Title of article :
Controlled growth of calcium oxalate crystal in bicontinuous microemulsions containing amino acids
Author/Authors :
Shen، نويسنده , , Yuhua and Li، نويسنده , , Shikuo and Xie، نويسنده , , Anjian and Xu، نويسنده , , Wanghua and Qiu، نويسنده , , Lingguang and Yao، نويسنده , , Hui and Yu، نويسنده , , Xuerong and Chen، نويسنده , , Zhangxu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
7
From page :
298
To page :
304
Abstract :
The growth of calcium oxalate (CaC2O4) crystal in water channels of three kinds of bicontinuous microemulsions, consisted of P-octyl polyethylene glycol phenylether (OP)/n-amyl alcohol/cyclohexane/water and above microemulsions containing tryptophan (Trp) or aspartic acid (Asp) has been studied. The products were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). The results indicated that both surfactant and amino acids all could prompt the growth of calcium oxalate monohydrate (COM) crystal, but the crystal morphology varied with the different microemulsions, pH values of the aqueous solution in channels and concentrations of the reactants. Various crystal morphologies such as butterfly-like, hollow and spiny spherical could be observed easily. A model of molecular identification – organized assembly – pervasion-combination balance was proposed to explain the formation mechanism of CaC2O4 crystals in the microemulsions containing Asp.
Keywords :
Crystal morphology , Bicontinuous microemulsion , calcium oxalate , Amino acid , biomineralization
Journal title :
Colloids and Surfaces B Biointerfaces
Serial Year :
2007
Journal title :
Colloids and Surfaces B Biointerfaces
Record number :
1968364
Link To Document :
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