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Volumn 112, Issue 31, 2008, Pages 9428-9436

Thermodynamic origin of hofmeister ion effects

Author keywords

[No Author keywords available]

Indexed keywords

AMINES; HYDROCARBONS; ORGANIC COMPOUNDS; POLYMERS; PROTEIN FOLDING; SURFACE CHEMISTRY; SURFACE TENSION; THERMOANALYSIS; THERMODYNAMICS;

EID: 49649112395     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp800816a     Document Type: Article
Times cited : (247)

References (53)
  • 15
    • 84906375214 scopus 로고    scopus 로고
    • Salts of these ions increase surface tension by a bulk osmotic effect analogous to freezing point depression (i.e, an increase in [salt] increases the thermodynamic (entropic) cost of unmixing bulk water from a salt solution to form pure water at the air-water interface, analogous to unmixing bulk water to form pure ice in the case of freezing point depression
    • Salts of these ions increase surface tension by a bulk osmotic effect analogous to freezing point depression (i.e., an increase in [salt] increases the thermodynamic (entropic) cost of unmixing bulk water from a salt solution to form pure water at the air-water interface, analogous to unmixing bulk water to form pure ice in the case of freezing point depression).
  • 20
    • 0003527686 scopus 로고    scopus 로고
    • In Protein Structure, Stability, and Folding
    • 2nd ed, Shriver, J. W, Ed, Humana Press: Totawa, NJ, in press
    • Pegram, L. M.; Record, M. T. In Protein Structure, Stability, and Folding, 2nd ed.; Shriver, J. W.; Ed.; Methods in Molecular Biology; Humana Press: Totawa, NJ, 2008, in press.
    • (2008) Methods in Molecular Biology
    • Pegram, L.M.1    Record, M.T.2
  • 24
    • 84906360969 scopus 로고    scopus 로고
    • Equation 1 for the SFEI is completely analogous to earlier analyses of thermodynamic effects of solutes on biopolymer processes.5,22,23 The SPM is a two-domain (local, bulk) interpretation of preferential interaction coefficients Γ, fundamental thermodynamic quantities (obtainable from experiment or from integration of the local excess or deficit of solute around a biopolymer relative to bulk) that describe the competition of solute and water for a surface. Equation 1 should be applied only for model compounds with low aqueous solubility, small salt effects i.e. free energy increments, or both. Rigorous application requires various corrections determined from isopiestic distillation data for two- and three-component solutions.25,26 Because this data is not available and the low-solubility requirement is met in most cases, the internally consistent analysis developed here should be applicable to salt effects on biopolymer processes
    • 25,26 Because this data is not available and the low-solubility requirement is met in most cases, the internally consistent analysis developed here should be applicable to salt effects on biopolymer processes.
  • 29
    • 84906389438 scopus 로고    scopus 로고
    • p,3 typically changes <2% in this concentration range.
    • p,3 typically changes <2% in this concentration range.
  • 36
    • 84906360970 scopus 로고    scopus 로고
    • Most solubility and distribution measurements were performed at 25°C; benzene solubility in a few salt solutions was measured at 30°C. This temperature difference is insignificant because the temperature dependence of solubility free energy increments for a particular solute, where measured, is found to be small.
    • Most solubility and distribution measurements were performed at 25°C; benzene solubility in a few salt solutions was measured at 30°C. This temperature difference is insignificant because the temperature dependence of solubility free energy increments for a particular solute, where measured, is found to be small.
  • 41
    • 84906375212 scopus 로고    scopus 로고
    • 1.
    • 1.
  • 45
    • 84906389434 scopus 로고    scopus 로고
    • nE series.
    • nE series.
  • 47
    • 84906360967 scopus 로고    scopus 로고
    • -) and slightly smaller for excluded anions.
    • -) and slightly smaller for excluded anions.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.