Correlation and prediction of osmotic pressures for three aqueous protein–electrolyte solutions based on the Ross perturbation theory and soft-core three-Yukawa potential

A simple and analytical pair potential function was developed to represent the osmotic pressures in aqueous protein/salt systems under various conditions. Based on a hard core Lennard-Jones (HCLJ) potential model, the new potential function considers various interactions by extending the attractive Lennard-Jones potential. A temperature-dependent coefficient term was introduced to take into account the specific properties of given materials. Comparison of the new potential function with the HCLJ model in hydrocarbon and water systems showed that consideration of the temperature dependence in the potential function was effective, especially for strong polar systems such as water. To predict the osmotic pressures of aqueous lysozyme/(NH(4))(2)SO(4) solutions of various ionic strength and pH, the energy parameters of lysozyme were correlated with the experimental cloud point temperature. The proposed model agreed fairly well with the experimental osmotic pressure data with only previously obtained parameters.

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Analytical Solutions of the Dirac Equation with Effective Tensor Potential

Onate

Adebimpe

Lukman

et al. 2019

J. Korean Phys. Soc.

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The analytical solutions of the Dirac equation under spin and pseudospin symmetries with a Hellmann-like tensor potential for a class of Yukawa potential is studied via supersymmetric (SUSY) quantum mechanics (QM). The effect of Hellmann like tensor potential which is a new tensor potential on the energy degeneracy in both the spin and pseudospin symmetries has been investigated in detail. The Hellmann like tensor potential removes the energy degeneracies completely in both the spin and pseudospin symmetries. The popular Coulomb tensor and Yukawa tensor were also deduced from the Hellmann tensor potential.

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Correlation and prediction of osmotic pressures for three aqueous protein–electrolyte solutions based on the Ross perturbation theory and soft-core three-Yukawa potential

Cited by 3 publications

References 24 publications

Estimation of ion-induced dipole interactions to the thermodynamics of alkali halide melts

Estimation of ion-induced dipole interactions to the thermodynamics of alkali halide melts

Theoretical consideration of osmotic pressure in aqueous protein/salt systems based on extended hard core Lennard-Jones potential

Analytical Solutions of the Dirac Equation with Effective Tensor Potential

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