Struvite is one of the components of urinary stone. Large number of people is suffering from urinary stones (calculi) problem all over the globe. These stones can grow rapidly forming "staghorn-calculi", which is more painful urological disorder. Therefore, it is of prime importance to study the growth and inhibition of Struvite crystals. This in vitro study has been carried out in the presence of herbal extract of Commiphora wightii by using single diffusion gel growth technique. Sodium metasilicate solution of specific gravity 1.05 and an aqueous solution of ammonium dihydrogen phosphate of 0.5 M concentration were mixed so that the pH value 7.0 could be set. After the gelation, equal amount of supernatant solutions comprising of pure 1.0 M magnesium acetate as well as the mixtures of magnesium acetate and the herbal extract solutions of 0.5 and 1% concentrations of C. wightii were gently poured on the set gels. From the study of growth and inhibition behavior of Struvite crystals, it was found that C. wightii inhibits the growth of the Struvite. This study incorporates multidisciplinary interests and may be used for formulating the strategy for prevention or dissolution of urinary stones.
Struvite-K is the natural potassium equivalent to Struvite. Struvite-K crystals were grown by single diffusion gel growth technique in silica hydro gel medium. Struvite-K crystals with different morphologies having transparent to translucent diaphaneity were grown with different growth parameters. The phenomenon of Liesegang rings was also observed with some particular growth parameters. The crystals were characterized by powder XRD, FT-IR, TGA and dielectric study. The powder XRD results of Struvite-K confirmed the orthorhombic crystal structure. The FT-IR spectrum proved the presence of water of hydration, metaloxygen bond and P -O bond. The TGA, DSC and DTA were carried out simultaneously. It was found that crystals started dehydrating and decomposing from 75 °C and finally at 600 °C temperature it became 64.14% of the original weight and remained almost constant up to the end of analysis. From the thermo-gravimetry, the numbers of the water molecules associated with the crystal were calculated and found to be 5. The kinetic and thermodynamic parameters of dehydration / decomposition process were calculated. The variation of dielectric constant with frequency of applied field was studied in the range from 400 Hz to 100 kHz, which exhibited the decreasing nature of the dielectric constant as frequency increased. The dielectric study showed that a.c. conductivity increased and consequently the a.c. resistivity decreased with the increase in frequency.
Struvite, one of the components of urinary stone grows rapidly forming "staghorn-calculi", is a painful urological disorder. It is necessary to study the growth-inhibition of Struvite crystals. This in vitro study has been carried out in the presence of the juice of Citrus medica Linn. by using single diffusion gel growth technique. Sodium metasilicate solution of specific gravity 1.05 and an aqueous solution of ammonium dihydrogen phosphate of 0.5 M concentration were mixed so that the pH value 7.0 could be set. After the gelation, supernatant solutions comprising of pure 1.0 M Magnesium acetate (control solution) as well as mixed with the different concentrations of the juice were gently poured on the set gels. From the study of growth-inhibition behavior of Struvite crystals, it was found that Citrus medica Linn. inhibits the growth of the crystals. This study may be used for formulating the strategy for prevention or dissolution of Struvite.
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