Functionalized nanofiber system for accelerated regeneration of internal tissues

Functionalized nanofiber system for accelerated regeneration of internal tissues Abstract Functionalization can adjust the properties of nanofibers prepared by electrospinning to best replace the missing extracellular matrix in the healing wound. In the rabbit intestinal anastomoses, functionalization of nanofibers by cryogenic fractionation has proven to be crucial. While the use of functionalized PVA and chitosan nanofiber membranes led to intestinal strictures and severe inflammation, further functionalization of PVA and chitosan nanofibers by their cryogenic fractionation led to the possibility of reducing the polymer dose, which significantly reduced the inflammatory response and significantly increased the biocompatibility of the material used. The application of fractionated nanofibers increased the fraction of microvessels, fibroblasts and collagen, which resulted in an increase in the biomechanical strength of healed anastomoses. The functionalization of the polycaprolactone nanofibers by special adhesion to the polypropylene mesh made it possible to use them as a support for the healing of the fascia in the abdominal wall of pigs. Functionalization of PVA nanofibers with glyoxal led to their increased stability in the aqueous environment. By applying a membrane of PVA functionalized nanofibers to..