A nanoemulsion is a type of emulsion where the dispersed phase (the particles that are dispersed throughout the mixture) consists of nanometer-sized droplets. Emulsions are typically mixtures of two immiscible liquids, such as oil and water, stabilized by an emulsifying agent.

Nanoemulsions are created using various techniques, such as high-pressure homogenization, sonication, or microfluidization. These techniques break down the dispersed phase into very small droplets, usually ranging from 20 to 200 nanometers in diameter.

Nanoemulsions have several advantages over conventional emulsions, including:

  1. Enhanced stability: Nano-sized droplets are less prone to coalescence and sedimentation, leading to improved stability over time.
  2. Increased surface area: The small droplet size provides a large surface area for interactions with other substances, such as drugs or nutrients, leading to improved bioavailability.
  3. Transparency: Nanoemulsions can be transparent or translucent, making them suitable for clear formulations in various applications, including food, cosmetics, and pharmaceuticals.
  4. Improved delivery systems: Nanoemulsions can be used as delivery systems for drugs, vitamins, or other bioactive compounds due to their enhanced stability and bioavailability.

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