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Detection of trace Hg(2+) via induced circular dichroism of DNA wrapped around single-walled carbon nanotubes
Gao XY(高学云); Xing GM(邢更妹); Liu R(刘茹); Jing L(荆隆); Zhao F(赵峰); Ye C(叶昶); Yuan H(袁慧); Zhao YL(赵宇亮); Gao, XY; Xing, GM; Yang, YL; Shi, XL; Liu, R; Chu, WG; Jing, L; Zhao, F; Ye, C; Yuan, H; Fang, XH; Wang, C; Zhao, YL
2008
发表期刊JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷号130期号:29页码:9190-+
通讯作者[Gao, Xueyun ; Xing, Gengmei ; Liu, Ru ; Jing, Long ; Zhao, Feng ; Ye, Chang ; Yuan, Hui ; Zhao, Yuliang] Inst High Energy Phys, Lab Bioenvironm Effects Nanomat & Nanosafety, Beijing 100049, Peoples R China ; [Yang, Yanlian ; Chu, Weiguo ; Wang, Chen ; Zhao, Yuliang] Natl Ctr Nanosci & Technol, Beijing 100080, Peoples R China ; [Shi, Xiaoli ; Fang, Xiaohong] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100080, Peoples R China
摘要The strongly induced circular dichroism (ICD) signals of DNA wrapped around single-walled carbon nanotubes I are shown by the Synchrotron Radiation Facility. In solution, trace amounts of Hg ions have a strong affinity to bind the nucleic bases of DNA-SWCNTs via a pseudo-first-order kinetic reaction. The Hg binding to the bases of DNA results in partial DNA disassociation from the SWCNTs. Such disassociation of DNA from the SWCNTs will decrease the coupling effects of the transition dipole moments between DNA and SWCNTs, thus inducing the ICD signal of DNA-SWCNTs to decrease significantly. Herein, the ICD of DNA-SWCNTs is applied to detect the concentration of Hg ions at.
文章类型Article
学科领域Chemistry
研究领域[WOS]Chemistry
DOI10.1021/ja801793k
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语种英语
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000257796500006
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被引频次:85[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240158
专题多学科研究中心
加速器中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Gao XY,Xing GM,Liu R,et al. Detection of trace Hg(2+) via induced circular dichroism of DNA wrapped around single-walled carbon nanotubes[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2008,130(29):9190-+.
APA 高学云.,邢更妹.,刘茹.,荆隆.,赵峰.,...&Zhao, YL.(2008).Detection of trace Hg(2+) via induced circular dichroism of DNA wrapped around single-walled carbon nanotubes.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,130(29),9190-+.
MLA 高学云,et al."Detection of trace Hg(2+) via induced circular dichroism of DNA wrapped around single-walled carbon nanotubes".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 130.29(2008):9190-+.
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