کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
602907 880000 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Controlled growth of calcium oxalate crystal in bicontinuous microemulsions containing amino acids
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Controlled growth of calcium oxalate crystal in bicontinuous microemulsions containing amino acids
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces B: Biointerfaces - Volume 58, Issue 2, 1 August 2007, Pages 298-304
نویسندگان
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