Patch-clamp recording coating

The need to plasma-treat the PDMS surface just before use may be a disadvantage of the planar electrode. This would add a plasma system to the required equipment for patch clamp experiments. However, the planar electrodes do not require use of the high-quality optical microscope and micromanipulators currently required for patch clamp recording. In addition, conventional patch pipettes commonly require several processing steps before use including heat polishing and coating. 

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