In situ crosslinkable hydrogel formed from a polysaccharide-based hydrogelator

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Drug Delivery Systems

Background:

• Amylopectin is a polysaccharide with potential for developing novel biomaterials.
• Developing in situ crosslinkable hydrogels is crucial for advanced biomedical applications.
• Understanding hydrogel viscoelasticity and structure is key to optimizing their performance.

Purpose of the Study:

• To investigate the formation, viscoelasticity, and structure of an in situ crosslinkable amylopectin-based hydrogel.
• To evaluate the hydrogel's capacity for protein encapsulation and sustained release.
• To compare the properties of this novel hydrogel with traditional physical amylopectin hydrogels.

Main Methods:

• Formation of amphiphilic amylopectin-based hydrogelator in aqueous solution.
• Rheological measurements to assess viscoelasticity, mechanical strength, and shear thinning behavior.
• Circular dichroism analyses and in vitro release experiments for protein encapsulation studies.

Main Results:

• Rapid hydrogel formation at room temperature with enhanced viscoelastic properties and mechanical strength.
• Observation of shear thinning behavior and a complex network structure with higher fractal dimension.
• Demonstrated potential for entrapment and sustained release of bovine serum albumin (BSA).

Conclusions:

• The developed amylopectin-based hydrogel offers rapid formation and superior properties compared to physical hydrogels.
• The hydrogel's unique structure facilitates effective protein encapsulation.
• This novel hydrogel material presents significant potential for sustained protein delivery applications.