Extension Foundation Online Campus
Polymer Selection
Polyplex Development
Polyplexes are formed based on the fundamental electrostatic interaction between the positively charged polycation and the negatively charged mRNA backbone. Our service optimizes:
Polymer Architecture: Controlling molecular weight, charge density, and hydrophilicity of cationic polymers (e.g., modified PEI, chitosan) to ensure optimal condensation and stability.
Targeting Functionality: Integrating functional groups for ligand attachment, which can enhance cell-specific recognition and uptake.
Micelleplex Development
Micelleplexes are sophisticated, self-assembled structures generated from block copolymers. These structures offer key advantages in complex biological environments:
Thermodynamic Stability: Enhanced structural integrity for systemic circulation, improving bioavailability.
Endoplasmic Body Escape: Incorporating components optimized for the "Proton Sponge Effect" to ensure successful release into the cytoplasm, a critical step often limiting transfection efficiency.