▎ 摘 要
NOVELTY - A hollow fiber membrane comprises a polymer-based membrane, graphene oxide, and cryogel. The graphene oxide is functionalized on cryogel, in which the graphene oxide functionalized cryogel are functionalized on the polymer-based membrane. USE - Hollow fiber membrane used for developing bioreactor for culturing cells e.g. liver cells. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the hollow fiber membrane.