Injectable Hydrogel Stops Bleeding in 30 Seconds Using Platelet-Rich Plasma

Uncontrolled bleeding from trauma or surgery remains a leading cause of death, creating urgent need for better hemostatic materials. Traditional bleeding control methods often fail in deep irregular wounds or massive bleeding scenarios, highlighting the need for innovative solutions.

Scientists developed an injectable hydrogel combining 10% oxidized sodium alginate with 10% gelatin, loaded with platelet-rich plasma exosomes (PRP-Exo). This biomaterial gels within 8 seconds of injection and demonstrated remarkable hemostatic properties in laboratory testing.

The hydrogel achieved hemostasis in approximately 30 seconds in both rat tail-cutting and liver bleeding models. Blood coagulation tests showed significantly reduced clotting times and enhanced coagulation pathways, indicating the material creates a hypercoagulable state that promotes rapid bleeding control. Additionally, the hydrogel enhanced cell proliferation and blood vessel formation in laboratory studies.

This technology could transform emergency medicine by providing rapid, effective bleeding control where conventional methods fail. The injectable nature allows treatment of deep, irregular wounds, while the biological components promote healing. The material shows particular promise for patients with bleeding disorders or those on anticoagulant medications, offering a controlled environment for hemostasis. However, human clinical trials are needed to validate safety and efficacy before widespread medical adoption.