A Russian schoolgirl has developed a gelatin-based hemostatic sponge that absorbs liquid 40 times its own weight, disinfects the wound, and completely dissolves after use. The new development can be used in everyday life, dentistry, surgery, and military medicine.
The development is based on ordinary gelatin, which absorbs liquid well. The sponge also includes an alcohol-free antiseptic, which does not cause pain, and aloe vera extract, which enhances the antimicrobial effect.
To create the material, three solution variants with different gelatin concentrations were prepared. Surfactants, calcium chloride, soda, citric acid, antiseptic, and dye were added to them. Then, the solutions were heated to 50 °C, whipped into a foam, poured into molds, and frozen three times. This method allowed for obtaining a porous structure that absorbs liquid well.
I have always been interested in how to help people using available materials. Gelatin is a simple and safe component, and its ability to absorb liquid 40 times its own weight makes it an ideal base for a hemostatic sponge. The plans are to continue research and test its effectiveness on other types of bacteria.
During laboratory tests, specialists checked the absorbency, solubility, and antibacterial properties of the material. The tests showed high absorbency, controlled solubility, and noticeable effectiveness against E. coli.
The sponge stops bleeding, disinfects the wound, promotes healing, and completely dissolves after use, so it does not need to be removed. The project became a prize-winner of the regional stage of the "Big Challenges" competition, and also won a prize at the XI open city scientific and practical conference "Start in Medicine – 2026".