ECIS stands for Electric Cell-Substrate Impedance Sensing.
ECIS - (ë'sis) n. adj.
No. ECIS is a completely label free measurement.
No. The AC current used to monitor the cells is 10 X below their ability to sense any current. It's as if you are eavesdropping on the cells.
Impedance is a measure of the opposition to a sinusoidal AC current. Impedance extends the concept of DC resistance to AC circuits. It describes not only the amplitude of the voltage and current, but also the phase of the voltage relative to the current.
The ECIS system measures the change in impedance as cells cover a 250um diameter gold electrode and block the current flow.
Micromotion is the intricate movement and unique ruffling of cells.
We can apply a mathematical model of the impedance changes due to the presence of a cell layer, where the impedance data can be used to calculate cell morphological parameters including the barrier function of the cell layer, the spacing between the ventral side of the cell and the substratum, and the cell membrane capacitance. In the model cells are represented as disk shaped objects having insulating membrane surfaces and filled with conducting electrolyte.
Cells must adhere to the substrate.
© 2023 Applied BioPhysics, Inc.
185 Jordan Road Troy, NY 12180 / Phone: 518-880-6860 / Toll Free: 866-301-ECIS (3247) / Fax: 518-880-6865