Disclosed herein is a hydrogel comprising hyaluronic acid polymers that are at least partially crosslinked with fibrinogen molecules. Also disclosed is a composition comprising a glycidyl methacrylate hyaluronic acid monomer chemically conjugated to a fibrinogen molecule. Also disclosed is a method for producing a hydrogel that involves combining the disclosed composition containing GMHA-Fib precursors with an effective amount of a photoinitiator and light (e.g. UV light) to crosslink unconjugated methacrylate sites through free-radical polymerization. Also disclosed is a method for treating a subject with a peripheral nerve injury that involves implanting the disclosed hydrogel at the site of the injury to promote neural regeneration.