Zobrazeno 1 - 10
of 63
pro vyhledávání: '"S. A. Potekhin"'
Autor:
S. A. Potekhin, R. S. Khusainova
Publikováno v:
Biophysics. 64:317-322
—A theoretical assessment of the half-width of the conformational transition of macromolecules caused by an increase in pressure is presented. It is shown that the half-width is determined mainly by the change (jump) of the volume during the transi
Autor:
Valerij Y. Grinberg, S. A. Potekhin, Tatiana V. Burova, Alexander A. Senin, Natalia V. Grinberg, Alexander S. Dubovik
Publikováno v:
Polymer. 138:288-294
Micellization of a poloxamer P105 in diluted aqueous solutions was first investigated by means of high-sensitivity differential scanning calorimetry at different pressures up to ∼160 MPa. The temperature dependence of partial heat capacity of the p
Autor:
S. A. Potekhin, Alexander Y. Yegorov
Publikováno v:
Thermochimica Acta. 698:178885
Scanning microcalorimetry was used to study heat denaturation of ribonuclease A at high pressure. The pressure dependences of temperature and enthalpy of denaturation were measured at two levels of pH. It was shown that pressure destabilizes the RNas
Autor:
Alexander A. Senin, S. A. Potekhin, Tatiana V. Burova, Alexander S. Dubovik, Igor Erukhimovich, Natalia V. Grinberg, Valerij Y. Grinberg
Publikováno v:
Polymer. 87:283-289
Phase separation in aqueous solutions of poly(vinyl methyl ether) was first investigated by high-sensitivity differential scanning calorimetry at normal and high pressures. Thermograms of the phase separation had two singular points: a binodal point
Autor:
S. A. Potekhin
Publikováno v:
Biochemistry. Biokhimiia. 83(Suppl 1)
The development of high-pressure scanning microcalorimetry and the first results studying transitions in proteins, lipids, and model polymers are reviewed. Special attention is given to changes (increments) in volume parameters upon transitions as we
Publikováno v:
Biophysics. 60:687-691
Possible effects of high pressure on heat denaturation of biopolymers have been analyzed. The study was made using an equilibrium model of transition between two states. Equations used to determine the dependence of thermodynamic parameters of transi
Autor:
Alexander Y. Yegorov, S. A. Potekhin
Publikováno v:
Thermochimica Acta. 610:10-15
The effect of high pressure on the change in the heat capacity (Δcp) of ribonuclease A and lysozyme upon denaturation has been studied using scanning microcalorimetry techniques. It has been shown that the pressure has no impact on Δcp up to 178 MP