Biomimetic Hybrid Nanocontainers with Selective Permeability

Area of Science:

• Synthetic chemistry
• Nanotechnology
• Biomaterials science

Background:

• Biomacromolecular structures are essential in nature, but synthetic analogues face challenges like membrane instability.
• Biomimetic vesicles offer potential but often lack precise control over cargo transport.
• Existing synthetic vesicles may not fully replicate the functions of natural cellular compartments.

Purpose of the Study:

• To develop completely synthetic vesicles with stable polymeric walls and engineered DNA nanopores.
• To create hybrid nanocontainers with selective permeability for controlled molecular transport.
• To enable encapsulation of active enzymes within synthetic vesicles for nanoreactor applications.

Main Methods:

• Synthesis of stable polymeric vesicles.
• Integration of DNA nanopores into vesicle membranes.
• Characterization of vesicle permeability and cargo encapsulation.
• Assessment of encapsulated enzyme activity.

Main Results:

• Developed hybrid nanocontainers with stable polymeric walls and DNA nanopores.
• Achieved selective permeability, allowing transport of 1.5 nm organic molecules.
• Successfully encapsulated larger enzymes (approx. 5 nm) while maintaining catalytic activity.
• Demonstrated the potential of these structures as enzymatic nanoreactors.

Conclusions:

• The developed hybrid nanocontainers represent a novel class of enzymatic nanoreactors.
• High tunability of polymeric vesicles and DNA pores allows for tailored applications.
• Potential applications include drug delivery, bioimaging, biocatalysis, and cell mimicry.