Polyethylene Glycol/Pullulan-Based Carrier for Silymarin Delivery and Its Potential in Biomedical Applications

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Materials Engineering

Background:

• Regenerative medicine aims to restore tissue and organ function.
• Hydrogel biomaterials are crucial for drug delivery systems.
• Innovative materials are needed for biocompatible drug carriers.

Purpose of the Study:

• To prepare and characterize a novel natural polymeric biomaterial.
• To evaluate its biocompatibility and drug release properties.
• To assess its potential in regenerative medicine applications.

Main Methods:

• Preparation of pullulan-silymarin matrices crosslinked with UV light.
• Purity assessment using Fourier-transform infrared (FT-IR) spectroscopy.
• Incubation tests in simulated body fluid (SBF), Ringer's solution, and artificial saliva for 19 days.
• Analysis of pH, conductivity, weight changes, and sorption capacity.
• Surface morphology analysis via optical microscopy.
• Silymarin release and antioxidant capacity determination using the Folin-Ciocâlteu test.

Main Results:

• The pullulan-silymarin matrices were successfully prepared and characterized.
• Incubation in SBF showed stable pH (7.6-7.8).
• High sorption capacity was observed in Ringer's solution, artificial saliva (~350%), and SBF (~300%).
• The material exhibited continuous release of silymarin with determined antioxidant capacity.
• Incubation analysis confirmed the material is active and harmless.

Conclusions:

• The developed pullulan-silymarin biomaterial shows promising potential for regenerative medicine.
• Its biocompatibility and sustained active ingredient release enhance its biological value.
• Further research is needed for a comprehensive assessment, but initial results are encouraging.