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        1. Dihydroethidium(DHE) 二氫乙錠(超氧化物陰離子熒光探針) |CAS 38483-26-0

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          產(chǎn)品說明書

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          已發(fā)表文獻(xiàn)

          產(chǎn)品描述

          Hydroethidine也稱為Dihydroethidium,是一種最常用的超氧化物陰離子熒光檢測探針,能有效地檢測活性氧類。這種染料可以自由地進(jìn)入細(xì)胞,在細(xì)胞內(nèi)超氧化物陰離子作用下脫氫形成溴化乙錠。溴化乙錠可以與RNADNA結(jié)合產(chǎn)生紅色熒光。當(dāng)細(xì)胞內(nèi)的超氧化物陰離子水平較高時,產(chǎn)生的溴化乙錠較多,紅色熒光就較強(qiáng),反之則較弱。這樣就可以用二氫乙錠進(jìn)行超氧化物陰離子水平的檢測。

          該探針已經(jīng)廣泛地用于NK細(xì)胞、中性粒細(xì)胞內(nèi)皮細(xì)胞、細(xì)胞HL60巨噬細(xì)胞的研究,并且作為一種重要的染料用于鑒定腫瘤中細(xì)胞的增殖和低氧性。

           

          產(chǎn)品性質(zhì)

          產(chǎn)品名稱(Product Name

          Dihydroethidium (Hydroethidium)

          CAS號(CAS NO.

          38483-26-0

          分子式(Molecular Formula

          C21H21N3

          分子量(Molecular Weight

          315.41

          激發(fā)和發(fā)射波長(Ex/Em

          518 nm/610 nm

          純度( Purity )

          ≥90%

          外觀(Appearance

          紅色粉末

          溶解性(Solubility

          溶于DMSO

          結(jié)構(gòu)式(Structure

          image.png

           

          運(yùn)輸和保存方法

          冰袋運(yùn)輸。粉末直接保存于-20℃,有效期2。產(chǎn)品易被氧化,建議分裝后-20℃避光密封保存,避免反復(fù)凍融,避光,保持干燥。

           

          注意事項

          1請勿吸入吞咽或者直接接觸皮膚和眼睛。

          2二氫乙錠容易氧化且見光易分解,一定要避光干燥保存。

          3)在沒有細(xì)胞和外界誘導(dǎo)劑存在的情況下,溶解在培養(yǎng)液或者緩沖溶液中PBS/ HBSS/ HEPES的染料會發(fā)生水解,被空氣或通過光誘導(dǎo)的方式氧化,而使溶液的熒光強(qiáng)度增加。

          4)為了您的安全和健康,請穿實驗服并戴一次性手套操作。

          5)本產(chǎn)品僅用于科研用途,禁止用于人身上。

           

          使用方法

          1. 工作液的配制
          本品以粉末形式提供,使用前需要經(jīng)過短暫離心,用高純度的DMSO制備成5~10 mM儲液。分裝后避光凍存于-20℃。使用前用緩沖液(PBS/ HBSS/ HEPES)稀釋母液至所需工作濃度,通常5~20 μM就可以滿足實驗需求,具體的濃度要根據(jù)實驗需要進(jìn)行進(jìn)一步的調(diào)整。


          2. 染色
          將細(xì)胞和染色液按照1:1的比例進(jìn)行混合(例如,100 μL的細(xì)胞懸液加入100 μL的染色工作液),室溫或37℃孵育60 min。


          3. 熒光顯微鏡觀察
          二氫乙錠本身為藍(lán)色熒光,最大激發(fā)波長為370 nm,最大發(fā)射波長為420 nm,脫氫后與RNADNA結(jié)合產(chǎn)生紅色熒光,最大激發(fā)波長為300 nm,最大發(fā)射波長為610 nm,實際觀察時也可以使用518 nm作為激發(fā)波長。


          客戶使用本產(chǎn)品發(fā)表的科研文獻(xiàn)(部分)

          [1] Feng L, et al. Neutrophil-like Cell-Membrane-Coated Nanozyme Therapy for Ischemic Brain Damage and Long-Term Neurological Functional Recovery. ACS Nano. 2021 Feb 23;15(2):2263-2280. doi: 10.1021/acsnano.0c07973. Epub 2021 Jan 11. PMID: 33426885.  IF: 15.881

          [2] [1] Rlabc D, et al. Inhibition of ROS activity by controlled release of proanthocyanidins from mesoporous silica nanocomposites effectively ameliorates heterotopic tendon ossification[J]. Chemical Engineering Journal, 2021.    IF: 13.273

          [3] Feng J, et al. AKAP1 contributes to impaired mtDNA replication and mitochondrial dysfunction in podocytes of diabetic kidney disease. Int J Biol Sci. 2022 Jun 13;18(10):4026-4042. doi: 10.7150/ijbs.73493. PMID: 35844803.  IF: 10.75

          [4] Chen L, et al. Therapeutic effect of SIRT3 on glucocorticoid-induced osteonecrosis of the femoral head via intracellular oxidative suppression. Free Radic Biol Med. 2021 Nov 20; 176:228-240. PMID: 34260898.   IF: 7.376

          [5] Qiao S, et al. Bergenin impedes the generation of extracellular matrix in glomerular mesangial cells and ameliorates diabetic nephropathy in mice by inhibiting oxidative stress via the mTOR/β-TrcP/Nrf2 pathway[J]. Free Radical Biology and Medicine, 2019, 145: 118-135.   IF: 7.376

          [6] Che Y, et al. The Combination of Rhodosin and MMF Prolongs Cardiac Allograft Survival by Inhibiting DC Maturation by Promoting Mitochondrial Fusion. Oxid Med Cell Longev. 2022 Jul 9; 2022:7260305. PMID: 35855862.  IF: 7.31

          [7] Hu J, et al. Inhibition of CACNA1H attenuates doxorubicin-induced acute cardiotoxicity by affecting endoplasmic reticulum stress[J]. Biomedicine & Pharmacotherapy, 2019, 120: 109475.   IF: 6.529

          [8] Lin Z, et al. Eicosapentaenoic Acid-Induced Autophagy Attenuates Intervertebral Disc Degeneration by Suppressing Endoplasmic Reticulum Stress, Extracellular Matrix Degradation, and Apoptosis. Front Cell Dev Biol. 2021 Nov 4; 9:745621. doi: 10.3389/fcell.2021.745621. PMID: 34805156; PMCID: PMC8599281.    IF: 6.684

          [9] Chen L, et al. Apelin-13 induces mitophagy in bone marrow mesenchymal stem cells to suppress intracellular oxidative stress and ameliorate osteoporosis by activation of AMPK signaling pathway. Free Radic Biol Med. 2021 Feb 1; 163:356-368. doi: 10.1016/j.freeradbiomed.2020.12.235. Epub 2020 Dec 30. PMID: 33385540.  IF: 6.17

          [10] Li D, et al. Cereulide Exposure Caused Cytopathogenic Damages of Liver and Kidney in Mice. Int J Mol Sci. 2021 Aug 24;22(17):9148. doi: 10.3390/ijms22179148. PMID: 34502057; PMCID: PMC8431326.  IF5.924

          [11] Pan B, et al. Azilsartan Suppresses Osteoclastogenesis and Ameliorates Ovariectomy-Induced Osteoporosis by Inhibiting Reactive Oxygen Species Production and Activating Nrf2 Signaling. Front Pharmacol. 2021 Nov 26;12:774709. doi: 10.3389/fphar.2021.774709. PMID: 34899338; PMCID: PMC8662525.   IF5.811

          [12] Wang K, et al. Icariin Prevents Extracellular Matrix Accumulation and Ameliorates Experimental Diabetic Kidney Disease by Inhibiting Oxidative Stress via GPER Mediated p62-Dependent Keap1 Degradation and Nrf2 Activation. Front Cell Dev Biol. 2020 Jul 17; 8:559. doi: 10.3389/fcell.2020.00559. PMID: 32766240; PMCID: PMC7379398.  IF5.186

          [13] Zhu L, et al. The critical role of RasGRP4 in the growth of diffuse large B cell lymphoma. Cell Commun Signal. 2019 Aug 13;17(1):92. doi: 10.1186/s12964-019-0415-6. PMID: 31409422; PMCID: PMC6693169.   IF5.128

          HB220909

           

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