Synthesis and description characterization of hydrogels graphene oxide / molybdenum disulfide based nanosheets

Nowadays, hydrogels has revolutionized in the wound healing field to improve the therapeutic activity. Various hydrogels made from natural or synthetic polymers have been widely used in this field due to their good biocompatibility, indicating a promising perspective in regenerative medicine.1,2 Although many techniques have been devoted to promote the performance, physicochemical and therapeutic purposes of hydrogels, however, there are still many challenges in this area.3,4In this study, novel 2D nanomaterials-gelatin hydrogels were synthesized by participation of the graphene (G) and MoS2 nanosheets with multivalent functional groups (Fig.1). An effective strategy was applied to synthesize the multivalent functionalized MoS2/G nanosheets by stepwise polymerization of glycidol on nanosheets surface (G/MoS2-hPG) and conjugation of NH2 groups to surface. The highest surface area of embedded two-dimensional (2D) nanomaterials in the gelatin hydrogel with the ability of covalent multivalent interactions significantly improved the mechanical and rheological properties as well as biological activity of hydrogels. Their structure and properties were systematically characterized by X-ray diffraction (XRD), thermo gravimetric analysis (TGA), Elemental analysis (CHNS), swelling experiments, scanning electron microscopy (SEM), mechanical and rheological tests.

کلیدواژه ها:

Hydrogel ، Molybdenum disulfide ، Graphene oxide ، Hyperbranched polyglycerol