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Charge Inversion at High Ionic Strength Studied by Streaming Currents
Open accessAbstract
We report charge inversion, the sign reversal of the effective surface charge in the presence of multivalent counterions, for the biologically relevant regimes of divalent ions and mixtures of monovalent and multivalent ions. Using streaming currents, the pressure-driven transport of countercharges in the diffuse layer, we find that charge inversion occurs in rectangular silica nanochannels at high concentrations of divalent ions. Strong monovalent screening is found to cancel charge inversion, restoring the original surface charge polarity. An analytical model based on ion correlations successfully describes our observations.
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Cited by
Power Generation by Pressure-Driven Transport of Ions in Nanofluidic Channels
van der Heyden, F. H. J., Bonthuis, D. J., Stein, D., Meyer, C., & Dekker, C. (2007) · Nano Letters · doi:10.1021/nl070194h · Cited by 586
Self-citationHydration layer structure modulates superlubrication by trivalent La 3+ electrolytes
Han, T., Cao, W., Xu, Z., Adibnia, V., Olgiati, M., Valtiner, M., Ma, L., Zhang, C., Ma, M., Luo, J., et al. (2023) · Science Advances · doi:10.1126/sciadv.adf3902 · Cited by 112
Electrostatic Screening Length in Concentrated Salt Solutions
Gaddam, P., & Ducker, W. (2019) · Langmuir · doi:10.1021/acs.langmuir.9b00375 · Cited by 95
Metadata
- Authors
- van der Heyden, F. H. J., Stein, D., Besteman, K., Lemay, S. G., & Dekker, C.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-06-06
- Volume
- 96
- Issue
- 22
- Pages
- 224502-224502
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2141312404
- Cited by
- 284
- References
- 0
- FWCI
- 8.63
- Type
- journal article
- Language
- en
- Open access
- green
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- van der Heyden, F. H. J., Stein, D., Besteman, K., Lemay, S. G., & Dekker, C. (2006). Charge Inversion at High Ionic Strength Studied by Streaming Currents. Physical Review Letters. https://doi.org/10.1103/physrevlett.96.224502
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