A label-free protamine-assisted colorimetric sensor for highly sensitive detection of S1 nuclease activity
文献类型：期刊论文
| 作者 | Wen, Jiahui; Liu, Yongming; Li, Jingwen; Lin, Hao; Zheng, Yiran; Chen, Yan; Fu, Xiuli; Chen, Lingxin
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| 刊名 | ANALYST
 |
| 出版日期 | 2020-04-07 |
| 卷号 | 145期号:7页码:2774-2778 |
| 关键词 | SINGLE-STRANDED-DNA TURN-ON DETECTION COPPER NANOPARTICLES ENZYMATIC CLEAVAGE OXIDATIVE DAMAGE ASSAY FLUORESCENCE INHIBITION GOLD UNIVERSAL |
| DOI | 10.1039/d0an00060d |
| 产权排序 | [Wen, Jiahui ; Liu, Yongming ; Li, Jingwen ; Lin, Hao ; Zheng, Yiran ; Fu, Xiuli] Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China ; [Chen, Yan] Shandong Agr & Engn Univ, Sch Resources & Environm Engn, Jinan 250100, Peoples R China ; [Chen, Lingxin] Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China ; [Chen, Lingxin] Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | A label-free, sensitive, simple and general colorimetric method was reported to monitor S1 nuclease activity based on protamine-assisted aggregation of gold nanoparticles (AuNPs). Here, protamine, a linear polycation, was used as a medium for causing the aggregation of negatively charged AuNPs by electrostatic interactions, resulting in changes in the surface plasmon resonance (SPR) absorption bands as well as the color of AuNPs. Here, the AuNPs were employed as an indicator to detect the level of S1 nuclease in the solution. Substrate DNA could be cleaved into small fragments by the specific S1 nuclease, which effectively prevents the electrostatic interaction between DNA and protamine and thus facilitates the interaction between protamine and AuNPs. The quantitative analysis of S1 nuclease activity can be performed via directly measuring the changes in the absorption spectra of the AuNPs. Using S1 nuclease as a model analyte, the limit of detection was estimated to be 1.0 x 10(-4) U mL(-1). Furthermore, the proposed concept has been successfully applied in S1 nuclease analysis of serum samples, offering an ultrasensitive strategy for the speedy detection of the nuclease activity and providing a new avenue for high-throughput screening of nucleases and drugs with potential inhibition properties. |
| WOS关键词 | SINGLE-STRANDED-DNA ; TURN-ON DETECTION ; COPPER NANOPARTICLES ; ENZYMATIC CLEAVAGE ; OXIDATIVE DAMAGE ; ASSAY ; FLUORESCENCE ; INHIBITION ; GOLD ; UNIVERSAL |
| 语种 | 英语 |
| WOS记录号 | WOS:000526825700033 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China [21705139, 61801274, 21976209] ; Natural Science Foundation of Shandong Province in ChinaNatural Science Foundation of Shandong Province [ZR2017BB026] ; Taishan Scholar Project Special Funding [ts20190962] |
| 源URL | [http://ir.yic.ac.cn/handle/133337/25053]  |
| 专题 | 烟台海岸带研究所_山东省海岸带环境工程技术研究中心 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 作者单位 | 1.Shandong Agr & Engn Univ, Sch Resources & Environm Engn, Jinan 250100, Peoples R China; 2.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; 4.Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Wen, Jiahui,Liu, Yongming,Li, Jingwen,et al. A label-free protamine-assisted colorimetric sensor for highly sensitive detection of S1 nuclease activity[J]. ANALYST,2020,145(7):2774-2778. |
| APA | Wen, Jiahui.,Liu, Yongming.,Li, Jingwen.,Lin, Hao.,Zheng, Yiran.,...&Chen, Lingxin.(2020).A label-free protamine-assisted colorimetric sensor for highly sensitive detection of S1 nuclease activity.ANALYST,145(7),2774-2778. |
| MLA | Wen, Jiahui,et al."A label-free protamine-assisted colorimetric sensor for highly sensitive detection of S1 nuclease activity".ANALYST 145.7(2020):2774-2778. |
入库方式： OAI收割
来源：烟台海岸带研究所
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