Attractive double-layer forces between neutral hydrophobic and neutral hydrophilic surfaces

The interaction between surface patches of proteins with different surface properties has a vital role to play driving conformational changes in proteins in different salt solutions. We demonstrate the existence of ion-specific attractive double-layer forces between neutral hydrophobic and hydrophilic surfaces in the presence of certain salt solutions. This is performed by solving a generalized Poisson-Boltzmann equation for two unequal surfaces. In the calculations, we utilize parametrized ion-surface potentials and dielectric-constant profiles deduced from recent non-primitive-model molecular dynamics simulations that partially account for molecular structure and hydration effects.

Boström, MathiasLinköpings universitet,Teoretisk Fysik,Tekniska högskolan(Swepub:liu)matbo86 (författare)
Schwierz, NadineTechnical University of Munich (författare)
Sernelius, BoLinköpings universitet,Teoretisk Fysik,Tekniska högskolan(Swepub:liu)bose02 (författare)
Tavares, Frederico W.University of Federal Rio de Janeiro (författare)
University of Estado Rio de JaneiroTeoretisk Fysik (creator_code:org_t)

Ingår i:Physical Review E. Statistical, Nonlinear, and Soft Matter Physics: American Physical Society84:6, s. 061903-1539-37551550-2376

Av författaren/redakt...: Lima, Eduardo R. ...; Boström, Mathias; Schwierz, Nadine; Sernelius, Bo; Tavares, Frederi ...

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