Future Issues
 
The Study of Composite Carrier Based on Organic and Inorganic Polymers

BATES MALIKOVNA KUDAIBERGENOVA, MARAT KIANOVICH BEISEBEKOV, SHYNAR NURLANOVNA ZHUMAGALIEVA, MADIAR MARATOVICH BEISEBEKOV, ZHARYLKASYN ABDUACHITOVICH. ABILOV, MUHAMMAD.IQBAL CHAUDHARY

In this work has been investigated the possibility of obtaining of composites on the basis of polyvinyl alcohol and bentonite clay Manrak deposit. The interaction of polyvinyl alcohol with bentonite clay has been studied by employing methods such as equilibrium swelling, sedimentation, electrophoresis, viscometer, and scanning electron microscopy. It was established that the interaction of polyvinyl alcohol and bentonite clay are due to the hydrogen bonding between them. The composite gels with the improved structural-mechanical and prolonged effect have been formed on a base both of polyvinyl alcohol and clay. Download
A Thermodynamic Study on Lysozyme with Sodium Dodecyl Sulfate in Different Temperatures and PHs

GHOLAMREZA REZAEI BEHBEHENI

The interaction of Sodium Dodecyl Sulfate (SDS) with hen egg lysozyme have been investigated at 298, 303 and 308 K in phosphate buffer at two different pH values (5 and 7), by isothermal titration calorimetry. The calorimetric data analysis allows the measurement of the complete set of thermodynamic parameters. The negative SDS ion binds to positive residues, neutralizes the protein surface charges and leads to precipitation and turbidity of the solution. At low concentrations of SDS, the binding is mainly electrostatic, with some simultaneous interaction of the hydrophobic tail with nearby hydrophobic patches on the lysozyme. The enthalpies of denaturation at pH 7 are 180.47, 198.51 and 216.56 kJmol−1 for 298, 303 and 308 K respectively Download

 

Browse By Issue