Image-iT™ FX 信号增强剂 ReadyProbes™ 试剂
Invitrogen™

Image-iT™ FX 信号增强剂 ReadyProbes™ 试剂

Image-iT™ FX Signal Enhancer ReadyProbes™ Reagent dramatically reduces background fluorescence resulting from non-specific staining during secondary detection using conjugates of streptavidin or secondary antibodies.
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货号数量
R371076瓶
货号 R37107
价格(CNY)
2,864.00
Online exclusive
Ends: 31-Dec-2026
3,977.00
共减 1,113.00 (28%)
Each
数量:
6瓶
价格(CNY)
2,864.00
Online exclusive
Ends: 31-Dec-2026
3,977.00
共减 1,113.00 (28%)
Each

Image-iT™ FX Signal Enhancer ReadyProbes™ Reagent dramatically reduces background fluorescence resulting from non-specific staining during secondary detection using conjugates of streptavidin or secondary antibodies. This reagent is applied directly to slides or coverslips containing fixed and permeabilized cell or tissue samples prior to staining with fluorescent probes.

  • Easy protocol – apply ready-made solution using a dropper bottle
  • Compatible with the other steps in your immunostaining protocol
  • Effective with most fluorescent labels
  • Stable at room temperature – keep handy at your scope or cell culture area
Image-IT™ FX 信号增强剂 ReadyProbes™ 试剂可大幅降低使用链霉亲和素或二抗偶联物进行二次检测期间因非特异性染色而产生的背景荧光。该试剂可在用荧光探针染色之前直接应用于包被固定和透化的细胞或组织样品的载玻片或盖玻片。

•操作简单—使用滴管添加现成的溶液
• 与免疫染色方案中的其他步骤兼容
• 对大多数荧光标记有效
• 室温下稳定—可放置在视野范围内或细胞培养区域,方便取用

查看其他 ReadyProbes™ 细胞染色试剂
查找更多固定细胞成像工具

细胞成像应用
Image-iT™ FX 信号增强剂是一种可有效阻断背景染色的产品,这种背景染色是由多种荧光染料与细胞和组织成分之间的非特异性相互作用导致的。在染色前对固定、透化的细胞采用 Image-iT™ FX 信号增强剂时,可在很大程度上消除因使用链霉亲和素荧光偶联物和抗体偶联物而产生的背景染色。

使用建议
•在进行免疫染色之前,将 Image-iT™ FX 信号增强剂直接应用于包被细胞或组织样品的载玻片或盖玻片。
•固定/透化步骤后,只需清洗、添加足够覆盖样品的液滴,孵育 30 分钟然后进行正常的染色操作。
•根据需要,在使用 Image-iT™ 信号增强剂 ReadyProbes™ 试剂封闭后可进行其他封闭步骤
仅供科研使用。不可用于诊断程序。
规格
产品规格Bottle(s)
产品线Image-iT、ReadyProbes
数量6瓶
产品类型FX 信号增强试剂
溶液类型信号增强剂
Unit SizeEach
内容与储存
2.5 mL 滴瓶

在 ≤ 25°C 下储存。

常见问题解答 (FAQ)

当我分析click标记样品时,观测到较高的本底干扰,这是什么原因所致?如何减少本底干扰?

click反应在叠氮化物和炔烃类间是非常有选择性的。生物体系不可能有其他副反应。任何非特异性本底都是由于染料和多种细胞组件的非共价结合造成的。在click反应后,Select FX信号增强剂在减少染料非特异性电荷连接方面的作用失效;我们不推荐将其与Click-iT检测试剂一同使用。减少本底干扰的最佳方法是增加BSA洗涤的次数。您应始终在同等的处理和检测条件下做无染料或无click反应对照,以证实本底确系染料而非自发荧光所致。此外,您还可在无EdU 或无-EU,仅含溶剂的对照样本上进行完整的click反应,验证click反应信号的特异性。 

我用了一种神经元特异性抗体标记我的神经元,怎样才能减少非特异性抗体结合?

•需要进行封闭操作以减少由非特异性抗体结合产生的背景荧光。常用的封闭步骤是加入2-5%牛血清白蛋白(fraction V defatted BSA)溶液。另一种方法是采用5-10%二抗种属来源的血清溶液。例如,使用山羊抗小鼠IgG二抗时,样品可以被5-10%正常山羊血清有效封闭。为了进一步减少背景荧光,可以使用Image-iT FX 信号增强剂作为预封闭步骤,减少由偶联物上的染料和细胞组分之间电荷的相互作用引起的非特异性标记。
•如果您使用二抗,确保抗体的种属与样品不同。例如不要对小鼠组织使用抗小鼠二抗。
•滴定测定抗体浓度,使用能获得充足的信号的最低浓度。
•试试荧光标记的一抗,因为它应会降低背景干扰,但这样做也会降低信号强度。

我在对照细胞的细胞核和线粒体中看到非特异性结合,但是蛋白质结合不足以将其终止。我应该怎么做?

这种二抗非特异性结合的现象可能是由染料电荷引起的,例如带负电荷的染料被带正电荷的细胞组分吸引。为了阻止该现象,使用Image-iT FX Signal Enhancer(货号I36933和R37107)能够抑制结合物上的染料与细胞组分之间的电荷作用,进而阻断非特异性结合。

I used Image-iT FX Signal Enhancer solution to get rid of nonspecific nuclear labeling with Alexa Fluor 568 secondary antibody, but I also saw a significant reduction in my specific mitochondrial antibody labeling. Why is this and what can I do?

The Image-iT FX Signal Enhancer reduces non-specific binding of dye conjugates by blocking positively-charged areas of cells or tissues that attract negatively-charged dyes. In cells after fixation, some positively-charged structures are the nuclei and mitochondria. Thus, you would expect to see a reduction in both mitochondrial and nuclear signal. The lower signal you see afterward is the specific mitochondrial signal; the fluorescence that was lost was the non-specific labeling.

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

Can I use the Image-iT FX Signal Enhancer instead of my normal blocking solution (BSA or serum)?

No. Image-iT FX Signal Enhancer is not a protein blocker, like BSA, normal serum, or other commercial antibody blockers. Use it as a separate step to block non-specific charge-based binding of dyes to cellular components.

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

引用和文献 (10)

引用和文献
Abstract
Functional scaffold-free 3-D cardiac microtissues: a novel model for the investigation of heart cells.
Authors:Desroches BR, Zhang P, Choi BR, King ME, Maldonado AE, Li W, Rago A, Liu G, Nath N, Hartmann KM, Yang B, Koren G, Morgan JR, Mende U,
Journal:Am J Physiol Heart Circ Physiol
PubMed ID:22427522
To bridge the gap between two-dimensional cell culture and tissue, various three-dimensional (3-D) cell culture approaches have been developed for the investigation of cardiac myocytes (CMs) and cardiac fibroblasts (CFs). However, several limitations still exist. This study was designed to develop a cardiac 3-D culture model with a scaffold-free technology ... More
Generation of an induced pluripotent stem cell line (TRNDi008-A) from a Hunter syndrome patient carrying a hemizygous 208insC mutation in the IDS gene.
Authors:Hong J, Xu M, Li R, Cheng YS, Kouznetsova J, Beers J, Liu C, Zou J, Zheng W
Journal:Stem Cell Res
PubMed ID:31071499
'Mucopolysaccharidosis Type II (MPS II), also known as Hunter syndrome, is a rare X-linked genetic disease caused by mutations in the IDS gene encoding iduronate 2-sulfatase (I2S). This is a multisystem disorder with significant variation in symptoms. Here, we document a human induced pluripotent stem cell (iPSC) line generated from ... More
Three-dimensional residual channel attention networks denoise and sharpen fluorescence microscopy image volumes.
Authors:
Journal:Nat Methods
PubMed ID:34059829
The aberrant upregulation of exon 10-inclusive SREK1 through SRSF10 acts as an oncogenic driver in human hepatocellular carcinoma.
Authors:
Journal:Nat Commun
PubMed ID:35296659
HIV-infected macrophages resist efficient NK cell-mediated killing while preserving inflammatory cytokine responses.
Authors:
Journal:Cell Host Microbe
PubMed ID:33571449