Hybrid hydrogels based on keratin and alginate for tissue engineering

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Polymer Chemistry

Background:

• Keratin possesses self-assembly properties and mimics the extracellular matrix.
• Alginate offers excellent chemical stability, mechanical strength, and biocompatibility.
• Combining these materials can yield advanced biomaterials for biological applications.

Purpose of the Study:

• To synthesize novel hybrid hydrogels using alginate and keratin.
• To investigate the fabrication of 2D and 3D hybrid hydrogels.
• To evaluate the physical properties and cell interactions of the developed hydrogels.

Main Methods:

• Hybrid hydrogels were prepared using sonication for 2D structures and pressure-driven extrusion for 3D structures.
• The composition of the hydrogels was varied to tune their physical properties.
• Human umbilical vein endothelial cells were used to assess cell-material interactions.

Main Results:

• The composition significantly influenced the physical properties of the alginate/keratin hydrogels.
• The hybrid hydrogels demonstrated tunable characteristics suitable for biological applications.
• Alginate/keratin biomaterials effectively supported endothelial cell attachment, spreading, and proliferation.

Conclusions:

• Novel alginate/keratin hybrid hydrogels were successfully produced.
• These hydrogels exhibit promising properties for use as scaffolds in soft tissue regeneration.
• The developed materials represent a significant advancement in biomaterial design for regenerative medicine.