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Citation: XIE An-Jian, SHEN Yu-Hua, HUANG Fang-Zhi, ZHUANG Yong-Long, SONG Qing-Ping. Preparation and Application of the Reversed Microemulsion Containing Bilirubin/HDEHP[J]. Chinese Journal of Applied Chemistry, ;2003, 20(9): 823-828. shu

Preparation and Application of the Reversed Microemulsion Containing Bilirubin/HDEHP

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a School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039;
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b The Center of Modern Experiment Technology, Anhui University, Hefei;
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c State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093

Corresponding author: SHEN Yu-Hua,
Received Date: 3 March 2003
Available Online: 23 May 2003
Fund Project: 国家自然科学基金(20031010,29971001) (20031010,29971001)国家教育部重点项目(00180) (00180)安徽省自然科学基金资助项目(0045115) (0045115)

Bilirubin(H₂BR) and di-(2-ethylhexyl) phosphoric acid(HDEHP) were dissolved in chloroform/benzene mixture and partially saponified by ammonia to prepare reversed microemulsions which were characterized by TEM, conductometry and dynamic laser-scattering. The results showed that the mixture of benzene and chloroform in volume ratio of 7:3 was an optimal solvent and ammonia with concentration of 1.00 mol/L was the best saponifier for the formation of microemulsions. The molar ratio of H₂BR to HDEHP decreased with the increase in the total concentration of surfactants. The content of H₂BR affected greatly the amount of water in microemulsions. The diameter of water pool in microemulsions ranged from 60 nm to 120 nm, which were used to simulate a cell membrane and to produce a new reversed microemulsions containing CaCl₂/H₂BR/HDEHP. Calcium bilirubinate could be induced and controlled by both surfactants in the system, similar to that of biomineralization process in organism.
- reversed microemulsion,
- bilirubin,
- HDEHP,
- calcium bilirubinate,
- biomineralization
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