TY - JOUR
T1 - Ion-specific hydration effects
T2 - Extending the Poisson-Boltzmann theory
AU - Ben-Yaakov, Dan
AU - Andelman, David
AU - Podgornik, Rudi
AU - Harries, Daniel
N1 - Funding Information:
Partial support from the Slovenian Research Agency through program P1-0055 (research project J1-0908 ), the Isreali-Slovene joint research project, the Israel Science Foundation (ISF) under grant no. 231/08 , and the US–Israel Binational Science Foundation (BSF) under grant no. 2006/055 is gratefully acknowledged. RP would like to thank the Aspen Center for Physics where parts of this work have been conceived during the workshop New Perspectives in Strongly Correlated Electrostatics in Soft Matter.
PY - 2011/12
Y1 - 2011/12
N2 - In aqueous solutions, dissolved ions interact strongly with the surrounding water and surfaces, thereby modifying solution properties in an ion-specific manner. These ion-hydration interactions can be accounted for theoretically on a mean-field level by including phenomenological terms in the free energy that correspond to the most dominant ion-specific interactions. Minimizing this free energy leads to modified Poisson-Boltzmann equations with appropriate boundary conditions. Here, we review how this strategy has been used to predict some of the ways ion-specific effects can modify the forces acting within and between charged interfaces immersed in salt solutions.
AB - In aqueous solutions, dissolved ions interact strongly with the surrounding water and surfaces, thereby modifying solution properties in an ion-specific manner. These ion-hydration interactions can be accounted for theoretically on a mean-field level by including phenomenological terms in the free energy that correspond to the most dominant ion-specific interactions. Minimizing this free energy leads to modified Poisson-Boltzmann equations with appropriate boundary conditions. Here, we review how this strategy has been used to predict some of the ways ion-specific effects can modify the forces acting within and between charged interfaces immersed in salt solutions.
KW - Electrostatic interactions
KW - Forces between charged surfaces
KW - Hydration forces
KW - Ion specific interactions
KW - Poisson-Boltzmann theory
UR - http://www.scopus.com/inward/record.url?scp=84855871751&partnerID=8YFLogxK
U2 - 10.1016/j.cocis.2011.04.012
DO - 10.1016/j.cocis.2011.04.012
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AN - SCOPUS:84855871751
SN - 1359-0294
VL - 16
SP - 542
EP - 550
JO - Current Opinion in Colloid and Interface Science
JF - Current Opinion in Colloid and Interface Science
IS - 6
ER -