钠离子指示剂

SBFI AM is a membrane-permeant, fluorescent Na+ indicator dye. It is selective for Na+ over K+ with Kd values of 20 and 120 mM for these ions, respectively. [1]Increasing concentration of Na+ increases the ratio of excitation efficiency at 330-345 nm to that at 370-390 nm with emission collected at 450-550 nm. [1] Therefore, ratio fluorometry and imaging can be performed with the same wavelengths. SBF AM is suitable for single intracellular dye injection and is typically used for high-resolution measurements of Na+ concentration in intact tissue through two-photon confocal imaging.[2]

ING-2 AM是一种能透过细胞膜的荧光钠离子(Na+)指示剂，与钠结合(Kd=20 mM)。激发和发射峰值(λ)分别为525 nm和545 nm。该化合物对K+离子具有20倍的选择性。在体外和原位实验中用于检测实时的钠流入。

SBFI (tetraammonium), a sodium-sensitive fluorescence indicator and the tetraammonium salt of SBFI, operates effectively at an excitation wavelength of 333 nm and an emission wavelength of 539 nm [1].

SBFI是一种可渗透膜的荧光Na+指示剂染料，激发波长为340 nm，荧光团发射波长为450 nm。SBFI对Na+的选择性高于K+，这些离子的Kd值分别为20 mM和120 mM。