DiD' 固体;DiIC18(5) 固体(1,1'-双十八烷基-3,3,3',3'-四甲基吲哚菁,4-高氯酸盐)
Invitrogen17万+抗体限时买二赠一,靶点广,灵活用!
DiD' 固体;DiIC<sub>18</sub>(5) 固体(1,1'-双十八烷基-3,3,3',3'-四甲基吲哚菁,4-高氯酸盐)
Invitrogen™

DiD' 固体;DiIC18(5) 固体(1,1'-双十八烷基-3,3,3',3'-四甲基吲哚菁,4-高氯酸盐)

发远红外荧光的亲脂性碳氰酸酯 DiD 是一种比 DiI 波长更长的模拟物。该产品以固体形式供货,方便将晶体直接上样至膜上;其在水中发弱荧光,但在掺入膜中后会发出极其明亮且光稳定的荧光。在脂质环境中,其具有超高的消光系数和较短激发态寿命(∼1 纳秒了解更多信息
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货号数量
D775710 mg
货号 D7757
价格(CNY)
2,367.00
Online Exclusive
Ends: 31-Dec-2025
3,209.00
共减 842.00 (26%)
Each
添加至购物车
数量:
10 mg
价格(CNY)
2,367.00
Online Exclusive
Ends: 31-Dec-2025
3,209.00
共减 842.00 (26%)
Each
添加至购物车
发远红外荧光的亲脂性碳氰酸酯 DiD 是一种比 DiI 波长更长的模拟物。该产品以固体形式供货,方便将晶体直接上样至膜上;其在水中发弱荧光,但在掺入膜中后会发出极其明亮且光稳定的荧光。在脂质环境中,其具有超高的消光系数和较短激发态寿命(∼1 纳秒)。添加到细胞中后,这种染料就会在细胞膜内侧向扩散。
仅供科研使用。不可用于诊断程序。
规格
颜色红色
检测方法荧光
适用于(设备)荧光显微镜
数量10 mg
运输条件室温
产品类型DiD 固体 DiIC18(5) 固体
亚细胞定位细胞膜&脂质, Lipids
Unit SizeEach
内容与储存
室温避光储存。

常见问题解答 (FAQ)

为什么在我用甲醇固定细胞之后,神经元示踪剂信号全部丢失了?

如果您选择的示踪剂是亲脂性染料并且用甲醇固定,脂质会随着甲醇流失。如果您使用甲醇固定,可以选择能够共价结合神经元内的蛋白质的示踪剂。

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。

我用DiI标记我的神经元,然后固定和通透,但没有获得信号。 哪个环节出了问题?

DiI是一种亲脂性染料,多数保留在细胞脂质内。当细胞经去垢剂通透或是用乙醇固定时,会去除掉脂质和染料。如果需要通透,可以使用CM-DiI标记,因为CM-DiI会共价结合膜里面的蛋白;部分信号会随着固定/通透丢失,但残留的信号仍足以被检测出。

我该如何为自己的试验选择示踪对象?

要考虑的因素有示踪对象的大小、给样方式(注射,直接上样到组织等),示踪对象是否需要固定。以下链接详细介绍了我们提供的各类神经元示踪剂的详细信息以及选择方法:

•神经元示踪(https://www.thermofisher.com/us/en/home/life-science/cell-analysis/cell-tracing-tracking-and-morphology/neuronal-tracing.html)
•选择示踪剂(https://www.thermofisher.com/us/en/home/references/molecular-probes-the-handbook/fluorescent-tracers-of-cell-morphology-and-fluid-flow/choosing-a-tracer.html)
•成像分析(http://assets.thermofisher.com/TFS-Assets/BID/Reference-Materials/bioprobes-50-journal.pdf)

有没有无需显微注射标记单个神经元的方法?

固体和结晶形式的DiI以及其他相关染料(货号D282,D3911,D7757,和D12731)有时与一个特定的神经元接触,通过膜侧向扩散染上整个细胞。此外,我们的NeuroTrace组织标记糊剂也可挑到针上,置于特定的神经元上。 有关我们的神经元细胞标记方法的比较结果请参阅下表。 产品:标记方式:标记强度:特征 神经元特异性抗体:针对神经细胞表达蛋白的一抗:与蛋白质表达量成比例:唯一的神经元特异性标记方式。 亲脂性神经元示踪剂:疏水性染料掺入到细胞中的脂质:由于细胞中含有大量的脂类,这种标记方式能提供最强的标记:能够跟踪整个样品的神经元。 荧光标记的右旋糖苷:通常右旋糖苷采用显微注射:所有的细胞质可能被标记,标记密度可能会更高:能够标记单个神经元,从而避免了荧光背景干扰。 膜电位指示剂:染料通过水性缓冲液上样到活细胞里:取决于周围电场引起的结构变化,或者去极化引起的染料流入:膜电位的变化在各种生理进程中发挥核心作用,包括神经脉冲波传播,肌肉收缩以及细胞信号传导过程。

引用和文献 (71)

引用和文献
Abstract
Simultaneous measurement of RBC velocity, flux, hematocrit and shear rate in vascular networks.
Authors:Kamoun WS, Chae SS, Lacorre DA, Tyrrell JA, Mitre M, Gillissen MA, Fukumura D, Jain RK, Munn LL,
Journal:Nat Methods
PubMed ID:20581828
Not all tumor vessels are equal. Tumor-associated vasculature includes immature vessels, regressing vessels, transport vessels undergoing arteriogenesis and peritumor vessels influenced by tumor growth factors. Current techniques for analyzing tumor blood flow do not discriminate between vessel subtypes and only measure average changes from a population of dissimilar vessels. We ... More
Dynamics of a chemoattractant receptor in living neutrophils during chemotaxis.
Authors:Servant G, Weiner OD, Neptune ER, Sedat JW, Bourne HR
Journal:Mol Biol Cell
PubMed ID:10198064
'Persistent directional movement of neutrophils in shallow chemotactic gradients raises the possibility that cells can increase their sensitivity to the chemotactic signal at the front, relative to the back. Redistribution of chemoattractant receptors to the anterior pole of a polarized neutrophil could impose asymmetric sensitivity by increasing the relative strength ... More
Regulation of C-cadherin function during activin induced morphogenesis of Xenopus animal caps.
Authors:Brieher WM, Gumbiner BM
Journal:J Cell Biol
PubMed ID:8034750
'Treatment of Xenopus animal pole tissue with activin results in the induction of mesodermal cell types and a dramatic elongation of the tissue. The morphogenetic movements involved in the elongation appear similar to those in normal gastrulation, which is driven by cell rearrangement and cell intercalations. We have used this ... More
Chemical imaging of tissue in vivo with video-rate coherent anti-Stokes Raman scattering microscopy.
Authors:Evans CL, Potma EO, Puoris'haag M, Côté D, Lin CP, Xie XS
Journal:Proc Natl Acad Sci U S A
PubMed ID:16263923
'Imaging living organisms with molecular selectivity typically requires the introduction of specific labels. Many applications in biology and medicine, however, would significantly benefit from a noninvasive imaging technique that circumvents such exogenous probes. In vivo microscopy based on vibrational spectroscopic contrast offers a unique approach for visualizing tissue architecture with ... More
In vivo migration of dendritic cells differentiated in vitro: a chimpanzee model.
Authors:Barratt-Boyes SM, Watkins SC, Finn OJ
Journal:J Immunol
PubMed ID:9144465
'Dendritic cells with potent Ag-presenting function can be propagated from peripheral blood using recombinant cytokines, and these cells have potential usefulness as immunotherapeutic agents in the treatment of cancer and other disease states. However, it is not known if these in vitro differentiated dendritic cells have the capacity to migrate ... More