Precision emulsification for droplet and capsule production

Qingchun Yuan*, Richard A. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Emulsions and microcapsules are typical structures in various dispersion formulations for pharmaceutical, food, personal and house care applications. Precise control over size and size distribution of emulsion droplets and microcapsules are important for effective use and delivery of active components and better product quality. Many emulsification technologies have been developed to meet different formulation and processing requirements. Among them, membrane and microfluidic emulsification as emerging technologies have the feature of being able to precisely manufacture droplets in a drop-by-drop manner to give subscribed sizes and size distributions with lower energy consumption. This paper reviews fundamental sciences and engineering aspects of emulsification, membrane and microfluidic emulsification technologies and their use for precision manufacture of emulsions for intensified processing. Generic application examples are given for single and double emulsions and microcapsules with different structure features.

Original languageEnglish
Pages (from-to)122-135
Number of pages14
JournalAdvanced Powder Technology
Issue number1
Early online date28 Oct 2013
Publication statusPublished - Jan 2014

Bibliographical note

Invited review paper


  • drop by drop manufacture
  • emulsions
  • membrane emulsification
  • microcapsules
  • microfluidic emulsification


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