Alginate and alginate composites for biomedical applications.

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Regenerative Medicine

Background:

• Alginate, a heteropolysaccharide from brown seaweed, is widely used in various industries due to its gel-forming properties.
• Its application in biomedicine, particularly for wound healing and tissue regeneration, is increasing, with alginate-based dressings readily available.
• Native alginate's limitations in physiological environments, such as structural softening, hinder its use in load-bearing applications and soft tissue regeneration.

Purpose of the Study:

• To review the preparation of alginate and its composites for biomedical applications.
• To discuss the latest trends in utilizing alginate composites for wound dressing, drug delivery, and tissue engineering.
• To highlight the advantages of alginate composites over native alginate in biomedical contexts.

Main Methods:

• Review of scientific literature on alginate and alginate composite preparation and applications.
• Analysis of studies incorporating various materials (peptides, natural/synthetic polymers) into alginate structures.
• Examination of alginate composite forms including fibers, beads, hydrogels, and 3D-printed matrices.

Main Results:

• Alginate composites exhibit enhanced mechanical properties compared to native alginate.
• Incorporation of other materials improves healing capabilities and promotes better tissue regeneration.
• Alginate composites serve as effective encapsulating agents, improving drug release kinetics and cell viability.

Conclusions:

• Alginate composites offer superior mechanical stability and enhanced biological functions for biomedical applications.
• These advanced materials hold significant potential for improving wound dressings, drug delivery systems, and tissue engineering scaffolds.
• Further research into alginate composite formulations can unlock new therapeutic possibilities in regenerative medicine.