Researchers at the University of Wales use advanced patches to "repair" damaged hearts
Recently, a research report published in the international magazine Science Advances, researchers from the University of New South Wales made a major breakthrough in the field of heart attack research, they developed a polymer patch (polymer patch) It can significantly improve the electrical pulse conduction along the damaged heart tissue. This variable patch structure is now well used in animal models, has a long lasting fit, and is firmly adhered to the heart without the need for sewing threads.
Researcher Sian Harding said that heart attacks usually produce scars that slow and interfere with electrical pulse conduction along the surface of the heart, which can cause potentially lethal interference with heart rhythms; Conductive polymer patches are a good solution to this problem. This new patch consists of three components: a chitosan layer, a polyaniline component, and a phytic acid component. The conductive polymer can function when it is in a dry state, but it becomes a non-conductive state in a short time when it is placed in a body fluid.
The non-stitched patches developed by the researchers in this study show great advantages, are very stable, and can maintain a conductive state for more than two weeks under physiological conditions, while other conductive polymers are usually only one day. . When exposed to green light, the new patch can be adsorbed onto heart tissue, and the researchers implanted it into rats for related research. The results show that it can significantly improve the electrical pulse conduction of cardiac scar tissue in rats. process.
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