特徴

• ION Potassium Green - 4, potassium indicator, membrane permeable.
• Formerly known as Asante Potassium Green - 4 （APG-4）.
• Compatible with a wide variety of detectors including fluorescent microscopes, plate readers, flow cytometers, and fluorescent indicator-doped solid-state sensors.Excitation： 525 nm | Emission： 545 nm | Kd： 7 mM | Purity： ＞95％The IPG family of indicators are the best-in-class replacements for the legacy K⁺ indicator, PBFI.
• Unlike PBFI, the spectral properties of the IPG family of K⁺ indicators make them convenient to use with common filter sets （e.g. YFP and FITC） as well as multiphoton approaches, and the range of K⁺ affinities make them useful for applications as diverse as extracellular K⁺ sensing to monitoring intracellular K⁺ dynamics.
• These molecules are small, synthetic fluorochromes which incorporate a K⁺-binding moiety.
• Under conditions where K⁺ is not bound, the fluorescence of the sensor is significantly quenched.
• When K⁺ is bound, the quenching is relieved, and the fluorescence of the sensor dramatically increases.