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Citation: DENG Sui-Ping, OUYANG Jian-Ming. Defective Domains in LB Filmand Its Induction Growth of Ring-shaped CalciumOxalate Patterns[J]. Acta Physico-Chimica Sinica, ;2007, 23(05): 713-716. doi: 10.3866/PKU.WHXB20070517 shu

Defective Domains in LB Filmand Its Induction Growth of Ring-shaped CalciumOxalate Patterns

1.
nstitute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, P. R. China

Received Date: 6 November 2006
Available Online: 18 April 2007

Defective LB film was used as model for injured renal epithelial membrane to induce the growth of calcium oxalate monohydrate (COM) crystals, which was the major inorganic component found in renal calculi. After the LB film of dipalmitoylphosphatidylcholine (DPPC) was treated by 2.5 mmol·L-1 potassium oxalate, the structural differentiation between liquid expanded (LE) phase and liquid condensed (LC) phase in LB film was strengthened and circular defects appeared. These circular defects were proved by atomic force microscopy (AFM). Such circular defects could induce ring-shaped patterns of COM crystals. In comparison, the LB films without pretreatment by potassium oxalate only induced randomly growth of COMcrystals.
- Defective LB Film; Biomineralization; Calciumoxalate; AFM
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