The depopulated bovine ureter SynerGraft (SG) (CryoLife, Inc) is a tissue-engineered vascular graft processed to remove the xenograft cells while maintaining an unfixed connective tissue matrix capable of autologous cell repopulation by the recipient.
The purpose of this study was to examine the histologic and immune response to a non-cross-linked porcine-derived dermal extracellular matrix graft processed to remove the α-gal epitope.
Graftjacket (Kinetic Concepts Inc, San Antonio, TX) is an acellular dermal graft processed from human tissue.
The surface grafting processes were all performed in water (i.e. without organic solvent).
Meanwhile, single filament tensile strength (TS) had no obvious decrease after the grafting processes.
Recent achievements in using nitroxyl derivatives in degradation, polymerization and grafting processes are discussed together with the involved chemical reactions and the resulting material properties.
Nevertheless, there is a lack of knowledge concerning the efficiency of the grafting processes, and more specifically concerning the question of the competition between covalent and non-covalent grafting.
The hyperbranched polyester was grafted to the surface of indium tin oxides glass (ITO) electrode, and the grafting processes were characterized by attentuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM).
It was revealed that there is equilibrium of grafting of GMA and depolymerization of grafted PGMA chains in the GMA/polyolefin grafting process, which was affected by both of the temperature and GMA concentration.
In comparison with traditional molten grafting process, the work presents a novel approach to increase the grafting efficiency of MAH and control the molecular weight of resultant PP-g-MAH simultaneously.
