The present invention relates to a stable self-assembling graphene oxide-protein matrix comprising a disordered protein (DP) and graphene oxide (GO), wherein the DP has an opposite charge to the GO, further wherein the graphene oxide-protein matrix is in the form of a 3D structure having a lumen defined by a membrane having an inner and outer surface. The invention further relates to methods and kits for preparing such a graphene oxide-protein matrix and its uses.
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