chai, Lu Jing,et al."A reversible fluorescence nanoswitch based on carbon quantum dots nanoassembly for detection of pyrophosphate ion".SENSORS AND ACTUATORS B-CHEMICAL 220(2015):138-145. |
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来源：化学研究所
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