The present disclosure relates to bioactive hydrogels derived from human blood plasma. More particularly, the disclosure relates to multifunctional materials for cell encapsulation, cell culture platforms, medical treatment apparatus and methods, more particularly, hydrogels derived from human blood components and technologies for use of such materials in research, biomedical treatment, biotech and pharmaceutical industry. The disclosure further relates to 3D printable scaffolds, sponges, foams, fibers, particles, capsules, membranes and injectable systems comprising said hydrogel. Additionally, this disclosure allows for the controlled placement of biologically active components that may be delivered by the hydrogel compositions.