Extraction, Modification and Biomedical Application of Agarose Hydrogels: A Review

Area of Science:

• Biomaterials Science
• Marine Biotechnology
• Polymer Chemistry

Background:

• Agarose, a marine red algae polysaccharide, is crucial in biomedical applications due to its gelling properties and biological activity.
• Natural agarose hydrogels have limitations in complex biological settings due to their singular structure.
• Modifications are essential to tailor agarose for optimal performance in various biomedical environments.

Purpose of the Study:

• To review the preparation, modification, and biomedical applications of agarose.
• To highlight agarose's potential in isolation, purification, drug delivery, tissue engineering, and 3D printing.
• To discuss future opportunities and challenges for agarose-based biomaterials.

Main Methods:

• Literature review and classification of agarose preparation and modification techniques.
• Analysis of current and emerging biomedical applications of agarose hydrogels.
• Discussion of challenges and future directions for agarose biomaterials.

Main Results:

• Agarose hydrogels can be modified physically, biologically, and chemically to enhance their properties.
• Key applications include isolation, purification, wound dressings, drug delivery, tissue engineering, and 3D printing.
• Despite progress, most agarose biomaterials are not yet clinically approved.

Conclusions:

• Modified agarose hydrogels offer versatile solutions for various biomedical challenges.
• Further research and development are needed to overcome limitations and achieve clinical translation.
• Rational selection of functionalized agarose hydrogels is key for successful biomedical applications.