Development of an infection-resistant, bioactive wound dressing surface

Area of Science:

• Biomaterials Science
• Infectious Disease Research
• Hemostasis and Thrombosis

Background:

• Trauma significantly contributes to morbidity and mortality.
• Existing biomaterials often lack integrated infection resistance and hemostatic properties.
• Developing multifunctional surfaces is crucial for improving trauma patient outcomes.

Purpose of the Study:

• To engineer a novel biomaterial surface with combined localized infection resistance and hemostatic capabilities.
• To test the hypothesis that specific surface characteristics can be integrated into a single biomaterial.
• To evaluate the efficacy of the developed biomaterial in vitro and ex vivo.

Main Methods:

• Woven Dacron (Cntrl) material functionalized with ethylenediamine (C-EDA).
• Antibiotic ciprofloxacin (Cipro) applied to C-EDA material (C-EDA-AB).
• Surface immobilization of thrombin (C-EDA-AB-Thrombin) for hemostatic properties.

Main Results:

• C-EDA-AB surfaces exhibited antimicrobial activity for 5 days, significantly longer than controls (<1 h).
• C-EDA-AB-Thrombin surfaces showed substantially higher thrombin activity (2.6- and 105-fold).
• Ex vivo analysis demonstrated rapid surface thrombus formation (evident by 1 min) on C-EDA-AB-Thrombin surfaces.

Conclusions:

• Simultaneous incorporation of ciprofloxacin and thrombin onto a biomaterial surface is feasible.
• The developed surface maintains the biological activity of both incorporated agents.
• This novel biomaterial demonstrates potential for enhanced trauma care by providing dual infection resistance and hemostasis.