$110.00
Ratiometric calcium (Ca²⁺) indicator, membrane impermeable.
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Size: 1 mg
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1052B
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$110.00
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Size: 20 x 50 ug
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1052E
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$110.00
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Fura-2 is the most popular UV-excitable, ratiometric green indicator for calcium (Ca²⁺) measurements. Ex/Em: 340/505 nm can be used to measure Ca²⁺-bound Fura-2, and Ex/Em: 380/505 nm can be used to detect Ca²⁺-free Fura-2. Ratiometry is optimal for imaging applications where quantification of intracellular Ca²⁺ concentrations is desired, and reduces effects of photobleaching, heterogenous dye loading, and variable cell morphology.
Fura-2 K⁺ salt is a membrane impermeable form of Fura-2 that can be used in lipid membrane-free systems, in liposomes, or can be introduced into cells by electroporation, microinjection or other methods.
