Montmorillonite stabilized chitosan-co-mucin hydrogel for tissue engineering applications

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Polymer Chemistry

Background:

• Polymers are essential for creating tissue-engineered matrices that promote regeneration.
• Developing functional matrices using proteins like mucin is a key area in regenerative medicine.
• Mucin hydrogels often suffer from mechanical weakness, limiting their application.

Purpose of the Study:

• To develop a functional hybrid scaffold using chitosan and mucin for tissue engineering.
• To enhance the mechanical properties of mucin-based hydrogels.
• To evaluate the biocompatibility and material properties of the novel scaffold.

Main Methods:

• Characterization of mucin using MALDI-TOF TOF and CD spectroscopy.
• Chemical conjugation of chitosan (polysaccharide) with mucin (protein).
• Encapsulation of montmorillonite and grafting of hydroxyethyl methacrylate (HEMA) for mechanical enhancement.
• Spectroscopic characterization of conjugations and evaluation of water uptake and porosity.

Main Results:

• A stable hybrid scaffold of chitosan, mucin, and montmorillonite was successfully developed.
• Hydroxyethyl methacrylate grafting improved the mechanical weakness of mucin hydrogels.
• The prepared hydrogels exhibited favorable water uptake and porosity.
• Spectroscopic analysis confirmed successful conjugations with varied polysaccharide-protein ratios.

Conclusions:

• The developed chitosan-mucin-montmorillonite hydrogel scaffold shows enhanced mechanical stability and material properties.
• The scaffold is biocompatible, as indicated by evaluations with MC3T3E1 and C2C12 cell lines.
• This novel biomaterial holds significant potential for diverse tissue engineering and regenerative medicine applications.