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Polysorbate 80 is a surfactant and solubilizer used in a variety of oral and topical pharmaceutical products. Polysorbate 80 is also an excipient that is used to stabilize aqueous formulations of medications for parenteral administration, and used as an emulsifier in the making of the antiarrhythmic amiodarone . [ 9 ]
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Polysorbate 20, a compound used as a food additive in some pudding mixes to prevent scorching during preparation. Polysorbates are a class of emulsifiers used in some pharmaceuticals and food preparation. They are commonly used in oral and topical pharmaceutical dosage forms.
An image schema (both schemas and schemata are used as plural forms) is a recurring structure within our cognitive processes which establishes patterns of understanding and reasoning. As an understudy to embodied cognition , image schemas are formed from our bodily interactions, [ 1 ] from linguistic experience, and from historical context.
Coating these polymeric nanoparticle devices with different surfactants can also aid BBB crossing and uptake in the brain. Surfactants such as polysorbate 80, 20, 40, 60, and poloxamer 188, demonstrated positive drug delivery through the blood–brain barrier, whereas other surfactants did not yield the same results. [2]
Examples synthesized on an industrial scale include octyl phenol ethoxylate, polysorbate 80 and poloxamers. Ethoxylation is commonly practiced, albeit on a much smaller scale, in the biotechnology and pharmaceutical industries to increase water solubility and, in the case of pharmaceuticals, circulatory half-life of non-polar organic compounds.
Docetaxel is a white powder and is the active ingredient available in 20 mg and 80 mg Taxotere single-dose vials of concentrated anhydrous docetaxel in polysorbate 80. [ 16 ] [ 17 ] The solution is a clear brown-yellow containing 40 mg docetaxel and 1040 mg polysorbate 80 per mL.
The chemical structure shown for Polysorbate 80 appears to be incorrect. Polysorbate 80 is made by polymerization of 20 equivalents of ethylene oxide with sorbitan monooleate [1]. The method of synthesis is summarized in Chapter 2 of Food Emulsifiers and Their Applications: Hasenhuettl, Gerard L., Hartel, Richard W. (Eds.) [2]. Aside from the ...