ArticleNano letters2015
Electroosmotic flow reversal outside glass nanopores.
Article in Nano letters, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Pressure-Modulated, Electroosmotic Flow-Driven DNA Translocations Determine DNA Super-Structure.Small methods · 2026Article
- Characterization of ion track-etched conical nanopores in thermal and PECVD SiOBeilstein journal of nanotechnology · 2025Article
- Electro-osmotic Flow Generation via a Sticky Ion Action.ACS nano · 2024Article
- Scalability of nanopore osmotic energy conversion.Exploration (Beijing, China) · 2024Article
- Electro-Osmotic Flow Generation via a Sticky Ion Action.bioRxiv : the preprint server for biology · 2023Article
- Diversity of dynamic voltage patterns in neuronal dendrites revealed by nanopipette electrophysiology.Nanoscale · 2023Article
- Over 30-Fold Enhancement in DNA Translocation Dynamics through Nanoscale Pores Coated with an Anionic Surfactant.Nano letters · 2023Article
- On the origins of conductive pulse sensing inside a nanopore.Nature communications · 2022Article
- Synchronized resistive-pulse analysis with flow visualization for single micro- and nanoscale objects driven by optical vortex in double orifice.Scientific reports · 2021Article
- An Electrokinetically-Driven Microchip for Rapid Entrapment and Detection of Nanovesicles.Micromachines · 2020Article
- Single-Molecule Counting of Nucleotide by Electrophoresis with Nanochannel-Integrated Nano-Gap Devices.Micromachines · 2020Article
- Pore Structures for High-Throughput Nanopore Devices.Micromachines · 2020Article
- Nanoscale Fluid Vortices and Nonlinear Electroosmotic Flow Drive Ion Current Rectification in the Presence of Concentration Gradients.The journal of physical chemistry. A · 2019Article
- A low voltage nanopipette dielectrophoretic device for rapid entrapment of nanoparticles and exosomes extracted from plasma of healthy donors.Scientific reports · 2018Article
- Universal Scaling of Robust Thermal Hot Spot and Ionic Current Enhancement by Focused Ohmic Heating in a Conic Nanopore.Physical review letters · 2016Article
- Translocation frequency of double-stranded DNA through a solid-state nanopore.Physical review. E · 2016Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
We report observations of a striking reversal in the direction of electroosmotic flow (EOF) outside a conical glass nanopore as a function of salt concentration. At high ionic strengths (>100 mM), we observe EOF in the expected direction as predicted by classical electrokinetic theory, while at low salt concentrations (<1 mM) the direction of the flow is reversed. The critical crossover salt concentration depends on the pore diameter. Finite-element simulations indicate a competition between the EOF generated from the inner and outer walls of the pore, which drives flows in opposite directions. We have developed a simple analytical model which reveals that, as the salt concentration is reduced, the flow rates inside the pore are geometrically constrained, whereas there is no such limit for flows outside the pore. This model captures all of the essential physics of the system and explains the observed data, highlighting the key role the external environment plays in determining the overall electroosmotic behavior.
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