In Situ Crosslinking Bionanocomposite Hydrogels with Potential for Wound Healing Applications

Area of Science:

• Biomaterials Science
• Nanotechnology
• Regenerative Medicine

Background:

• In situ forming hydrogels are crucial biomaterials for patient-specific treatments like cell therapy and drug delivery.
• Developing advanced hydrogels for wound healing, particularly for complex injuries, remains a significant challenge in regenerative medicine.

Purpose of the Study:

• To investigate the generation of in situ forming bionanocomposite hydrogels for potential wound healing applications.
• To evaluate the physicochemical properties, cytotoxicity, and zinc ion release of these novel hydrogels.

Main Methods:

• Synthesized bionanocomposite hydrogels by combining oxidized polysaccharides, amine-presenting chitosan, and nanostructured zinc oxide (ZnO).
• Assessed in situ gelation time, component cytotoxicity against HaCat cells, and in vitro zinc ion (Zn2+) release using synthetic skin models.

Main Results:

• The bionanocomposite hydrogels exhibited rapid in situ gel formation, completing within minutes.
• Components demonstrated non-toxicity towards HaCat cells at functional concentrations.
• Significant in vitro release of Zn2+ ions from the hydrogels was observed.

Conclusions:

• The developed in situ forming bionanocomposite hydrogels possess favorable properties for wound healing applications.
• The combination of modified polysaccharides, chitosan, and ZnO nanoparticles offers a promising platform for advanced wound care.
• The observed zinc ion release suggests a potential mechanism for facilitating wound healing processes.