Disclosed herein are a vascular graft and a method for sealing a vascular graft. The method generally includes applying a hydrogel sealant to the vascular graft thereby sealing the graft, wherein the hydrogel sealant is prepared from material selected from the group consisting of plant sourced material, synthetic material, or a combination thereof. In some embodiments, the hydrogel sealant may be prepared from albumin and a crosslinking agent or from poly(ethylene)oxide and a poly(amine).
