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Effect of Urea Derivatives on the Critical Micelle Concentration of Polyoxyethylated Nonionic Surfactant

Han, Suk-Kyu   (College of Pharmacy, Pusan National University  ); Kim, Min   (College of Pharmacy, Pusan National University  ); Park, Yong-Hoon   (College of Pharmacy, Pusan National University  ); Lee, Jeong-Hee   (College of Pharmacy, Pusan National University  ); Back, Woo-Back   (College of Pharmacy, Pusan National University  );
  • 초록

    The critical micelle concentrations (CMCs) of aqueous solutions of a nonionic surfactant, polyoxyl 23 lauryl ether in the presence of various concentration of urea and its derivatives were measured. The CMC of the surfactant increase in proportion to the concentration of the additives, and the CMC-raising activities increased with more and longer alkyl grups substituted in urea. The CMC shift values were successfully correlated with the cloud point shift values and the protein-denaturing activities of the additives, respectively. These results suggest that the micelle formation, clouding of the surfactant and the protein denaturation are a closely related phenomenon, and a common mechanism is operating which might be the hydrophobic interaction.


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  • 주제어

    Critical micelle conecetration  . urea  . nonionic surfactant  .

 저자의 다른 논문

  • Han, Suk-Kyu (22)

    • 1. 1976 Effect of n-Alkylamine Hydrochlorides on the Cloud Point of Nonionic Polyoxyethylated Surfactant 약학회지 20 (3): 156~161    
    • 2. 1977 Micellar Solubilization of Cholesterol, Cholesteryl Myristate and Gallstones by Synthetic Surfactants 약학회지 21 (3): 135~140    
    • 3. 1984 Effect of Additives on the Cloud Point of Polyethylene Glycols Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 7 (1): 1~9    
    • 4. 1986 Effect of phenothiazine derivatives on the thermotropic phase transition of liposomal phospholipid membrane Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 (2): 75~79    
    • 5. 1986 Fluorescence probe study on the solubilization sites of aniline derivatives in triton X-100 and zephiramine micelles Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 9 (3): 139~144    
    • 6. 1988 A Scanning Calorimetric Study of the Effect of Clover Saponin on Liposomal Phospholipid Membrane Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 11 (3): 181~184    
    • 7. 1988 국소마취제가 Synaptosomal Plasma Membrane Vesicles의 유동성에 미치는 영향 The Korean journal of pharmacology : official journal of the Society of Pharmacology, Republic of Korea 24 (1): 43~52    
    • 8. 1989 Development of Cotton Fabrics with Prolonged Antimicrobial Action Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 12 (2): 119~124    
    • 9. 1990 Effect of Drug Substances on the Microviscosity of Lipid Bilayer of Liposomal Membrane Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 13 (2): 192~197    
    • 10. 1991 Percutaneous Absorption-Enhancing Activity of Urea Derivatives Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 14 (1): 12~18    
  • 김민 (4)

  • 박용훈 (14)

  • Lee, Joung-Hee (89)

  • Back, Woo-Back (0)

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