Measuring transepithelial or trans endothelial electrical resistance (TEER) is a more accurate and measurable way to check the health of a barrier. You can measure the electrical resistance or voltage drop through the monolayer by sending alternating current signals across probes that are placed on both sides of the barrier. By studying the frequency-dependent electrical reaction of the cell barrier, an Impedance-based TEER Measurement system improves this process. It provides more information about tight-junction formation, membrane capacitance, and tissue health.
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