A label-free fluorescent sensor for Pb2+ based on G-quadruplex and graphene oxide

作者: Yunfeng Bai , Lu Zhao , Zezhong Chen , Haiyan Wang , Feng Feng

DOI: 10.1039/C4AY01389A

关键词: OxideGrapheneDNAConformational changeOligonucleotideNanotechnologyCombinatorial chemistryLabel freeChemistryG-quadruplexFluorescence

摘要: A label-free sensitive and selective fluorescent sensor for Pb2+ was developed based on target-induced conformational change of an oligonucleotide the difference in affinity graphene oxide unstructured G-quadruplex DNA.

参考文章(58)
Lin Liu, Wenting Liu, Tingting Hong, Xiaocheng Weng, Qianqian Zhai, Xiang Zhou, Ag+ and cysteine detection by Ag+–guanine interaction based on graphene oxide and G-quadruplex DNA Analytical Methods. ,vol. 4, pp. 1935- 1939 ,(2012) , 10.1039/C2AY25362C
Feng Li, Yan Feng, Can Zhao, Bo Tang, Crystal violet as a G-quadruplex-selective probe for sensitive amperometric sensing of lead. Chemical Communications. ,vol. 47, pp. 11909- 11911 ,(2011) , 10.1039/C1CC15023E
Yan Lu, Xiang Li, Gongke Wang, Wen Tang, A highly sensitive and selective optical sensor for Pb2+ by using conjugated polymers and label-free oligonucleotides Biosensors and Bioelectronics. ,vol. 39, pp. 231- 235 ,(2013) , 10.1016/J.BIOS.2012.07.045
Ting Fu, Xu-Hua Zhao, Hua-Rong Bai, Zi-Long Zhao, Rong Hu, Rong-Mei Kong, Xiao-Bing Zhang, Weihong Tan, Ru-Qin Yu, A superquenched DNAzyme-perylene complex: a convenient, universal and low-background strategy for fluorescence catalytic biosensors. Chemical Communications. ,vol. 49, pp. 6644- 6646 ,(2013) , 10.1039/C3CC43054E
Juewen Liu, Zehui Cao, Yi Lu, Functional Nucleic Acid Sensors Chemical Reviews. ,vol. 109, pp. 1948- 1998 ,(2009) , 10.1021/CR030183I
Juewen Liu, Yi Lu, None, Accelerated color change of gold nanoparticles assembled by DNAzymes for simple and fast colorimetric Pb2+ detection. Journal of the American Chemical Society. ,vol. 126, pp. 12298- 12305 ,(2004) , 10.1021/JA046628H
Juewen Liu, Yi Lu, None, A Colorimetric Lead Biosensor Using DNAzyme-Directed Assembly of Gold Nanoparticles Journal of the American Chemical Society. ,vol. 125, pp. 6642- 6643 ,(2003) , 10.1021/JA034775U