产品简介:
FDA是一种非荧光性疏水性荧光素衍生物,它可以穿透细胞膜进入细胞,通过细胞内酯酶催化水解二乙酸酯基团产生具有高强度的荧光产物荧光素。荧光分子在具有完整细胞膜的细胞内积累,因此这种绿色荧光可以作为一种细胞活力的标签。不具有完整细胞膜或者新陈代谢活性的细胞,不能在细胞内积累荧光产物,因此不能显现绿色荧光。FDA可以与染料PI联合使用,无活性的死细胞被PI着色,发出红色荧光;有活性的细胞PI无法着色,在FDA作用下,紧发出绿色荧光。这两种颜色可以很好的辨别死细胞与活细胞,与单一颜色检测相比,它提供了一种更为准确的活细胞定量检测方法。
英文注释:
FDA is a non-fluorescent hydrophobic fluorescein derivative that can pass through the cell membrane whereupon intracellular esterases hydrolyze the diacetate group producing the highly fluorescent product fluorescein. The fluorescein molecules accumulate in cells that possess intact membranes so the green fluorescence can be used as a marker of cell viability. Cells that do not possess an intact cell membrane or an active metabolism may not accumulate the fluorescent product and therefore do not exhibit green fluorescence. FDA may be used in combination with PI staining as the non-viable cells take up the PI and stain dead cells red whereas viable cells do not take up the PI and should only stain green. This 2-color separation of non-viable and viable cells may provide a more accurate quantitation of cell viability than single color analysis.
其他产品:
产品名称 | 货号 | 规格 |
iFluor™750山羊抗-兔子免疫球蛋白*交叉吸收* | 16720 | 200 ug |
iFluor™790的羊抗兔IgG(H + L)*Cross Absorbed* | 16721 | 200 ug |
trFluor™ Eu的山羊抗小鼠IgG(H+ L) | 16518 | 100 ug |
trFluor™Tb的山羊抗小鼠IgG(H+ L) | 16519 | 100 ug |
trFluor™ Eu羊抗鼠IgG(H + L)*Cross Adsorbed* | 16598 | 100 ug |
trFluor™Tb的羊抗鼠IgG(H + L)*Cross Adsorbed* | 16599 | 100 ug |
trFluor™ Eu山羊抗兔IgG(H + L) | 16668 | 100 ug |
trFluor™Tb的山羊抗兔IgG(H + L) | 16669 | 100 ug |
trFluor™ Eu山羊抗兔IgG(H + L)*Cross Absorbed* | 16725 | 100 ug |
trFluor™Tb的山羊抗兔IgG(H + L)*Cross Absorbed* | 16726 | 100 ug |