微乳液
术语
混乱
胶体
生物利用度
生化工程
纳米技术
肺表面活性物质
化学工程
化学
材料科学
哲学
工程类
有机化学
心理学
语言学
生物信息学
精神分析
生物
作者
David Julian McClements
出处
期刊:Soft Matter
[The Royal Society of Chemistry]
日期:2012-01-01
卷期号:8 (6): 1719-1729
被引量:1223
摘要
Colloidal delivery systems based on microemulsions or nanoemulsions are increasingly being utilized in the food and pharmaceutical industries to encapsulate, protect, and deliver lipophilic bioactive components. The small size of the particles in these kinds of delivery systems (r < 100 nm) means that they have a number of potential benefits for certain applications: enhanced long-term stability; high optical clarity; and, increased bioavailability. Currently, there is considerable confusion about the use of the terms “microemulsions” and “nanoemulsions” in the scientific literature. However, these are distinctly different types of colloidal dispersions: a microemulsion is thermodynamically stable, whereas a nanoemulsion is not. It is therefore important to distinguish between them since this impacts the methods used to fabricate them, the strategies used to stabilize them, and the approaches used to design their functional attributes. This article reviews the differences and similarities between nanoemulsions and microemulsions in terms of their compositions, structure, fabrication, properties, and stability. It also attempts to highlight why there has been so much confusion in this area, and to clarify the terminology used to refer to these two kinds of colloidal dispersion.
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