Pressure-Induced Enlargement and Ionic Current Rectification in Symmetric Nanopores
| Autor: | Michal Macha, David M. Huang, Aleksandra Radenovic, Sebastian J. Davis, Andrey Chernev, Sanjin Marion |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Hydrostatic pressure FOS: Physical sciences Bioengineering Nanofluidics Applied Physics (physics.app-ph) 02 engineering and technology Condensed Matter - Soft Condensed Matter nanofluidics 7. Clean energy pressure strain Fluid dynamics General Materials Science nanopore enlargement Ion transporter ionic current rectification Mechanical Engineering Physics - Applied Physics General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Nanopore Membrane Chemical physics Soft Condensed Matter (cond-mat.soft) Deformation (engineering) Current (fluid) 0210 nano-technology |
| Zdroj: | Nano Letters Web of Science |
| ISSN: | 1530-6992 1530-6984 |
| Popis: | Nanopores in solid state membranes are a tool able to probe nanofluidic phenomena or can act as a single molecular sensor. They also have diverse applications in filtration, desalination, or osmotic power generation. Many of these applications involve chemical, or hydrostatic pressure differences which act on both the supporting membrane, and the ion transport through the pore. By using pressure differences between the sides of the membrane and an alternating current approach to probe ion transport, we investigate two distinct physical phenomena: the elastic deformation of the membrane through the measurement of strain at the nanopore, and the growth of ionic current rectification with pressure due to pore entrance effects. These measurements are a significant step toward the understanding of the role of elastic membrane deformation or fluid flow on linear and nonlinear transport properties of nanopores. |
| Databáze: | OpenAIRE |
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