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Measurement of Ion Concentration in the Unstirred Boundary Layer with Open Patch-Clamp Pipette: Implications in Control of Ion Channels by Fluid Flow
Chapters
- 00:04Title
- 00:30Agarose Salt Bridges Between the Bath Solution and Reference Electrode
- 01:29Application of Fluid Flow Shear Force to Cells in a Patch-Clamping Chamber
- 02:21Measuring Changes in Liquid-Metal Junction Potential
- 03:18Experimental Estimation of Real Chloride Concentration
- 04:07Results: Effects of Fluid Flow on L-type VDCCL and Kir2.1 Currents With and Without Agarose 3 M KCl Bridge
- 05:14Conclusion
Mechanosensitive ion channels are often studied in terms of fluid flow/shear force sensitivity with patch-clamp recording. However, depending on the experimental protocol, the outcome on fluid flow-regulations of ion channels can be erroneous. Here, we provide methods for preventing and correcting such errors with a theoretical basis.
