ArticleProceedings of the National Academy of Sciences of the United States of America2013
Tunable soft structure in charged fluids confined by dielectric interfaces.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Image-charge effects on ion adsorption near aqueous interfaces.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Surface polarization effects in confined polyelectrolyte solutions.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Single-crystal Winterbottom constructions of nanoparticle superlattices.Nature materials · 2020Article
- Hydrophobic Hydration and the Effect of NaCl Salt in the Adsorption of Hydrocarbons and Surfactants on Clathrate Hydrates.ACS central science · 2018Article
- Electrostatic confinement and manipulation of DNA molecules for genome analysis.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Strong attractions and repulsions mediated by monovalent salts.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Electrolyte-Mediated Assembly of Charged Nanoparticles.ACS central science · 2016Article
- Effective charges and virial pressure of concentrated macroion solutions.Proceedings of the National Academy of Sciences of the United States of America · 2015Article
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Authors and funding
2 authors.
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Abstract
Fluids of charged particles act as the supporting medium for chemical reactions and physical, dynamical, and biological processes. The local structure in an electrolytic background is deformed by micro- and nanoscopic polarizable objects. Vice versa, the forces between the objects are regulated by the cohesive properties of the background. We study here the range and strength of these forces and the microscopic origin from which they emerge. We find the forces to be sensitively dependent on the material properties of the charged fluid and the immersed solutes. The induced interactions can be varied over decades, offering high tunability and aided by accurate theory, control in experiments and applications. To distinguish correlational effects from simple ionic screening, we describe electrolyte-induced forces between neutral objects. The interplay of thermal motion, short-range repulsions, and electrostatic forces is responsible for a soft structure in the fluid. This structure changes near polarizable interfaces and causes diverse attractions between confining walls that seem well-exploited by microbiological systems. For parameters that correspond to monovalent electrolytes in biologically and technologically relevant aqueous environments, we find induced forces between nanoscopic areas of the order of piconewtons over a few nanometers.
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