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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Biotechnology

Background:

  • Polysaccharides are versatile building blocks for macromolecular design.
  • Saccharide block selection influences physico-chemical and biological properties of polymers and nanostructures.
  • Amphiphilic diblock copolymers combine hydrophobic and polysaccharide segments.

Purpose of the Study:

  • To synthesize amphiphilic diblock copolymers with poly(γ-benzyl-L-glutamate) (PBLG) and polysaccharides (hyaluronic acid - HA, laminarin - LAM).
  • To investigate the self-assembly of these copolymers into nanoparticles via nanoprecipitation.
  • To explore the formation of hybrid nanoparticles and their protein interactions for biomedical applications.

Main Methods:

  • Synthesis of amphiphilic diblock copolymers.
  • Nanoprecipitation and co-nanoprecipitation techniques for particle formation.
  • Surface Plasmon Resonance (SPR) for evaluating particle-protein interactions.

Main Results:

  • Amphiphilic copolymers self-assembled into particles in water.
  • Hybrid particles with varying HA and LAM ratios were successfully created.
  • Five distinct particle samples with controlled morphologies and compositions were developed.
  • Particle-protein interactions with CD44 (for HA) and Dectin-1 (for LAM) were modulated by particle structure and composition.

Conclusions:

  • Nanoprecipitation is a versatile method for creating particles with tunable protein interactions.
  • The developed particles possess controllable biological properties suitable for drug delivery.
  • This approach offers a practical route to advanced biomedical materials.