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Microfluidics as a tool to assess and induce emulsion destabilization
Tatiana Porto Santos1, Cesare M Cejas2, Rosiane Lopes Cunha1
1Department of Food Engineering, Faculty of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80-CEP 13083-862 Campinas, Brazil. rosiane@unicamp.br.
Soft Matter
|January 17, 2022
Summary
Microfluidic devices offer precise control for rapid emulsion destabilization, aiding in stability assessment and applications in food and pharmaceuticals. These controlled environments also enable the use of emulsion droplets as micro-reactors for assays.
Area of Science:
- Fluid dynamics
- Materials science
- Chemical engineering
Background:
- Microfluidic technology allows precise control over small-scale processes.
- Emulsion stability is crucial for food and pharmaceutical applications.
- Understanding droplet behavior post-formation is key to assessing stability.
Purpose of the Study:
- To review microfluidic techniques for emulsion destabilization.
- To analyze droplet behavior in confined and dynamic flow conditions.
- To explore the use of microfluidic emulsions as micro-reactors.
Main Methods:
- Review of microfluidic techniques including channel geometry and wettability modification.
- Observation of droplet behavior in fixed positions (confined environments).
- Analysis of droplet behavior under shear forces (dynamic flow).
Main Results:
- Microfluidics accelerates emulsion droplet interface destabilization.
- Controlled environments allow assessment of droplet re-coalescence and stability over time.
- Microfluidic platforms can be utilized as micro-reactors for biological and chemical assays.
Conclusions:
- Microfluidic devices are effective tools for studying and controlling emulsion stability.
- Techniques vary based on whether droplets are destabilized in confined or dynamic flow.
- This review highlights strategies for emulsion destabilization and micro-reactor applications.
