Abstract: This invention relates to methods and apparatus for cryopreserving biological materials for extended periods of time. In an exemplary embodiment, the method comprises suspending biological materials in a cryosolution, freezing the biological materials in the apparatus, and removing the frozen biological materials from the apparatus to thaw them for use. In another embodiment, a cell cryopreservation solution is provided which includes 20% Dimethyl Sulfoxide (DMSO) to maintain the viability of cells upon freezing, storage, and thawing. The media can be used for cryopreservation of a wide variety of different cell types from various sources. In addition, an apparatus that facilitates the storage of cells and the subsequent removal of the cells for thawing to permit substantially direct inoculation of a bioreactor is disclosed.

Abstract: This invention relates to methods and apparatus for cryopreserving biological materials for extended periods of time. In an exemplary embodiment, the method comprises suspending biological materials in a cryosolution, freezing the biological materials in the apparatus, and removing the frozen biological materials from the apparatus to thaw them for use. In another embodiment, a cell cryopreservation solution is provided which includes 20% Dimethyl Sulfoxide (DMSO) to maintain the viability of cells upon freezing, storage, and thawing. The media can be used for cryopreservation of a wide variety of different cell types from various sources. In addition, an apparatus that facilitates the storage of cells and the subsequent removal of the cells for thawing to permit substantially direct inoculation of a bioreactor is disclosed.