Poloxamer 407 is a nonionic surfactant that is 100% active and relatively non-toxic to cells at low concentrations, and frequently used with dye AM esters such as Indo-1 AM, Fura-2 AM, Calcein AM, Fluo-3 AM, Fluo-4 AM, Quest Fluo-8? AM and Quest Rhod-4? AM, etc. to improve their water solubility. Poloxamer 407 is also a lipoprotein lipase inhibitor.
性状
Solid
体外研究(In Vitro)
Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs). 1. Dissolve 1 g of Poloxamer 407 in 10 mL distilled water to make a 10% (w/v) stock solution, or 2 g of Poloxamer 407 in 10 mL DMSO to make a 20% (w/v) stock solution. These may require heating from 40 to 50°C for about 30 minutes. Store solution at room temperature. Do not refrigerate or freeze the Poloxamer 407 solution since it may precipitate. If precipitation is observed, the precipitates can be dissolved by heating to 37°C and vortexing before use. 2. Dilute the 10% or 20% Poloxamer 407 stock solution into the cell-loading buffer such as Hanks and 20 mM Hepes buffer (HHBS) at 1:1000 to 1:500 dilution to achieve a 0.02 to 0.04% working solution.
体内研究(In Vivo)
Poloxamer 407 (0.25 g/kg; i.p.; every other day for 7 weeks) induces hypertriglyceridemia but decreases atherosclerosis in Ldlr mice. has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Model: L
运输条件
Room temperature in continental US; may vary elsewhere.
储存方式
Powder -20°C 3 years;4°C 2 years
参考文献
[1]. Antunes FE, et al. Gels of Pluronic F127 and nonionic surfactants from rheological characterization to controlled drug permeation. Colloids Surf B Biointerfaces. 2011 Oct 1;87(1):42-8.[2]. Peng X, et al. Poloxamer 407 Induces Hypertriglyceridemia but Decreases Atherosclerosis in Ldlr-/- Mice. Cells. 2022 May 30;11(11):1795.
溶解度数据
In Vitro: H2O : 110 mg/mL (Need ultrasonic)In Vivo: