Home

Citation: Gao Hong-Wen, Zi Yan-Qin, Li Yu-Cheng. Langmuir Aggregation of Polychrome Blue on Nucleic Acids[J]. Acta Physico-Chimica Sinica, ;2002, 18(06): 540-544. doi: 10.3866/PKU.WHXB20020614 shu

Langmuir Aggregation of Polychrome Blue on Nucleic Acids

1.
School of Chemistry and Chemical Engineering, Anhui University, Hefei　230039;Department of Chemistry, Huaibei Coal Normal College, Huaibei　235000;School of Life Science, Anhui University, Hefei　230039

Received Date: 22 October 2001
Available Online: 15 June 2002

In the present work, the combination of both the Langmuir adsorption and the spectral correction (MPASC) technique are described. It provides a very helpful experimental method for the study of aggregation of a dye on biomacromolecules. The helix, winding and folding of DNA form double electrostatic films and their surface will selectively attract charged organic compounds in only monolayer untill kinetic equilibrium approached. The physico-chemical constants such as equilibrium constant and binding stoichiometry of the aggregate may be determined. The adsorption of polychrome blue (PCB) on nucleic acids has been investigated at pH 7.24 and it obeys Langmuir monolayer adsorption. Results showed that the adsorption ratio of PCB to DNA-PCB is 0.5 :1 and that to RNA-PCB 0.3 :1, their adsorption constants are KDNA-PCB=5.42×104 and KRNA-PCB=2.82×104（30 ℃） respectively, and their real adsorptivity ε(DNA-PCB, 625 nm)=5.65×103 andε(RNA-PCB, 625 nm)=3.85×103 (mol－1•L)•cm. By varying the operation condition, we observed that the adsorption ratio of PCB to DNA decreased with increasing ionic strength and temperature. This indicates that the interaction is an adsorption but not a complexation. This interaction was applied to the quantitative determination of DNA. In the presence of EDTA, many ions or compounds such as protein, alkali earths, Mn(II), Cu(II),Fe(II), Zn(II), Pb(II), Ni(II), Co(II) and Cd(II) have no interference to the direct determination of nucleic acids.
- MPASC technique;Double electrostatic films;Langmuir aggregation; Nucleic acids;Polychrome blue (PCB)
1. [1]
  Yixian Zhou , Xiaodong Shen , Lina Zhu . Polycyclic Aromatic Hydrocarbons (PAHs) as Environmental Pollutants: Recent Advances in Adsorptive Removal Technologies. University Chemistry, 2026, 41(4): 239-249. doi: 10.12461/PKU.DXHX202502084
2. [2]
  Qin′ai FENG , Jianjun LI , Lili ZHANG , Linxin WU , Huiling WANG , Wenjing HOU , Lei WANG , Mingjie REN . Amphiphilic surface modification of magnetic adsorbents and its adsorption properties of two microplastics. Chinese Journal of Inorganic Chemistry, 2026, 42(4): 789-807. doi: 10.11862/CJIC.20250208
3. [3]
  Jianan Zhang , Mengzhen Xu , Jiamin Liu , Yufei He . 面向“双碳”目标的脱氯吸附剂开发研究型综合实验设计. University Chemistry, 2025, 40(6): 248-255. doi: 10.12461/PKU.DXHX202408068
4. [4]
  Ruilin He , Fengyi Wang , Zhikai Xia , Linling Zheng , Yue Liu . 球核酸的制备及DNA检测应用. University Chemistry, 2026, 41(5): 230-238. doi: 10.12461/PKU.DXHX202511108
5. [5]
  Liang TANG , Jingfei NI , Kang XIAO , Xiangmei LIU . Synthesis and X-ray imaging application of lanthanide-organic complex-based scintillators. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1892-1902. doi: 10.11862/CJIC.20240139
6. [6]
  Ningyuan Chen , Qingyi Zeng , Zhiqiang Kuang , Peicong Tian , Dazhi Yan , Weiliang Jin , Deming Kong . Digital-Assisted Experimental Study on Dye Adsorption by Porous Materials. University Chemistry, 2026, 41(1): 321-331. doi: 10.12461/PKU.DXHX202504072
7. [7]
  Qinqi Zhang , Zhuoran Bi , Yi Zhong , Ziting Xu , Lanlan Chen . 双重信号放大功能核酸荧光探针用于水中抗生素的超灵敏检测. University Chemistry, 2026, 41(5): 448-454. doi: 10.12461/PKU.DXHX202511151
8. [8]
  Qi Li , Pingan Li , Zetong Liu , Jiahui Zhang , Hao Zhang , Weilai Yu , Xianluo Hu . Fabricating Micro/Nanostructured Separators and Electrode Materials by Coaxial Electrospinning for Lithium-Ion Batteries: From Fundamentals to Applications. Acta Physico-Chimica Sinica, 2024, 40(10): 2311030-0. doi: 10.3866/PKU.WHXB202311030
9. [9]
  Zhiqing Jia , Xinju Gong , Di Lan , Huanhuan Sun , Yu Liu , Yuping Gao , Siyao Guo . Electrostatically induced dual-coupled interfaces of defect polarization enhanced PBA/MXene heterostructures for boosting electromagnetic wave absorption. Acta Physico-Chimica Sinica, 2026, 42(8): 100312-0. doi: 10.1016/j.actphy.2026.100312
10. [10]
  Qilong Fang , Yiqi Li , Jiangyihui Sheng , Quan Yuan , Jie Tan . Magical Pesticide Residue Detection Test Strips: Aptamer-based Lateral Flow Test Strips for Organophosphorus Pesticide Detection. University Chemistry, 2024, 39(5): 80-89. doi: 10.3866/PKU.DXHX202310004
11. [11]
  Xiaosong PU , Hangkai WU , Taohong LI , Huijuan LI , Shouqing LIU , Yuanbo HUANG , Xuemei LI . Adsorption performance and removal mechanism of Cd(Ⅱ) in water by magnesium modified carbon foam. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1537-1548. doi: 10.11862/CJIC.20240030
12. [12]
  Jingke LIU , Jia CHEN , Yingchao HAN . Nano hydroxyapatite stable suspension system: Preparation and cobalt adsorption performance. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1763-1774. doi: 10.11862/CJIC.20240060
13. [13]
  Ping ZHANG , Chenchen ZHAO , Xiaoyun CUI , Bing XIE , Yihan LIU , Haiyu LIN , Jiale ZHANG , Yu'nan CHEN . Preparation and adsorption-photocatalytic performance of ZnAl@layered double oxides. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1965-1974. doi: 10.11862/CJIC.20240014
14. [14]
  Fang Niu , Rong Li , Qiaolan Zhang . Analysis of Gas-Solid Adsorption Behavior in Resistive Gas Sensing Process. University Chemistry, 2024, 39(8): 142-148. doi: 10.3866/PKU.DXHX202311102
15. [15]
  Jiali CHEN , Guoxiang ZHAO , Yayu YAN , Wanting XIA , Qiaohong LI , Jian ZHANG . Machine learning exploring the adsorption of electronic gases on zeolite molecular sieves. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 155-164. doi: 10.11862/CJIC.20240408
16. [16]
  Yang ZHOU , Lili YAN , Wenjuan ZHANG , Pinhua RAO . Thermal regeneration of biogas residue biochar and the ammonia nitrogen adsorption properties. Chinese Journal of Inorganic Chemistry, 2025, 41(8): 1574-1588. doi: 10.11862/CJIC.20250032
17. [17]
  Kun JIANG , Yutong XUE , Kelin LIU , Miao WANG , Tongming SUN , Yanfeng TANG . CeVO₄ hollow microspheres: Fabrication and adsorption performance for dyes. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2229-2236. doi: 10.11862/CJIC.20250223
18. [18]
  Peipei DING , Jingying DUAN , Haoran XU , Xinru FANG , Xingyu LIU , Juntao YAN , Chunlei WANG . Preparation and adsorption properties of poplar catkin-derived porous carbon by ethanol solvothermal method. Chinese Journal of Inorganic Chemistry, 2026, 42(6): 1203-1214. doi: 10.11862/CJIC.20250370
19. [19]
  Yichang Liu , Li An , Dan Qu , Zaicheng Sun . “双碳”背景下的综合设计实验——以PbCrO₄催化甲基蓝的光降解速率常数测定为例. University Chemistry, 2025, 40(6): 222-229. doi: 10.12461/PKU.DXHX202407105
20. [20]
  Xueqi Yang , Juntao Zhao , Jiawei Ye , Desen Zhou , Tingmin Di , Jun Zhang . 调节NNU-55(Fe)的d带中心以增强CO₂吸附和光催化活性. Acta Physico-Chimica Sinica, 2025, 41(7): 100074-0. doi: 10.1016/j.actphy.2025.100074

Get Citation

PDF

XML

Metrics

PDF Downloads(2549)
Abstract views(3577)
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