Biocradle™ is macroporous beads made from cellulose and suitable for microcarrier of cell culture. The large specific surface area, superior cell adherence, and cell proliferation characteristics offered by Biocradle™ facilitate high-density cell culture. Inside the Biocradle™ pores, cells are protected from the shear forces generated within the stirred culture vessel making this technology ideal for the scale up of adherent cell culture.