Home

Citation: Du Jiang-Yan, Huang Xiao-Hua, Xu Fei, Xing Wei, Lu Tian-Hong. Effect of pH on the Interaction Mode between TH and CT-DNA[J]. Acta Physico-Chimica Sinica, ;2003, 19(11): 1064-1068. doi: 10.3866/PKU.WHXB20031116 shu

Effect of pH on the Interaction Mode between TH and CT-DNA

1.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun　130022; College of Chemistry and Environmental Science, Nanjing Normal University, Nanjing　210097

Received Date: 13 May 2003
Available Online: 15 November 2003

The effect of pH of solution on the interaction between TH(thionine) and CT-DNA was studied using electrochemical and spectroscopic methods. The electrochemical results indicated that the interaction between TH and CT-DNA is in the intercalative mode in the pH 7.2 phosphate buffer solution, but both intercalative and electrostatic modes exist in the pH 6.5 phosphate buffer solution. Fluorescence spectroscopic results showed that the fluorescence intensity of TH is efficiently quenched by CT-DNA bases. The quenching constant, KSV obtained from the Stern-Volmer equation for the pH 6.5 solution is larger than that for the pH 7.2 solution indicating that the interaction between TH and CT-DNA in the pH 6.5 solution is stronger than that in the pH 7.2 solution. The conclusion is confirmed by the results of CD spectroscopic measurements.
- Thionine;DNA;Electrochemical reaction;Fluorescence spectrum;　Circular dichroism
1. [1]
  Xiaofen GUAN , Yating LIU , Jia LI , Yiwen HU , Haiyuan DING , Yuanjing SHI , Zhiqiang WANG , Wenmin WANG . Synthesis, crystal structure, and DNA-binding of binuclear lanthanide complexes based on a multidentate Schiff base ligand. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2486-2496. doi: 10.11862/CJIC.20240122
2. [2]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395
3. [3]
  Chun-Lin Sun , Yaole Jiang , Yu Chen , Rongjing Guo , Yongwen Shen , Xinping Hui , Baoxin Zhang , Xiaobo Pan . Construction, Performance Testing, and Practical Applications of a Home-Made Open Fluorescence Spectrometer. University Chemistry, 2024, 39(5): 287-295. doi: 10.3866/PKU.DXHX202311096
4. [4]
  Liangzhen Hu , Li Ni , Ziyi Liu , Xiaohui Zhang , Bo Qin , Yan Xiong . A Green Chemistry Experiment on Electrochemical Synthesis of Benzophenone. University Chemistry, 2024, 39(6): 350-356. doi: 10.3866/PKU.DXHX202312001
5. [5]
  Chang Liu , Tao Wu , Lijiao Deng , Xuzi Li , Xin Fu , Shuzhen Liao , Wenjie Ma , Guoqiang Zou , Hai Yang . Programmed DNA walkers for biosensors. Chinese Chemical Letters, 2024, 35(9): 109307-. doi: 10.1016/j.cclet.2023.109307
6. [6]
  Lingbang Qiu , Jiangmin Jiang , Libo Wang , Lang Bai , Fei Zhou , Gaoyu Zhou , Quanchao Zhuang , Yanhua Cui . 原位电化学阻抗谱监测长寿命热电池Nb₁₂WO₃₃正极材料的高温双放电机制. Acta Physico-Chimica Sinica, 2025, 41(5): 100040-. doi: 10.1016/j.actphy.2024.100040
7. [7]
  Jinyao Du , Xingchao Zang , Ningning Xu , Yongjun Liu , Weisi Guo . Electrochemical Thiocyanation of 4-Bromoethylbenzene. University Chemistry, 2024, 39(6): 312-317. doi: 10.3866/PKU.DXHX202310039
8. [8]
  Zhongyan Cao , Youzhi Xu , Menghua Li , Xiao Xiao , Xianqiang Kong , Deyun Qian . Electrochemically Driven Denitrative Borylation and Fluorosulfonylation of Nitroarenes. University Chemistry, 2025, 40(4): 277-281. doi: 10.12461/PKU.DXHX202407017
9. [9]
  Caixia Lin , Zhaojiang Shi , Yi Yu , Jianfeng Yan , Keyin Ye , Yaofeng Yuan . Ideological and Political Design for the Electrochemical Synthesis of Benzoxathiazine Dioxide Experiment. University Chemistry, 2024, 39(2): 61-66. doi: 10.3866/PKU.DXHX202309005
10. [10]
  Shuhui Li , Rongxiuyuan Huang , Yingming Pan . Electrochemical Synthesis of 2,5-Diphenyl-1,3,4-Oxadiazole: A Recommended Comprehensive Organic Chemistry Experiment. University Chemistry, 2025, 40(5): 357-365. doi: 10.12461/PKU.DXHX202407028
11. [11]
  Shengbiao Zheng , Liang Li , Nini Zhang , Ruimin Bao , Ruizhang Hu , Jing Tang . Metal-Organic Framework-Derived Materials Modified Electrode for Electrochemical Sensing of Tert-Butylhydroquinone: A Recommended Comprehensive Chemistry Experiment for Translating Research Results. University Chemistry, 2024, 39(7): 345-353. doi: 10.3866/PKU.DXHX202310096
12. [12]
  Jia-Li Xie , Tian-Jin Xie , Yu-Jie Luo , Kai Mao , Cheng-Zhi Huang , Yuan-Fang Li , Shu-Jun Zhen . Octopus-like DNA nanostructure coupled with graphene oxide enhanced fluorescence anisotropy for hepatitis B virus DNA detection. Chinese Chemical Letters, 2024, 35(6): 109137-. doi: 10.1016/j.cclet.2023.109137
13. [13]
  Yang Lv , Yingping Jia , Yanhua Li , Hexiang Zhong , Xinping Wang . Integrating the Ideological Elements with the “Chemical Reaction Heat” Teaching. University Chemistry, 2024, 39(11): 44-51. doi: 10.12461/PKU.DXHX202402059
14. [14]
  Hong Yan , Wenfeng Wang , Keyin Ye , Yaofeng Yuan . Organic Electrochemistry and Its Integration into Chemistry Teaching. University Chemistry, 2025, 40(5): 301-310. doi: 10.12461/PKU.DXHX202407027
15. [15]
  Yang Qin , Jiangtian Li , Xuehao Zhang , Kaixuan Wan , Heao Zhang , Feiyang Huang , Limei Wang , Hongxun Wang , Longjie Li , Xianjin Xiao . Toeless and reversible DNA strand displacement based on Hoogsteen-bond triplex. Chinese Chemical Letters, 2024, 35(5): 108826-. doi: 10.1016/j.cclet.2023.108826
16. [16]
  Xiaohong Wen , Mei Yang , Lie Li , Mingmin Huang , Wei Cui , Suping Li , Haiyan Chen , Chen Li , Qiuping Guo . Enzymatically controlled DNA tetrahedron nanoprobes for specific imaging of ATP in tumor. Chinese Chemical Letters, 2024, 35(8): 109291-. doi: 10.1016/j.cclet.2023.109291
17. [17]
  Jingwen Zhao , Jianpu Tang , Zhen Cui , Limin Liu , Dayong Yang , Chi Yao . A DNA micro-complex containing polyaptamer for exosome separation and wound healing. Chinese Chemical Letters, 2024, 35(9): 109303-. doi: 10.1016/j.cclet.2023.109303
18. [18]
  Zhongyu Wang , Lijun Wang , Huaixin Zhao . DNA-based nanosystems to generate reactive oxygen species for nanomedicine. Chinese Chemical Letters, 2024, 35(11): 109637-. doi: 10.1016/j.cclet.2024.109637
19. [19]
  Jiangshan Xu , Weifei Zhang , Zhengwen Cai , Yong Li , Long Bai , Shaojingya Gao , Qiang Sun , Yunfeng Lin . Tetrahedron DNA nanostructure/iron-based nanomaterials for combined tumor therapy. Chinese Chemical Letters, 2024, 35(11): 109620-. doi: 10.1016/j.cclet.2024.109620
20. [20]
  Linbao Zhang , Weisi Guo , Shuwen Wang , Ran Song , Ming Li . Electrochemical Oxidation of Sulfides to Sulfoxides. University Chemistry, 2024, 39(11): 204-209. doi: 10.3866/PKU.DXHX202401009

Get Citation

PDF

XML

Metrics

PDF Downloads(2560)
Abstract views(3768)
HTML views(51)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return