Bleeding inhibiting, highly absorbent 3D-printed curdlan-based dressing insert for medical applications.

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Wound Healing

Background:

• Exudative wounds present clinical challenges due to delayed healing and infection risk from excess fluid.
• Advanced wound dressings are needed to absorb exudate and support tissue regeneration.
• 3D printing technology enables the development of innovative biocompatible materials for wound management.

Purpose of the Study:

• To develop and characterize novel 3D printed curdlan-based biomaterials for wound dressing inserts.
• To engineer materials with enhanced fluid absorption capacity and biocompatibility.
• To evaluate the potential of these materials in managing highly exuding wounds.

Main Methods:

• Synthesis of curdlan-based materials enriched with calcium ions using 3D printing.
• Engineering of porous structure, high hydrophilicity, and fluid absorption capacity.
• Comprehensive analyses including thermal stability, biological safety (cytotoxicity, mutagenicity, hemocompatibility), and cell proliferation assays.

Main Results:

• Developed curdlan-based materials exhibit a porous structure, high hydrophilicity, and significant fluid absorption capacity.
• The dry dressing inserts are compact, easy to handle, and integrate into multilayer systems.
• Materials demonstrated thermal stability, non-toxicity, non-mutagenicity, hemocompatibility, and stimulated skin cell proliferation.

Conclusions:

• 3D printed calcium-ion-enriched curdlan materials show strong potential as next-generation wound dressing inserts.
• These biomaterials are effective in managing highly exuding wounds, such as venous leg ulcers.
• The developed materials actively support tissue regeneration, addressing a key need in hard-to-heal wound management.