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High quality ion channel analysis on a chip with the NPC technology
A Brüggemann1, M George, M Klau
1Nanion Technologies GmbH, München, Germany.
Assay and Drug Development Technologies
|April 20, 2004
Summary
Automated patch-clamp recordings using planar chips in the Port-a-Patch system offer high-quality ion channel analysis. This method enables efficient compound screening with minimal reagent use, benefiting rare or expensive compound research.
Area of Science:
- Electrophysiology
- Ion Channel Research
- Pharmacology
Background:
- Electrophysiology, particularly patch clamping, is crucial for evaluating ion channel function.
- The whole-cell configuration of patch clamping is vital for analyzing ion channel-modulating compounds.
- Existing methods can be limited by throughput and reagent consumption.
Purpose of the Study:
- To present patch-clamp recordings using microstructured planar chips.
- To demonstrate the utility of the Port-a-Patch instrument for automated, single-cell ion channel experiments.
- To showcase the system's capabilities for quantitative pharmacology and rapid solution exchange.
Main Methods:
- Utilized planar patch-clamp chips made from borosilicate glass.
- Performed whole-cell and single-channel recordings using the Port-a-Patch instrument.
- Employed automated software for cell positioning, electrical stimulation, and current readout.
Main Results:
- Achieved high-quality electrophysiological recordings.
- Demonstrated versatile cell perfusion capabilities.
- Successfully conducted quantitative pharmacological experiments on sodium channels with low microliter solution volumes.
Conclusions:
- The Port-a-Patch system with planar chips enables efficient and high-quality ion channel analysis.
- The low compound consumption makes it ideal for screening rare or expensive substances.
- Rapid solution exchange facilitates sophisticated investigations of ion channel function.