Cell culturing method, cell culturing apparatus and kit comprising a porous polyimide film
First Claim
1. A cell culturing method that includes applying cells to a porous polyimide film and culturing them, whereinthe porous polyimide film has a three-layer structure consisting of an A-surface layer having a plurality of pores, a B-surface layer having a plurality of pores, and a macro-void layer sandwiched between the two surface layers,a mean pore size in the A-surface layer is smaller than a mean pore size in the B-surface layer, andthe macro-void layer has a partition bonded to the A-surface layer and the B-surface layer, and a plurality of macro-voids surrounded by the partition, the A-surface layer, and the B-surface layer.
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Abstract
The present invention relates to a cell culturing method and cell culturing apparatus and kit for use therewith. The method includes applying cells on a porous polyimide film and culturing. One embodiment includes a process for sowing cells on the surface of the film. Another embodiment includes a process for placing a cell suspension on the dried surface of the film and leaving the film undisturbed, moving the film to promote liquid efflux, or stimulating a portion of the surface to entangle the cell suspension into the film, and then retaining the cells in suspension inside the film while allowing moisture to flow out. Another embodiment includes a process for moistening one or both surfaces of the film with a cell culture solution or sterilized liquid, loading a cell suspension on the moistened film, retaining the cells in suspension inside the film, and allowing moisture to flow out.
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Citations
19 Claims
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1. A cell culturing method that includes applying cells to a porous polyimide film and culturing them, wherein
the porous polyimide film has a three-layer structure consisting of an A-surface layer having a plurality of pores, a B-surface layer having a plurality of pores, and a macro-void layer sandwiched between the two surface layers, a mean pore size in the A-surface layer is smaller than a mean pore size in the B-surface layer, and the macro-void layer has a partition bonded to the A-surface layer and the B-surface layer, and a plurality of macro-voids surrounded by the partition, the A-surface layer, and the B-surface layer.
Specification