Fluo-4 钙成像试剂盒
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Fluo-4 钙成像试剂盒
Invitrogen™

Fluo-4 钙成像试剂盒

Fluo-4 钙成像试剂盒设计用于通过成像应用进行钙通量特定检测。结合钙后,可以检测到荧光发射大幅增强(>100 倍)。为了尽可能缩短得出实验结果的时间,该试剂盒包含检测活细胞钙通量所需的所有试剂。了解有关离子指示剂(包括钙、钾了解更多信息
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货号数量
F104891 Kit
货号 F10489
价格(CNY)
5,652.00
飞享价
Ends: 31-Dec-2025
7,610.00
共减 1,958.00 (26%)
Each
添加至购物车
数量:
1 Kit
价格(CNY)
5,652.00
飞享价
Ends: 31-Dec-2025
7,610.00
共减 1,958.00 (26%)
Each
添加至购物车
Fluo-4 钙成像试剂盒设计用于通过成像应用进行钙通量特定检测。结合钙后,可以检测到荧光发射大幅增强(>100 倍)。为了尽可能缩短得出实验结果的时间,该试剂盒包含检测活细胞钙通量所需的所有试剂。

了解有关离子指示剂(包括钙、钾、pH 值和膜电位指示剂)的更多信息›

Fluo-4 钙成像试剂盒的特点包括:

•可利用标准 FITC 滤光片检测钙结合 Fluo-4 染色剂(激发/发射波长 494/506 nm)发射的荧光
•结合钙后,荧光强度增加 >100 倍
•缓冲液中 Ca2+ 的 Kd:∼335 nM
• 包含所有必需试剂,从而缩短了得出实验结果的时间
•结合钙后,荧光增强且波长稍有变化

包括所有必需试剂
Fluo-4 钙成像试剂盒包含通过成像应用检测钙通量所需的所有必要组分。除了 Fluo-4 染色剂之外,试剂盒还包含 PowerLoad™ 浓缩液、10X Neuro 背景抑制剂溶液以及丙磺舒。

标记钙离子指示剂(如 Fluo-4 染色剂)是结合钙后荧光增强的分子。Fluo-4 是 Fluo-3 的类似物,具有两个关键化学差异,导致在 488 nm 波长处的荧光激发增强,从而产生更高的荧光信号水平(结合钙后的荧光强度增加倍数 >100)。为了便于使用,Fluo-4 染色剂以即用型溶液形式提供。

为了易于细胞加载,Fluo-4 钙成像试剂盒包括 PowerLoad™ 浓缩液。得益于 PowerLoad™ 溶液的独特性质,它可以在完全培养基中使用,因此减少了更换培养基或在无血清培养基中加载的负面影响。

通过添加随附的 Neuro 背景抑制剂,可以大幅减少由生长培养基中的组分引起的基线自发荧光。该溶液专门配制用于神经元细胞,不会引起渗透压休克。此外,它已经成功用于许多不同细胞类型,可有效抑制背景荧光而不会影响在测定中生成的特定细胞荧光。

Fluo-4 钙成像试剂盒还随附专有的水溶性丙磺舒(通常用于抑制细胞转运,因此可降低基线信号)。
仅供科研使用。不可用于诊断程序。
规格
染料类型钙指示剂
数量1 Kit
适用于(应用)钙含量测定试剂盒
产品线Molecular Probes™
产品类型钙成像试剂盒
Unit SizeEach
内容与储存
包含:
  • 50 µL 溶于 DMSO 的 Fluo-4 AM 染料
  • 500 µL PowerLoad™ 浓缩液
  • 5 mL Neuro 背景抑制剂
  • 1小瓶丙磺舒
  • 储存于 2°C 至 8°C
  • 切勿冷冻
  • 常见问题解答 (FAQ)

    I am doing calcium flux imaging with your Fura-2 calibration kit, but am seeing a large variability in ratio in different places around the slide. I am correcting for uniform illumination, using the product as directed, and sealing the coverslip with nail polish.

    The nail polish may be the problem. The Kd value (calcium sensitivity) changes depending upon the dye's environment. Nail polish has solvents that can leech under the coverslip and cause variability. We recommend either going without a sealing or sealing with melted paraffin painted on the coverslip edges with a cotton-tipped applicator (paraffin is hydrophobic and has no solvents).

    Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

    I need to label cells with Fluo-4, AM, for a calcium flux assay. How long after labeling will the dye be retained?

    After loading dye into the cells, intracellular esterases remove the 'AM' moiety from the dye. When the 'AM' group is removed, the dye is able to bind calcium and fluoresce. Since the dye is not covalently bound to any cellular components, it may be actively effluxed from the cell. The rate of efflux is dependent upon the inherent properties of the cell, culture conditions and other factors. The dye may be retained for hours, days or even weeks or lost in a matter of minutes. The use of Probenecid (Cat. No. P36400) limits loss by active efflux.

    Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

    Can the Fluo-4 Calcium Imaging Kit (Cat. No. F10489) components be purchased separately?

    Yes. The following components are sold separately:
    Component B: PowerLoad Concentrate (Cat. No. P10020)
    Component C: BackDrop Background Suppressor for Microplate Assays (Cat. No. B10512)
    Component D: Probenecid, Water Soluble (Cat. No. P36400)