Scientists from Novosibirsk State University have created a new bandage to stop bleeding, made from the mineral zeolite, and have obtained a patent for it.
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According to the patent, this bandage helps to stop bleeding quickly, while reducing the risk of complications, such as tissue overheating or inflammation.
Zeolite is a porous mineral that can accelerate blood clotting. However, zeolite-based hemostatic agents in loose granular form become extremely hot upon contact with tissue, potentially causing burns. To address this drawback, scientists have developed a new material: a bandage coated with a thin, uniform layer of synthetic zeolite.
The inventors first created crystals of a specific size and shape, then prepared an aqueous suspension using a safe binder, and saturated a fabric base with it. The base was then dried, and the metal was fixed in place by briefly heating it. The material was then ultrasonically washed to remove loose particles.
According to the patent, this invention relates to the production of fast-acting topical agents to stop capillary, venous and arterial bleeding during surgical procedures and in first aid situations.
To test the material, scientists measured the blood plasma clotting time in the presence of the synthetic zeolite and compared it to a standard hemostatic agent, natural kaolin. The developed material showed similar effectiveness.
Subsequently, a composite material was prepared from the zeolite-impregnated dressing, and the degree of adhesion of the particles to the fibers was tested. The results showed that after rinsing and ultrasonic treatment, the zeolite retention rate reached 90-95%, and the distribution of the crystals was uniform and in a single layer.
The inventors say: "The result is increased effectiveness in controlling bleeding while simultaneously enhancing the integrity of the material, thanks to the strong anchoring and uniform single-layer deposition of zeolite particles onto the fibers."
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