ArticleProceedings of the National Academy of Sciences of the United States of America2020
Surface polarization effects in confined polyelectrolyte solutions.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. 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.
- Capacitive Neuromodulation via Material-Based Passive Interaction: Efficacy in Motor Function Improvement in Parkinson Disease.Biosensors · 2024Trial
- Accelerating molecular dynamics simulations using fast Ewald summation with prolates.Nature communications · 2026Article
- Direct Probing the Electrical Double Layer at Graphite/Nafion Interface via Depth Profiling APXPS.Journal of the American Chemical Society · 2025Article
- Structural Effects of Multivalent Counterions in the Self-Assembly of Polyelectrolyte Copolymers.ACS omega · 2025Article
- GCMe: Efficient Implementation of the Gaussian Core Model with Smeared Electrostatic Interactions for Molecular Dynamics Simulations of Soft Matter Systems.Journal of chemical theory and computation · 2024Article
- Nanoionics from Biological to Artificial Systems: An Alternative Beyond Nanoelectronics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Review
- Unexpected inverse correlations and cooperativity in ion-pair phase transfer.Chemical science · 2021Article
- Image-charge effects on ion adsorption near aqueous interfaces.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Understanding nanoscale interactions at the interface between two media with different dielectric constants is crucial for controlling many environmental and biological processes, and for improving the efficiency of energy storage devices. In this contributed paper, we show that polarization effects due to such dielectric mismatch remarkably influence the double-layer structure of a polyelectrolyte solution confined between two charged surfaces. Surprisingly, the electrostatic potential across the adsorbed polyelectrolyte double layer at the confining surface is found to decrease with increasing surface charge density, indicative of a negative differential capacitance. Furthermore, in the presence of polarization effects, the electrostatic energy stored in the double-layer structure is enhanced with an increase in the charge amplification, which is the absorption of ions on a like-charged surface. We also find that all of the important double-layer properties, such as charge amplification, energy storage, and differential capacitance, strongly depend on the polyelectrolyte backbone flexibility and the solvent quality. These interesting behaviors are attributed to the interplay between the conformational entropy of the confined polyelectrolytes, the Coulombic interaction between the charged species, and the repulsion from the surfaces with lower dielectric constant.
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Registered trials
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