Design and Application of Bile Acid-Based Self-Emulsifying Systems

Area of Science:

• Biomaterials Science
• Sustainable Chemistry
• Drug Delivery Systems

Background:

• Growing demand for sustainable and efficient self-emulsifying systems.
• Need for novel, naturally derived emulsifying agents.
• Limitations of existing synthetic emulsifiers.

Purpose of the Study:

• To develop a novel, naturally derived self-emulsifying agent.
• To utilize functional group deprotection for creating tunable emulsifiers.
• To explore applications in drug delivery and functional materials.

Main Methods:

• Chemical modification of cholic acid by masking hydroxyl and carboxyl groups with ethyl vinyl ether to create a lipophilic intermediate (LCA).
• Hydrolytic deprotection of LCA in aqueous or biological environments to regenerate amphiphilic cholic derivatives.
• Evaluation of self-emulsifying performance, functional properties, and oil solubility of LCA.

Main Results:

• Successful synthesis of a lipophilic cholic acid (LCA) intermediate with controlled stability.
• Regeneration of amphiphilic cholic derivatives from LCA exhibiting excellent self-emulsifying properties.
• Demonstrated high oil solubility of LCA for solubilizing poorly water-soluble drugs and quantum dots.

Conclusions:

• A versatile and energy-efficient platform for designing natural self-emulsifying agents was established.
• The developed agent offers tunable functional properties for diverse applications.
• This approach holds significant potential for advancing drug delivery and creating novel functional materials.