Rhodamine B hydrazide
(Synonyms: 若丹明B酰肼) 目录号 : GC44832
A fluorescent probe
Cas No.:74317-53-6
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
本方案仅提供一个指导，请根据您的具体需要进行修改。
1. 制备染色液
(1)配置储存液:使用DMSO溶解Rhodamine B hydrazide，配置浓度为5-10mM的储存液。
注意:未使用的储存液分装后在-20℃或-80℃避光保存，避免反复冻融。
(2)配置工作液:用合适的缓冲液(如:无血清培养基或PBS)稀释储存液，配制浓度为5-10μM的工作液。
注意:请根据实际情况调整工作液浓度，现用现配。
2. 细胞悬浮染色
(1)悬浮细胞：经4℃、1000g离心3-5分钟，弃去上清液，用PBS清洗两次，每次5分钟。
(2)贴壁细胞：使用PBS清洗两次，加入胰酶消化细胞，消化完成后经1000g离心3-5min。
(3)加入Rhodamine B hydrazide工作溶液重悬细胞，37℃避光孵育2h。不同细胞最佳孵育时间不同，请根据具体实验需求自行摸索。
(4)孵育结束后，经1000g离心5分钟，去除上清液，加入PBS清洗2-3次，每次5分钟。
(5)用预温的无血清细胞培养基或PBS重悬细胞，通过荧光显微镜或流式细胞术观察。
3. 细胞贴壁染色
(1)在无菌盖玻片上培养贴壁细胞。
(2)从培养基中移走盖玻片，吸出过量的培养基，将盖玻片放在潮湿的环境中。
(3)从盖玻片的一角加入100μL的染料工作液，轻轻晃动使染料均匀覆盖所有细胞。
(4) 37℃避光孵育2h。不同细胞最佳孵育时间不同，请根据具体实验需求自行摸索。
(5)孵育结束后吸弃染料工作液，使用预温的培养液清洗盖玻片2~3次。
4. 检测胞内产生的一氧化氮
(1) 将细胞与5μM Rhodamine B hydrazide（2.5%，v/v DMSO）于37℃避光孵育4小时；
(2) 弃去染液，使用PBS清洗两次；
(3) 将细胞与与含有375μM SNAP（S-nitroso-N-acetyl-D,L-penicillamine，一种NO释放剂）的DMEM于37℃避光孵育2小时；
(4) 使用PBS清洗两次，然后将样本浸泡于PBS中。
5. 显微镜检测：Rhodamine B hydrazide的最大激发波长和发射波长分别为546/610nm。
注意事项：
1）荧光染料均存在淬灭问题，请尽量注意避光，以减缓荧光淬灭。
2）为了您的安全和健康，请穿实验服并戴一次性手套操作。
References:
[1]. Chi-Ming Wu,et,al. Sensitivity evaluation of rhodamine B hydrazide towards nitric oxide and its application for macrophage cells imaging. 2011 Dec 5;708(1-2):141-8. doi: 10.1016/j.aca.2011.10.005. Epub 2011 Oct 8.
Rhodamine B hydrazide is a water-soluble fluorescent probe with excitation/emission spectra of 510/578 nm, respectively. It has been used for the detection of copper, peroxynitrite, nitric oxide, hydrogen peroxide, glucose, diacetyl, and hemoglobin.
| Cas No. | 74317-53-6 | SDF | |
| 别名 | 若丹明B酰肼 | ||
| Canonical SMILES | CCN(CC)C1=CC2=C(C=C1)C3(C(C=CC=C4)=C4C(N3N)=O)C5=CC=C(N(CC)CC)C=C5O2 | ||
| 分子式 | C28H32N4O2 | 分子量 | 456.6 |
| 溶解度 | DMF: 30 mg/ml,DMF:PBS(pH7.2) (1:2): 0.33 mg/ml,DMSO: 20 mg/ml,Ethanol: 0.1 mg/ml | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.1901 mL | 10.9505 mL | 21.901 mL |
| 5 mM | 0.438 mL | 2.1901 mL | 4.3802 mL |
| 10 mM | 0.219 mL | 1.0951 mL | 2.1901 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Cellulose Acetate Fabrics Loaded with Rhodamine B hydrazide for Optical Detection of Cu(II)
Molecules 2020 Aug 17;25(16):3751.PMID:32824621DOI:10.3390/molecules25163751.
In this work, different materials were fabricated from cellulose acetate, loaded with Rhodamine B hydrazide and tested as Cu(II) optical sensor. We prepared membranes displaying a sub-micron porous structure using the phase inversion technique, clusters of fibers with varying diameter depending on the preparation procedure using electrospinning, and casted films presenting a smooth non porous structure. Loading of Rhodamine B hydrazide on the fabrics after their production was found to be the best procedure to ensure the stability of the dye in the polymeric materials. Absorption and emission analysis of the solid substrates revealed the presence of the dye on the porous fabrics and allowed to choose the most suited materials and loading conditions to test their response towards Cu(II) ions. Reaction of the loaded Rhodamine B hydrazide with Cu(II) was confirmed by absorption and emission spectroscopies and by confocal fluorescence imaging, through detection of the product rhodamine B. The results point to promising sensing applications of the prepared composite materials.
Protein carbonyl determination by a rhodamine B hydrazide-based fluorometric assay
Redox Biol 2018 Jul;17:236-245.PMID:29727801DOI:10.1016/j.redox.2018.04.017.
A new fluorometric assay is presented for the ultrasensitive quantification of total protein carbonyls, and is based on their specific reaction with Rhodamine B hydrazide (RBH), and the production of a protein carbonyl-RBH hydrazone the fluorescence of which (at ex/em 560/585 nm) is greatly enhanced by guanidine-HCl. Compared to the fluorescein-5-thiosemicarbazide (FTC)-based fluorometric assay, the RBH assay uses a 24-fold shorter reaction incubation time (1 h) and at least 1000-fold lower protein quantity (2.5 µg), and produces very reliable data that were verified by extensive standardization experiments. The protein carbonyl group detection sensitivity limit of the RBH assay, based on its standard curve, can be as low as 0.4 pmol, and even lower. Counting the very low protein limit of the RBH assay, its cumulative and functional sensitivity is 8500- and 800-fold higher than the corresponding ones for the FTC assay. Neither heme proteins hemoglobin and cytochrome c nor DNA interfere with the RBH assay.
Influence of ortho group in Rhodamine B hydrazide based Schiff base for selective recognition of Cu2+ and Fe3+ ions: A mechanistic approach by DFT and colorimetric studies
Spectrochim Acta A Mol Biomol Spectrosc 2023 Apr 5;290:122271.PMID:36580752DOI:10.1016/j.saa.2022.122271.
Herein we have implemented a computational approach in designing sensor molecules for the selective recognition of Cu2+ and Fe3+ ions. Seven rhodamine B hydrazide-based Schiff base derivatives were designed and analysed their chemosensing properties against Cu2+ and Fe3+ ions in ethanol solution theoretically. The theoretical calculations revealed that the selective recognition of Cu2+ and Fe3+ ions takes place via spirolactam ring-opening and there is a pivotal role of ortho substituents and N-heteroatoms. The two best chemosensors were synthesised and used for the detection of Cu2+ and Fe3+ ions by colorimetric methods.
Water-Dispersible Rhodamine B hydrazide Loaded TiO₂ Nanoparticles for "Turn On" Fluorimetric Detection and Imaging of Orthosilicic Acid Accumulation In-Vitro in Nephrotoxic Kidney Cells
J Nanosci Nanotechnol 2018 Dec 1;18(12):8142-8154.PMID:30189931DOI:10.1166/jnn.2018.16338.
Silica (SiO2) is the inevitable form of silicon owing to its high affinity for oxygen, existing as a geogenic element perpetrating multifarious health problems when bioavailable via anthropogenic activities. The hydrated form of silica viz. orthosilicic acid (H4SiO4) excessively displays grave toxicity, attributed to prolonged exposure and incessant H+ ions generating capacity inflicting pulmonary toxicity and renal toxicity silica. The diverse deleterious potency of silica highlights the desirability of selective and sensitive detection of toxic species (mainly orthosilicic acid) bioaccumulation in affected living human cells. In this paper we have reported, the design of water-dispersible turn-on fluorimetric sensing material for the detection of orthosilicic acid in the aqueous phase and in live cells. The sensing material was prepared by adsorbing a suitable rhodamine derivative (i.e., Rhodamine B hydrazide (Rh1)) on water dispersible TiO2 nanoparticles. The function of the sensing system, which is composed of Rh1 and TiO2 (Rh1@TiO2), is accredited to H+ ion (from orthosilicic acid) induced spirolactam ring-opening of the rhodamine derivative generating orange fluorescence and bright pink colouration. The sensing system was efficiently utilized for fluorimetric detection and imaging of orthosilicic acid accumulation in-vitro in human kidney cells (HK cells). To the best of our knowledge, this is the first time this sensing system (Rh1@TiO2) is reported for detection of toxic silica species accumulation in-vitro in human kidney cells. The advantages, such as good water dispersibility, the absence of organic solvents during fluorimetric studies, quick turn-on type signal transduction, low-level imaging, which are offered by the synthesized sensing material (Rh1@TiO2), make it a potential candidate to fabricate medical tool for early identification of silicainduced nephrotoxicity, which can help to reduce the burden and risk of chronic kidney disease development.
Sensitivity evaluation of Rhodamine B hydrazide towards nitric oxide and its application for macrophage cells imaging
Anal Chim Acta 2011 Dec 5;708(1-2):141-8.PMID:22093357DOI:10.1016/j.aca.2011.10.005.
A colorless and non-fluorescent rhodamine derivative, Rhodamine B hydrazide (RH), is applied to detect nitric oxide and form fluorescent rhodamine B (RB). The reaction mechanism of RH with NO is proposed in this study. The probe shows good stability over a broad pH range (pH>4). Furthermore, fluorescence intensity of RH displays an excellent linearity to the NO concentration and the detection limit is as low as 20 nM. A 1000-fold fluorescence turn-on from a dark background was observed. Moreover, the selectivity study indicated that the fluorescence intensity increasing in the presence of NO was significantly higher than those of other reactive oxygen/nitrogen species. In exogenously generated NO detection study, clear intracellular red fluorescence was observed in the presence of S-nitroso-N-acetyl-D,L-penicillamine (SNAP, a kind of NO releasing agent). In endogenously generated NO detection study, increasing incubation time of RH with lipopolysaccharied (LPS) pre-treated cells could obtain a highly fluorescent cell image. These cell imaging results demonstrated that RH can efficiently penetrate into Raw 264.7 cells and be used for detection of exogenously and endogenously generated nitric oxide.