Low pressure tritiation of proteins.

Low pressure tritiation of proteins.

Preserving Proteins Under High Pressure and Low Temperature

Our group has a continuing interest in devising new freezing-protection agents. To this end, we have systematically investigated the structure of aqueous electrolyte salt solutions and room-temperature ionic liquids (RTILs), which consist of the cations and anions. We found that such water-mixed solutions remain liquid even at 1.0 GPa and 77 K (achieved by rapid cooling at 500 K/min) (Imai et a...

Low pressure adsorption of CO2 on multi-wall carbon nanotubes

Volumetric techniques were employed to study the adsorption of CO2 on a purified multi-wall carbon nanotubes (MWNT’s) sample, as a mesoporous material, at isothermal conditions of 288, 293 and 298 K and pressures ranging from 30 to 150 kPa. Langmuir, Freundlich and Sips equations were used to represent the isotherms. Also the parameters of these fitted isotherm models have been determined. The ...

Tritiation and Stability Measurements of Nitroxide for Betavoltaic Cells

Tritiation of tylosin and metabolic study in the rat.

Tritiated antibiotic tylosin was prepared by aqueous exchange, purified, then stabilized under phosphate form. After oral administration to rats, the balance study showed the following distribution: urine 10%, feces 46%. Urinary and fecal metabolites were identified as tylosin and desmycosin; 65 % of the urinary radioactivity was tritiated water. The elimination is biphasic. 3H-Tissue accumulat...