A New Means to Generate Liposomes by Rehydrating Engineered Lipid Nanoconstructs

Area of Science:

• Biomaterials Science
• Nanotechnology
• Lipid Nanotechnology

Background:

• Liposomes are versatile lipid-based vesicles with applications in drug delivery, sensing, and biomaterials.
• Current methods for liposome production can be limited in controlling size, distribution, and complex structures.

Purpose of the Study:

• To demonstrate the concept and feasibility of producing liposomes via rehydration of engineered lipid nanoconstructs.
• To explore the tunability of liposome size and the creation of hierarchical liposomal structures.

Main Methods:

• Engineered nanoconstructs of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) were fabricated using microfluidics and atomic force microscopy.
• Liposomes were formed by rehydrating the POPC nanoconstructs, with controlled deposition for hierarchical structures.

Main Results:

• Rehydration of POPC nanoconstructs successfully produced liposomes, predominantly surface-adhered.
• Liposome size was tunable by altering the lateral dimensions of the lipid constructs.
• Hierarchical structures, like pentagons of liposomes, were successfully designed and produced.

Conclusions:

• This novel approach enables precise regulation of liposome size, distribution, and composition.
• The ability to create tunable and hierarchical liposomal structures opens new avenues for biomaterials design, delivery systems, and proto-cell engineering.