Potassium Assays
Functional evaluation of potassium ion channels in a cell is of critical importance in the drug discovery process, particularly when it involves cardiac safety. The FLIPR® Potassium Assay Kit exploits the permeability of thallium ions (Tl+) through both voltage- and ligand-gated potassium (K+) channels. In this assay, a novel, highly-sensitive Tl+ indicator dye produces a bright fluorescent signal proportional to the number of potassium channels in the open state providing a functional indication of the potassium channel activities