Crystal growth of some urinary stone constituents: III. In- vitro crystallization of L-cystine and its characterization by E. Ramachandran and S. Natarajan

Crystal Research and Technology

Cryst. Res. Technol. 39, 308 (2004) - Abstract -

Crystal growth of some urinary stone constituents: III. In- vitro crystallization of L-cystine and its characterization

E. Ramachandran and S. Natarajan*

Department of Physics, Thiruvalluvar College, Papanasam-627425, India
*Department of Physics, Madurai Kamaraj University, Madurai-625021, India

Keywords	L-Cystine, urinary crystals, gel growth, XRD, FTIR, TGA/DTA
PACS	81.10.-h, 81.70.Pg, 61.10.Nz
DOI	10.1002/crat.200310187

L-Cystine (-SCH₂^.CHNH₂^.COOH), having the morphology of hexagonal plates, an amino acid constituent of urinary stone, is crystallized in silica gel under suitable pH conditions by double diffusion method. The grown crystals were characterized by density measurement, Fourier transform infra-red spectroscopy, X-ray powder diffraction and thermogravimetric analysis.

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