Sulfadiazine modified CS/HA PEC destined to wound dressing

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Drug Delivery

Background:

• Chitosan is a biocompatible polymer with inherent antimicrobial properties.
• Sulfadiazine is an antibiotic with bacteriostatic effects.
• Hyaluronic acid is a polysaccharide known for its wound healing and moisturizing properties.

Purpose of the Study:

• To develop and characterize a novel polyelectrolyte complex (PEC) hydrogel using a sulfadiazine-modified chitosan derivative and hyaluronic acid.
• To evaluate the antimicrobial activity and release characteristics of the developed PEC hydrogel.
• To investigate the influence of chitosan molecular weight on PEC properties and swelling behavior.

Main Methods:

• Preparation of polyelectrolyte complexes (PECs) from chitosan derivatives and sodium hyaluronate.
• Assessment of complex structure using Fourier-transform infrared (FT-IR) spectroscopy.
• Measurement of swelling capacity through gravimetric analysis.

Main Results:

• The incorporation of the sulfadiazine chitosan derivative significantly influenced the properties of the PEC hydrogel.
• The swelling capacity of the hydrogel was modulated by the chitosan derivative.
• The developed PEC hydrogel demonstrated enhanced antimicrobial and release properties.

Conclusions:

• The sulfadiazine chitosan derivative effectively combined the bacteriostatic effects of chitosan and sulfadiazine within the PEC hydrogel.
• This novel approach allows for controlled properties and enhanced antimicrobial activity for wound treatment applications.
• The developed PEC hydrogel represents a promising new material for advanced wound care.