Poly β-Cyclodextrin/Quaternary Ammoniated Chitosan Cryogel with a Porous Structure for Effective Hemostasis

Area of Science:

• Biomaterials Science
• Hemostasis Research
• Regenerative Medicine

Background:

• Uncontrolled hemorrhage is a major cause of mortality.
• Effective and rapid hemostasis remains a significant clinical challenge.
• Development of advanced hemostatic agents is crucial for improving patient outcomes.

Purpose of the Study:

• To develop novel porous cryogels for enhanced hemostasis.
• To investigate the synergistic effects of poly β-cyclodextrin (Pβ-CD) and quaternary ammoniated chitosan (QCs).
• To evaluate the hemostatic efficacy, antibacterial activity, and biocompatibility of the prepared cryogels.

Main Methods:

• Synthesis of porous cryogels incorporating Pβ-CD and QCs.
• In vitro assessment of blood absorption and concentration capabilities.
• In vivo evaluation using rat-tail amputation and liver injury models.
• Assessment of antibacterial activity and in vitro biocompatibility.

Main Results:

• The Pβ-CD/QCs cryogels exhibited rapid blood absorption and concentration.
• Excellent hemostatic performance was demonstrated in both rat-tail amputation and liver injury models.
• The cryogels displayed significant antibacterial activity against common pathogens.
• Good biocompatibility was confirmed, indicating minimal adverse effects.

Conclusions:

• Porous cryogels composed of Pβ-CD and QCs are effective hemostatic materials.
• The synergistic action of Pβ-CD and QCs enhances rapid blood clotting.
• These cryogels show promise as advanced materials for managing severe bleeding and possess beneficial antibacterial properties.