Related Experiment Video
Updated: Jul 7, 2026
Double Emulsion Generation Using a Polydimethylsiloxane PDMS Co-axial Flow Focus Device
Published on: December 25, 2015
One-Step Generation of O/W/O Double Pickering Emulsions Utilizing Biocompatible Gliadin/Ethyl Cellulose Complex
Fu-Zhen Zhou1,2, Li-Hua Xie3, Xin-Hao Yu1
1Research and Development Center of Food Proteins, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Department of Food Science and Technology, South China University of Technology, Guangzhou 510641, P. R. China.
Stable oil-in-water-in-oil (O/W/O) double emulsions were created using gliadin/ethyl cellulose particles. These Pickering emulsions effectively encapsulate enzymes for biocatalysis and serve as templates for porous microspheres.
Area of Science:
- Colloid and Surface Science
- Materials Science
- Biotechnology
Background:
- Double emulsions offer compartmentalization but struggle with physical stability.
- Developing stable double emulsions is crucial for advanced applications.
- Pickering emulsions, stabilized by particles, present a promising route for stability.
Purpose of the Study:
- To develop a simple, one-step method for producing stable oil-in-water-in-oil (O/W/O) double emulsions.
- To utilize biocompatible gliadin/ethyl cellulose complex particles as stabilizers.
- To explore the application of these stable O/W/O emulsions in enzyme encapsulation and as templates for porous microsphere synthesis.
Main Methods:
- A one-step method was employed to create O/W/O double emulsions stabilized by gliadin/ethyl cellulose complex particles.
- The influence of particle concentration and water fraction on emulsion properties was investigated.
- Enzyme encapsulation (lipase) and subsequent catalytic activity, as well as microsphere templating, were evaluated.
Main Results:
- Stable O/W/O double emulsions were successfully produced using gliadin/ethyl cellulose particles.
- Emulsion stability and droplet characteristics (number, volume) were influenced by particle concentration and water fraction over 60 days.
- Encapsulated lipase demonstrated accelerated catalytic rates (80.9% conversion in 15 min) and excellent recyclability (10 cycles).
- Porous microspheres with controllable size were synthesized using the O/W/O emulsions as templates.
Conclusions:
- Gliadin/ethyl cellulose complex particles provide effective stabilization for O/W/O Pickering emulsions.
- These stable double emulsions are versatile platforms for enzyme immobilization and biocatalysis.
- The templating capability allows for the synthesis of tunable porous microspheres, expanding material science applications.
- This approach offers significant potential for pharmaceuticals, food, cosmetics, and catalysis.
More Related Videos
12:07Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
Published on: April 16, 2018
10:06Cellular Affinity of Particle-Stabilized Emulsion to Boost Antigen Internalization
Published on: September 2, 2022
