Xanthan-Based Materials as a Platform for Heparin Delivery.

Area of Science:

• Biomaterials Science
• Polymer Chemistry
• Pharmacology

Background:

• Heparin (Hep) is a crucial biomolecule with anticoagulant, antiangiogenic, and apoptotic properties.
• Effective drug delivery systems are needed to protect heparin's activity and minimize side effects from administration.
• Xanthan-based materials offer potential as versatile carriers for biological agents.

Purpose of the Study:

• To develop novel xanthan-based materials for controlled heparin delivery.
• To evaluate the physical and mechanical properties of the developed materials for potential tissue engineering applications.
• To assess the ability of these materials to maintain heparin's biological activity and control its release.

Main Methods:

• Synthesis and characterization of xanthan-based polymeric networks.
• Mechanical testing to evaluate elasticity and toughness.
• In vitro release studies using the Korsmeyer-Peppas model.
• Assessment of heparin's biological activity through activated partial thromboplastin time (aPTT) and prothrombin time (PT) assays.

Main Results:

• The developed xanthan-based materials demonstrated excellent elastic behavior and toughness, suitable for tissue engineering.
• All formulations effectively controlled heparin release, following the Korsmeyer-Peppas release kinetics.
• Heparin-containing materials significantly altered aPTT and PT values, confirming the preservation of heparin's anticoagulant activity.
• The polymeric networks successfully maintained heparin's ability to modulate the blood coagulation cascade.

Conclusions:

• Novel xanthan-based materials serve as effective carriers for controlled heparin release.
• These materials preserve heparin's essential biological functions, including its anticoagulant properties.
• The developed drug delivery systems show promise for topical administration and tissue engineering applications.