Highly sensitive exonuclease III-assisted fluorometric determination of silver(I) based on graphene oxide and self-hybridization of cytosine-rich ss-DNA
作者： Mingjian Lang , Qian Li , Huimin Huang , Fei Yu , Qinhua Chen
DOI: 10.1007/S00604-016-1795-6
关键词:
摘要: We report on a method for selective fluorometric determination of Ag(I) based the use graphene oxide (GO) and by exploiting exonuclease III-assisted signal amplification. In presence Ag(I), self-hybridization cytosine-rich ss-DNA labeled with fluorescent tag FAM leads to formation ds-DNA that is cleaved catalytic action Exo III. absence ions, however, tagged adsorbed surface GO its fluorescence quenched. As result, induction process strong amplification fluorescence. The allows ions be determined in 1 250 nM concentration range, 0.1 detection limit. recoveries range from 93.3 105.1 %, RSDs <8.2 %.
springer.com
sci-hub.se 参考文章(35)
Yasuko Antoku, Fluorescent Polycytosine-Encapsulated Silver Nanoclusters Georgia Institute of Technology. ,(2007)
Ting Hou, Wei Li, Lianfang Zhang, Feng Li, A versatile and highly sensitive homogeneous electrochemical strategy based on the split aptamer binding-induced DNA three-way junction and exonuclease III-assisted target recycling. Analyst. ,vol. 140, pp. 5748- 5753 ,(2015) , 10.1039/C5AN01176K
Nurgul Karadas-Bakirhan, Ahmad Sarakbi, Marie Vandeput, Sibel A. Ozkan, Jean-Michel Kauffmann, Liquid Chromatography with Amperometric Detection at a Silver Based Detector for the Determination of Thiocompounds: Application to the Assay of Thiopurine Antimetabolites in Urine Analytical Chemistry. ,vol. 87, pp. 6730- 6735 ,(2015) , 10.1021/ACS.ANALCHEM.5B00879
Qiaosheng Pu, Qiaoyu Sun, Application of 2-mercaptobenzothiazole-modified silica gel to on-line preconcentration and separation of silver for its atomic absorption spectrometric determination The Analyst. ,vol. 123, pp. 239- 243 ,(1998) , 10.1039/A706135H
Xia Chen, Yinran Chen, Xiaodong Zhou, Jiming Hu, Detection of Ag⁺ ions and cysteine based on chelation actions between Ag⁺ ions and guanine bases. Talanta. ,vol. 107, pp. 277- 283 ,(2013) , 10.1016/J.TALANTA.2013.01.025
Peng Hu, Chengzhou Zhu, Lihua Jin, Shaojun Dong, An ultrasensitive fluorescent aptasensor for adenosine detection based on exonuclease III assisted signal amplification. Biosensors and Bioelectronics. ,vol. 34, pp. 83- 87 ,(2012) , 10.1016/J.BIOS.2012.01.022
Ziping Zhang, Jing Yan, A signal-on electrochemical biosensor for sensitive detection of silver ion based on alkanethiol–carbon nanotube-oligonucleotide modified electrodes Sensors and Actuators B-chemical. ,vol. 202, pp. 1058- 1064 ,(2014) , 10.1016/J.SNB.2014.06.061
Feng Xuan, Xiaoteng Luo, I-Ming Hsing, Conformation-Dependent Exonuclease III Activity Mediated by Metal Ions Reshuffling on Thymine-Rich DNA Duplexes for an Ultrasensitive Electrochemical Method for Hg2+ Detection Analytical Chemistry. ,vol. 85, pp. 4586- 4593 ,(2013) , 10.1021/AC400228Q
Wendan Pu, Huawen Zhao, Chengzhi Huang, Liping Wu, Dan Xua, Fluorescent detection of silver(I) and cysteine using SYBR Green I and a silver(I)-specific oligonucleotide Microchimica Acta. ,vol. 177, pp. 137- 144 ,(2012) , 10.1007/S00604-012-0763-Z
Carolin Völker, Inga Kämpken, Cathinka Boedicker, Jörg Oehlmann, Matthias Oetken, Toxicity of silver nanoparticles and ionic silver: Comparison of adverse effects and potential toxicity mechanisms in the freshwater clam Sphaerium corneum. Nanotoxicology. ,vol. 9, pp. 677- 685 ,(2015) , 10.3109/17435390.2014.963723