Poly(levodopa)-Functionalized Polysaccharide Hydrogel Enriched in Fe₃O₄ Particles for Multiple-Purpose Biomedical...

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Nanotechnology

Background:

• Curdlan, a natural polymer, shows promise for medical applications but requires modification for enhanced bioactivity.
• Functional additives like magnetic nanoparticles and polycatecholamines can improve the stability and functionality of curdlan-based materials.
• There is a need for advanced hydrogel systems with tunable properties for diverse medical applications.

Purpose of the Study:

• To produce and characterize novel functional hydrogels based on curdlan.
• To incorporate iron oxide nanoparticles (Fe3O4 NPs) or Fe3O4-based heterostructures and poly(L-DOPA) (PLD) into curdlan hydrogels.
• To evaluate the biomedical potential, including antibacterial activity, hemocompatibility, and thermal properties, of the modified hydrogels.

Main Methods:

• Synthesis of curdlan hydrogels functionalized with Fe3O4 NPs or Fe3O4 heterostructures.
• Incorporation of poly(L-DOPA) (PLD) into the hydrogel network.
• Characterization of hydrogel properties, including cytotoxicity, hemocompatibility, antibacterial efficacy, and energy conversion capabilities.

Main Results:

• The modified curdlan hydrogels demonstrated non-toxicity and relative hemocompatibility.
• High antibacterial potential was observed in the functionalized hydrogels.
• The hydrogels exhibited energy conversion capabilities with heat generation.
• Poly(L-DOPA) incorporation reduced NP release but slightly increased hemolytic properties.

Conclusions:

• The developed functional curdlan hydrogels possess significant potential for various medical applications.
• These materials are suitable for temperature-controlled regenerative processes and oncology therapies due to their enhanced functionality.
• Careful consideration of poly(L-DOPA)'s effect on hemocompatibility is necessary for specific application selection.