期刊
PHARMACEUTICAL DEVELOPMENT AND TECHNOLOGY
卷 16, 期 5, 页码 511-519出版社
INFORMA HEALTHCARE
DOI: 10.3109/10837450.2010.495397
关键词
Oil-in-water emulsion; squalene; phosphatidylcholine
资金
- Bill & Melinda Gates Foundation [42387]
Development and characterization of stable and biocompatible oil-in-water emulsions is important for improved drug and vaccine delivery. In this work, two-component emulsions consisting of squalene and phosphatidylcholine have been developed. The reproducibility of the manufacturing process is established and production efficiency is improved by altering the order of component addition. The effects of emulsifier concentration and composition on emulsion stability and biocompatibility are assessed through dynamic light scattering, zeta potential measurement, viscosity, and hemolytic activity. High concentrations of egg phosphatidylcholine emulsifier decreased initial particle size and increased initial size polydispersity. However, high emulsifier concentrations also appeared to decrease long-term emulsion stability as well as absolute zeta potential values. Substitution of naturally derived egg phosphatidylcholine with synthetic 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) produced an emulsion with similar physicochemical properties and stability.
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