83-1164-53　PBFI K+ Salt - green fluorescent potassium indicator 1 mg　3033B

特徴

• Ratiometric potassium indicator, membrane impermeableExcitation： 340, 380 nm | Emission： 505 nm | Kd： 5 mMPBFI is a UV-excitable, ratiometric green indicator for intracellular potassium （K⁺） measurements.
• Ex/Em： 340/505 nm can be used to measure K⁺-bound PBFI, and Ex/Em： 380/505 nm can be used to detect K⁺-free PBFI.
• It is 1.5X more selective for K⁺ over Na⁺, and works well in cytosolic conditions where [K⁺]/[Na⁺] is ～10.
• Ratiometry is optimal for imaging applications where quantification of intracellular K⁺ concentrations is desired, and reduces effects of photobleaching, heterogenous dye loading, and variable cell morphology.
• PBFI K⁺ salt is a membrane impermeable form of PBFI that can be used in lipid membrane-free systems, in liposomes, or can be introduced into cells by electroporation, microinjection or other methods.

仕様

• サイズ：1 mg
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