Consulta: subjectFacets:"Hofmeister series"
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Ion-specific thermodynamical properties of aqueous proteins
Provedor de dados: 42
Autores: Lima,Eduardo R.A.; Biscaia Jr.,Evaristo C.; Boström,Mathias; Tavares,Frederico W.
Ion-specific interactions between two colloidal particles are calculated using a modified Poisson-Boltzmann (PB)equationandMonteCarlo(MC)simulations. PBequationspresentgoodresultsofionicconcentration profiles around a macroion, especially for salt solutions containing monovalent ions. These equations include not only electrostatic interactions, but also dispersion potentials originated from polarizabilities of ions and proteins. This enables us to predict ion-specific properties of colloidal systems. We compared results obtained from the modified PB equation with those from MC simulations and integral equations. Phase diagrams and osmotic second virial coefficients are also presented for different salt solutions at different pH and ionic strengths, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colloid stability; Hofmeister series; Potential of mean force; Proteins.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000100010