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Stabilization of All-in-Water Emulsions To Form Capsules as Artificial Cells
Jean-Paul Douliez1, Adeline Perro2, Laure Béven1
1UMR 1332, Biologie du Fruit et Pathologie, INRA, Centre de Bordeaux, Université de Bordeaux, Équipe Mollicute, 71, rue E. Bourlaux, 33883, Villenave d'Ornon, France.
Chembiochem : a European Journal of Chemical Biology
|May 16, 2019
Summary
Researchers are developing artificial cells using stabilized emulsion droplets. These compartments overcome limitations of liposomes, offering a promising avenue for origin of life studies and bioreactor development.
Area of Science:
- Synthetic biology and origin of life research.
- Biomimetic materials and nanotechnology.
Background:
- Artificial cells are crucial for understanding life's origins and developing novel biotechnologies.
- Existing compartments like liposomes have limitations in membrane permeability and biological material encapsulation.
- All-in-water emulsion droplets, such as coacervates, can sequester chemicals but lack membranes and are prone to coalescence.
Purpose of the Study:
- To review recent advances in stabilizing all-in-water emulsion droplets for artificial cell development.
- To discuss strategies for overcoming the limitations of current artificial cell compartments.
- To explore the potential of stabilized emulsion droplets in origin of life research and industrial applications.
Main Methods:
- Review of literature on stabilizing emulsion droplets using lipids, polymers, proteins, and particles.
- Analysis of strategies for preventing droplet coalescence and controlling inter-compartment exchange.
- Discussion of encapsulation techniques for biological materials within stabilized droplets.
Main Results:
- Stabilization of emulsion droplets using various materials prevents coalescence and macroscopic phase separation.
- Lipid membranes, polymers, proteins, and particles have been successfully employed to create stable compartments.
- These stabilized droplets offer improved control over the internal environment compared to simple coacervates.
Conclusions:
- Stabilized all-in-water emulsion droplets represent a promising platform for building functional artificial cells.
- These systems address key limitations of traditional liposomes and coacervates.
- Further development holds potential for advancing origin of life studies, bioreactor design, and industrial applications.
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