CPC C12M 25/18 (2013.01) [C12M 23/46 (2013.01); C12M 33/18 (2013.01)] | 11 Claims |
1. An apparatus for use with a cell culture system, comprising:
a structured fixed bed comprising a substrate material for achieving cell growth and cell immobilization, said structured fixed bed comprising a spiral configuration with at least two layers in direct contact with one another;
a removable sample portion comprising the substrate material, the removable sample portion being separate from the structured fixed bed;
wherein the removable sample portion is located at least partially between the at least two layers.
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