计算溶液所需的质量、体积或浓度。
BioReagent,无菌过滤 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
-20°C储存。超低温运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
本品为高纯度、无菌过滤的脂多糖(LPS)浓缩储存溶液,来源于大肠杆菌血清型 O55:B5。浓度为1 mg/mL,稀释500倍后即可获得2 µg/mL的常用工作液,极大地方便了细胞刺激实验的剂量控制与操作。本品经严格的内毒素活性验证,批次间稳定性高,适用于免疫学、炎症研究和细胞信号转导等领域,用于刺激巨噬细胞、单核细胞等免疫细胞,诱导其分泌炎症因子。
主要成分
活性成分:脂多糖 (LPS),来源:大肠杆菌 O55:B5
溶剂:无菌、无热原的细胞培养级水
浓度:1.0 mg/mL(500×储存液)
产品特性
高纯度与高活性: 经过纯化处理,具有高度的生物活性,能有效激活TLR4信号通路。
即用型储存液: 预先配制成1.0 mg/mL的500× 浓缩液,省去称量、溶解等繁琐步骤,减少污染风险。
使用便捷: 直接按比例稀释至所需工作浓度(如1× = 2.0 µg/mL),方便进行剂量梯度实验。
无菌过滤: 溶液经过0.22 µm滤膜无菌过滤,可直接用于细胞培养实验。
使用说明
注意事项
安全第一: 本品为生物活性物质,操作时必须严格遵守生物安全规范。避免产生气溶胶。
避免污染: 在无菌条件下操作,使用无菌的试剂和耗材进行稀释。
避免反复冻融: 反复冻融可能导致LPS活性下降或沉淀析出。分装保存是推荐做法。
实验优化: 不同细胞系或原代细胞对LPS的敏感性差异很大。首次使用时,建议设置一个浓度梯度(例如,0.1, 1, 10, 100, 1000 ng/mL)以确定最佳刺激浓度。
适用范围: 本品仅供科研使用,不适用于临床诊断或治疗。
This product is a sterile-filtered, concentrated stock solution of highly purified Lipopolysaccharide (LPS) derived from E. coli serotype 055:B5. At a concentration of 1 mg/mL, it is formulated as a 500X stock. A simple 500-fold dilution yields a standard working solution of 2 µg/mL, greatly facilitating dose control and operation in cell stimulation experiments. The product undergoes rigorous validation for endotoxin activity and exhibits high batch-to-batch consistency. It is suitable for research in immunology, inflammation, and cell signaling, specifically for stimulating immune cells such as macrophages and monocytes to induce cytokine secretion.
Key Components
Active Ingredient: Lipopolysaccharide (LPS), Source: E. coli 055:B5
Solvent: Sterile, Pyrogen-free Cell Culture Grade Water
Concentration: 1 mg/mL (500X Stock Solution)
Features
High Purity & Activity: Purified to possess high biological activity, effectively activating the TLR4 signaling pathway.
Ready-to-Use Stock: Pre-formulated as a 500X concentrated solution at 1 mg/mL, eliminating the need for weighing and dissolving, thereby reducing contamination risks.
Convenient: Easily diluted to the desired working concentration (e.g., 1X = 2 µg/mL), ideal for dose-response studies.
Sterile-Filtered: Solution is sterile-filtered through a 0.22 µm membrane, ready for direct addition to cell cultures.
Procedure
Precautions
Safety First: This is a biologically active material. Always follow strict biosafety protocols during handling. Avoid creating aerosols.
Avoid Contamination: Perform dilutions under sterile conditions using sterile reagents and consumables.
Avoid Freeze-Thaw Cycles: Repeated freezing and thawing may lead to loss of activity or precipitation. Aliquotting is strongly recommended.
Experiment Optimization: Sensitivity to LPS varies significantly among different cell lines or primary cells. For initial use, a concentration gradient (e.g., 0.1, 1, 10, 100, 1000 ng/mL) is recommended to determine the optimal stimulation dose.
Intended Use: For research use only. Not for use in diagnostic or therapeutic procedures.
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 | |
| 分析证书 | L1508370 |