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产地 | American |
品牌 | AAT Bioquest |
货号 | CS21800 |
用途 | Research Grade |
包装规格 | 1 mg |
纯度 | 98%% |
CAS编号 | |
是否进口 | 是 |
CytoTrace Ultra Green新一代荧光示踪探针 ,非常适合跟踪细胞的运动或位置。该染料可以很好地保留在细胞中,并且追踪活细胞数代。与在相同条件下的CMFDA相比,CytoTrace Ultra Green明显更亮,光稳定性更高并且更耐用。在组织固定后,这种染料产生的信号将非常稳定,使其成为与其他类型的分析方法(如细胞毒性等)结合用于多色应用的理想选择。 CytoTrace Ultra Green的激发光谱和发射光谱与FITC相同,并且与常见的红色荧光染料(例如Texas Red,Cy5,Cy7,iFluor 647和750,AlexaFluor®647和750)完全分离。 CytoTrace Ultra Green可轻松用于各种生物应用的活细胞跟踪,并与流式细胞仪和荧光显微镜兼容。
实验方案
简要概述
溶液配制
储备溶液配制
CytoTrace Ultra Green原液(2-10 mM):添加适量的DMSO充分混合以制成CytoTrace Ultra Green原液(2-10 mM)。注意:储备溶液应立即使用;所有剩余的溶液应等分,并在<-20 o C下冷冻。避免重复冻融循环,并避光。
工作溶液配制
CytoTrace Ultra Green工作溶液:通过用Hanks和20 mM Hepes缓冲液(HHBS)或自备的pH=7的缓冲液稀释DMSO储备液,制备0.5至5 μM的染料工作液,并离心。注意:在某些细胞类型,可能需要较低的浓度才能染色细胞。我们建议在进行实验之前针对每种细胞类型进行测试以获得最佳浓度使实验更顺利。
操作步骤
图示
图1. Jurkat细胞中CytoTrace Ultra Green与CMFDA的荧光强度比较。在37 ℃,5%CO2培养箱中,将Jurkat细胞用CytoTrace Ultra Green和CMFDA染料分别加载30分钟。使用带有FITC通道的ACEA NovoCyte 3000流式细胞仪测量荧光强度。
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