Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
Colorimetric analysis of sulfate-reducing bacterial DNA based on catalytic hemin/G-quadruplex loaded rigid DNA triangle | |
Zhou, Yanan1,2,3,4; Zeng, Yan1,2,3; Wang, Peng1,2; Qi, Peng1,2,3; Sun, Yan1,2,3; Zhang, Dun1,2,3 | |
2023-09-01 | |
发表期刊 | SENSORS AND ACTUATORS B-CHEMICAL |
卷号 | 390页码:8 |
通讯作者 | Zeng, Yan(zengyan@qdio.ac.cn) ; Zhang, Dun(zengyan@qdio.ac.cn) |
摘要 | Here a colorimetric sensing platform for sulfate-reducing bacterial DNA analysis was described by using a catalytic hemin/G-quadruplex loaded rigid DNA triangle assembly. This two-dimensional rigid DNA triangle structure was assembled by target bacterial DNA and three hairpin beacon probes. As three tips of hairpin probes carry specific recognition sites for G-quadruplex formation, target bacterial DNA trigger the opening of hairpin probes, not only forming a steady rigid DNA triangle but also activating the hemin/G-quadruplex horseradish peroxidase mimicking DNAzyme. The resultant hemin/G-quadruplex loaded rigid DNA triangle assembly catalyzes a colorimetric reaction with the signal intensity correlated to target concentrations, achieving target bacterial DNA detection with a detection limit as low as 23.99 fM. We further analyzed actual bacteria with this system, by acquiring bacterial DNA including bacteria-specific sequences with polymerase chain reaction (PCR), with the detection limit down to 1 cfu/mL. The system shows good selectivity for the target and resistance to interference, highly stable performance for serum samples application, showing great potential for application in the fields of genetic analysis, environmental monitoring, and medical testing. |
关键词 | Rigid DNA triangle Hemin G-quadruplex Sulfate -reducing bacteria |
DOI | 10.1016/j.snb.2023.133854 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[41906037] ; National Natural Science Foundation of China[41876101] |
WOS研究方向 | Chemistry ; Electrochemistry ; Instruments & Instrumentation |
WOS类目 | Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation |
WOS记录号 | WOS:001010022200001 |
出版者 | ELSEVIER SCIENCE SA |
WOS关键词 | LABEL-FREE |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/182309 |
专题 | 海洋环境腐蚀与生物污损重点实验室 |
通讯作者 | Zeng, Yan; Zhang, Dun |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
第一作者单位 | 中国科学院海洋研究所 |
通讯作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Zhou, Yanan,Zeng, Yan,Wang, Peng,et al. Colorimetric analysis of sulfate-reducing bacterial DNA based on catalytic hemin/G-quadruplex loaded rigid DNA triangle[J]. SENSORS AND ACTUATORS B-CHEMICAL,2023,390:8. |
APA | Zhou, Yanan,Zeng, Yan,Wang, Peng,Qi, Peng,Sun, Yan,&Zhang, Dun.(2023).Colorimetric analysis of sulfate-reducing bacterial DNA based on catalytic hemin/G-quadruplex loaded rigid DNA triangle.SENSORS AND ACTUATORS B-CHEMICAL,390,8. |
MLA | Zhou, Yanan,et al."Colorimetric analysis of sulfate-reducing bacterial DNA based on catalytic hemin/G-quadruplex loaded rigid DNA triangle".SENSORS AND ACTUATORS B-CHEMICAL 390(2023):8. |
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