NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2015, Vol. 27 ›› Issue (4): 630-632.doi: 10.16333/j.1001-6880.2015.04.015

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Interaction Mechanism between Cinnamic acid-La (III) Complex and Herring Sperm DNA

LI Xiao-fang1*, FENG Xiao-qiang1, YANG Sheng2   

  1. 1 Central laboratory of College of Life Science and Chemistry,Tianshui Normal University,Gansu Tianshui 741001,China; 2  Dingxi Teachers’ College,Gansu Dingxi 743000,China
  • Online:2015-04-28 Published:2015-05-08

Abstract: The UV-Vis spectroscopy was used to study the interaction of cinnamic acid with the La (Ш).The results showed that La (Ш) and cinnamic acid can form a complex with the molar ratio of 1:2,and its molar absorptivity was ε=4.9×106 L/(mol·cm).In addition,the interaction between cinnamic acid-La (III) complex and DNA was studied.The results showed that the intercalation effects existed between DNA and complex,and the binding constant k was 4.47×103 L/mol of complex with DNA,the molar ratio of 1:3.

Key words: cinnamic acid, La (Ш) complex, DNA, interaction

CLC Number: