DiOC2(3)(3,3'-二乙基氧杂羰花青碘)
DiOC<sub>2</sub>(3)(3,3'-二乙基氧杂羰花青碘)
Invitrogen™

DiOC2(3)(3,3'-二乙基氧杂羰花青碘)

DiOC2(3) 是膜电位探针。其亦可用于通过流式细胞术,利用荧光发射比检测分析细菌活率了解更多信息
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货号数量
D14730100 mg
货号 D14730
价格(CNY)
3,543.00
Each
添加至购物车
数量:
100 mg
价格(CNY)
3,543.00
Each
添加至购物车
DiOC2(3) 是膜电位探针。其亦可用于通过流式细胞术,利用荧光发射比检测分析细菌活率。
仅供科研使用。不可用于诊断程序。
规格
检测方法荧光
数量100 mg
运输条件室温
子细胞定位细胞膜&脂质
颜色绿色
适用于(设备)荧光显微镜
产品类型DiOC2(3)
Unit SizeEach
内容与储存
室温避光储存。

常见问题解答 (FAQ)

当我使用膜电位指示剂时,看到神经元周围出现了较高的背景,如何降低背景干扰?

如果使用我们的FluoVolt 膜电势试剂盒(货号F10488),该试剂盒包含一种背景抑制剂,可改善这一问题。对于其他指标剂,可以考虑使用BackDrop 背景抑制剂(货号R37603、B10511和B10512)。

我用DiI一类的亲脂性花青染料进行细胞染色,但是当我试图继续用抗体标记时信号却丢失了。 这是什么原因所致?

由于这些染料插入脂质膜,任何对膜的破坏都将导致染料流失。这包括用Triton X-100之类的去垢剂或是甲醇之类的有机溶剂通透。通透是胞内抗体标记所必需的,但它会导致染料流失。相反,CFDA SE之类活性染料能够共价连接到细胞组分,因此可以在固定和通透之后更好的保留。

快反应膜电位探针和慢反应膜电位探针有什么区别?

在周围电场的作用下结构变化的分子可用作检测瞬时(毫秒级)电位变化的快反应探针。慢反应染料则会进入去极化细胞,结合蛋白或膜。增强去极化会造成额外的染料流入,增强荧光强度;过极化的特征则是荧光强度下降。快反应探针通常用于完整心脏组织的电位活动成像,或测量药理刺激引起的膜电位变化。慢反应探针常用于探索线粒体功能和细胞活力。

你们提供哪些类型的膜电位指示剂?我该如何根据自己的试验选择?

膜电位指示剂选择指南请见此处(https://www.thermofisher.com/us/en/home/life-science/cell-analysis/cell-viability-and-regulation/ion-indicators/membrane-potential-indicators.html)。

亲脂性示踪剂跨膜转运需要多久?FAST亲脂性染料能快多少?

转运过程相当缓慢:在活体组织中大约6 mm/天,在固定组织中更慢。亲脂性羰花青示踪剂从开始给样处扩散到神经元末端,可能需要数天甚至数周的时间。FAST DIO和DiI类似物(具有不饱和烷基尾)可以提高50%左右的转运速度。

引用和文献 (33)

引用和文献
Abstract
Analysis of P-glycoprotein-mediated membrane transport in human peripheral blood lymphocytes using the UIC2 shift assay.
Authors:Park SW, Lomri N, Simeoni LA, Fruehauf JP, Mechetner E
Journal:Cytometry A
PubMed ID:12766968
'BACKGROUND: During transport-associated adenosine triphosphate hydrolysis, P-glycoprotein (Pgp) undergoes conformation transitions detected by UIC2, a functional anti-Pgp monoclonal antibody. A newly developed UIC2 shift assay is based on increased UIC2 reactivity in the presence of Pgp substrates. All peripheral blood leukocytes express low Pgp levels. The existing antibody-based detection methods ... More
Fluorescent cationic probes of mitochondria. Metrics and mechanism of interaction.
Authors:Bunting JR, Phan TV, Kamali E, Dowben RM
Journal:Biophys J
PubMed ID:2605307
'Mitochondria strongly accumulate amphiphilic cations. We report here a study of the association of respiring rat liver mitochondria with several fluorescent cationic dyes from differing structural classes. Using gravimetric and fluorometric analysis of dye partition, we find that dyes and mitochondria interact in three ways: (a) uptake with fluorescence quenching, ... More
The repetitive calcium waves in the fertilized ascidian egg are initiated near the vegetal pole by a cortical pacemaker.
Authors:Speksnijder JE
Journal:Dev Biol
PubMed ID:1397683
'Ascidian eggs respond to fertilization with a series of repetitive calcium waves that originate mostly from the vegetal/contraction pole region (J. E. Speksnijder, C. Sardet, and L. F. Jaffe, 1990, Dev. Biol. 142, 246-249), where the myoplasm is concentrated during the first phase of ooplasmic segregation. This suggests that the ... More
Transmembrane inhibitors of P-glycoprotein, an ABC transporter.
Authors:Tarasova NI, Seth R, Tarasov SG, Kosakowska-Cholody T, Hrycyna CA, Gottesman MM, Michejda CJ
Journal:J Med Chem
PubMed ID:15916428
'Drug resistance mediated by ABC transporters such as P-glycoprotein (P-gp) continues to be a major impediment to effective cancer chemotherapy. We have developed a panel of highly specific peptide inhibitors of P-gp based on the structure of the transmembrane domains of the transporter. These peptides are thought to exert their ... More
DiOC2(3) is not a substrate for multidrug resistance protein (MRP)-mediated drug efflux.
Authors:Minderman H, Vanhoefer U, Toth K, Yin MB, Minderman MD, Wrzosek C, Slovak ML, Rustum YM
Journal:Cytometry
PubMed ID:8875050
'Multidrug resistance (MDR) is often related to expression of P-glycoprotein (Pgp) or Multidrug Resistance Protein (MRP). Pgp-mediated MDR can be evaluated by determining cellular retention of fluorescent substrates by flow cytometry. This study determined if agents used to evaluate Pgp function also can be used to evaluate MRP function. Cellular ... More