DiI 产品活性：DiI 是一种长链碳菁染料。碳菁染料广泛用作亲脂性示踪剂，用于标记细胞、细胞器、脂质体、病毒和脂蛋白。 产品来源： https://www.medchemexpress.cn/DiI.html 研究领域：Others 作用靶点：Fluorescent Dye In Vitro: Carbocyanine dyes are widely used as Di to label cells, organelles, liposomes, viruses and lipoproteins. Long-chain carbocyanines which include DiO (DiOC18(3)), DiI (DiIC18(3)), DiD (DiIC18(5)) and DiR, and dialkyl aminostyryl dye DiA (4-Di-16-ASP) are used for labeling membranes and other hydrophobic structures. DiIC16(3) has shorter alkyl substituents (C16) than DiI (C18). They have extremely high extinction coefficients, environmental dependent fluorescence and short excited-state lifetimes in lipid environments. They are oils at room temperature and weakly fluorescent in water but highly fluorescent and quite photostable when incorporated into membranes or bound to lipophilic biomolecules. These optical characteristics make them ideal for staining the cytoplasmic membranes of cells. Once applied to cells, these dyes diffuse laterally within the plasma membrane, resulting in staining of the entire cell. DiO, DiI, DiD and DiR exhibit distinct green, orange, red and infrared fluorescence, respectively? thus facilitating multicolor imaging and flow cytometric analysis of live cells . DiO and DiI can be used with standard FITC and TRITC filters respectively. Among them DiI and its analogs are most frequently used since they usually exhibit very low cell toxicity. In addition, DiI is widely used for determining lipoproteins such as LDL and HDL. The lipophilic aminostyryl dye DiA is also often used for neuronal tracing. General Protocol 1. Preparing Stain Solutions of Di a. Prepare DMF, DMSO or ethanol stock solutions: The stock solutions should be prepared in dimethyl formamide (DMF), dimethylsulfoxide (DMSO, or ethanol DMSO at 1-5 mM. DMF is preferable to ethanol as a solvent for Di. The stock solution should be used promptly. Any unused solution need to be aliquoted and refrozen at least -20℃. Avoid repeated freeze/thaw cycle. The solution can be stored for 6 months. b. Prepare working solutions: Dilute the stock solutions into a suitable buffer such as serum-free culture medium, HBSS or PBS to make 1 to 5 μM working solutions. We do not recommend storing the aqueous solution for more than one day. Note: The final concentration of the working solution should be empirically determined for different cell types and/or experimental conditions. 2. Suspension cells a. Centrifuge at 1000 g at 4℃ for 3-5 minutes and then discard the supernatant. Wash twice with PBS, 5 minutes each time.The cell density is 1×106/mL. b. Add 1 mL of Di working solution, and then incubate at room temperature for 5-30 minutes. c. Centrifuge at 400 g at 4℃ for 3-4 minutes and then discard the supernatant. d. Wash twice with PBS, 5 minutes each time. e. Resuspend cells with serum-free cell culture medium or PBS.Observation by fluorescence microscopy or flow cytometry. 3. Adherent cells a. Culture adherent cells on sterile coverslips. b. Remove the coverslip from the medium and aspirate excess medium. c. Add 100 μL of working solution, gently shake it to completely cover the cells, and then incubate at room temperature for 5-30 minutes. d. Wash twice with medium, 5 minutes each time. Observation by fluorescence microscopy or flow cytometry. In Vivo: DiI-labeled motoneurons have remained viable for up to 4 weeks in culture and up to one year in vivo 相关产品：MitoSOX Red | BODIPY 493/503 | D-Luciferin potassium | Nile Red | FITC | JC-1 | Propidium Iodide | DiR | FITC-Dextran (MW 4000) | Dihydroethidium | CFDA-SE | 2-NBDG | Calcein-AM | Thiazolyl Blue | Cy5.5 | TMRE | Fluo-4 AM | CY5 | Indocyanine green | PKH 26 | DiD perchlorate | Acridine Orange hydrochloride | BODIPY 581/591 C11 | FM4-64 | DiO | CY5-SE | TMRM Perchlorate 品牌介绍: MCE (MedChemExpress) 拥有数百种全球独家化合物，我们致力于为全球科研客户提供最新最全的高品质小分子活性化合物；10,000 多种高选择性抑制剂、激动剂涉及各热门信号通路及疾病领域；设有专业的实验中心和严格的质控、验证体系；提供 LC/MS、NMR、HPLC、手性分析、元素分析等各项质检报告，确保产品的高纯度、高品质；产品的生物活性多经各国客户实验验证；Nature, Cell, Science 等多种顶级期刊及制药专利收录了MCE客户的科研成果；专业团队跟踪最新的制药及生命科学研究进展，为您提供全球最新的活性化合物；与世界各大制药公司及知名科研机构建立了长期的合作。