Abstract: Provided are a method for producing a cell tissue, including a culturing step of culturing cells capable of serving as a feeder inside opening pores and communicating pores of a porous film having a plurality of the opening pores provided on a surface thereof and the communicating pores communicating mutually adjacent opening pores with one another; and a porous film including a plurality of opening pores provided on a surface thereof and communicating pores communicating mutually adjacent opening pores with one another.

Abstract: The present disclosure provides a membrane separation method of a cell suspension which can appropriately separate cells from debris, and a cell culture device. That is, membrane separation processing of the cell suspension is performed using a filtration membrane which includes an inlet-side opening formed on one surface and an outlet-side opening, which is formed on the other surface and communicates with the inlet-side opening, and in which the inlet-side opening and the outlet-side opening are disposed at positions deviated in a direction parallel to the surfaces of the membrane.

Abstract: A culture container has a first inflow port and a first outflow port. The first flow path connects the first outflow port to the first inflow port. A storage container is provided within the first flow path and has a second inflow port which is connected to the first outflow port and a second outflow port which is connected to the first inflow port. A second flow path connects a first region within the first flow path, and a second region within the first flow path. A division processing portion is provided within the second flow path, performs a division process of dividing a cell aggregation flowing in from the first flow path, and allows the cells subjected to the division process to flow out into the first flow path via the second region. A medium supply portion supplies a medium to the inside of the first flow path.

Abstract: There is provided a conductive film having conductivity in a surface direction, being deformable, having excellent durability, and transmitting visible light. A conductive film includes a film substrate and a conductive material layer. The conductive material layer is provided on a first substrate surface of the film substrate. A plurality of through holes penetrating the film substrate and the conductive material layer in a thickness direction are formed in the conductive film. The conductive material layer has a plurality of conductive portions, and the conductive portions are present between adjacent layer opening portions. The number of the conductive portion is 400 per 1 mm2, and an opening ratio of the conductive material layer is at least 40%.

Abstract: Provided are a method for producing a cell tissue, including a culturing step of culturing cells capable of serving as a feeder inside opening pores and communicating pores of a porous film having a plurality of the opening pores provided on a surface thereof and the communicating pores communicating mutually adjacent opening pores with one another; and a porous film including a plurality of opening pores provided on a surface thereof and communicating pores communicating mutually adjacent opening pores with one another.

Abstract: The present disclosure provides a membrane separation method of a cell suspension which can appropriately separate cells from debris, and a cell culture device. That is, membrane separation processing of the cell suspension is performed using a filtration membrane which includes an inlet-side opening formed on one surface and an outlet-side opening, which is formed on the other surface and communicates with the inlet-side opening, and in which the inlet-side opening and the outlet-side opening are disposed at positions deviated in a direction parallel to the surfaces of the membrane.

Abstract: The present disclosure provides a method for subculturing pluripotent stem cells suitable for mass culture. The method for subculturing pluripotent stem cells includes: a culture step of culturing pluripotent stem cells to obtain a cell aggregation; and a dividing step of dividing the cell aggregation by passing the cell aggregation through a mesh-like film, which has a plurality of through-holes each having an opening dimension of 30 ?m to 80 ?m, at a speed of 15 cm/sec to 150 cm/sec.

Abstract: There is provided a conductive film having conductivity in a surface direction, being deformable, having excellent durability, and transmitting visible light. A conductive film includes a film substrate and a conductive material layer. The conductive material layer is provided on a first substrate surface of the film substrate. A plurality of through holes penetrating the film substrate and the conductive material layer in a thickness direction are formed in the conductive film. The conductive material layer has a plurality of conductive portions, and the conductive portions are present between adjacent layer opening portions. The number of the conductive portion is 400 per 1 mm2, and an opening ratio of the conductive material layer is at least 40%.

Abstract: Provided is a composite binder material, a cell aggregate, a cell accumulation method, a cell preservation method, and a method of manufacturing a composite binder that can supply oxygen and nutrients to cells. A composite binder material comprises a binder material and a cell non-adhesive portion. A binder material formed in a membrane shape is provided between a first cell sheet and a second cell sheet. The cell non-adhesive portion formed at least in a portion of one membrane surface and/or other membrane surface of the binder material. A plurality of pores are formed in the binder material, and the pores open to the one membrane surface coming into contact with one sheet surface of the first cell sheet. The pores penetrate in a thickness direction and a surface direction along the one membrane surface. The porosity of the binder material is set to be at least 50%.

Abstract: A culture container has a first inflow port and a first outflow port. The first flow path connects the first outflow port to the first inflow port. A storage container is provided within the first flow path and has a second inflow port which is connected to the first outflow port and a second outflow port which is connected to the first inflow port. A second flow path connects a first region within the first flow path, and a second region within the first flow path. A division processing portion is provided within the second flow path, performs a division process of dividing a cell aggregation flowing in from the first flow path, and allows the cells subjected to the division process to flow out into the first flow path via the second region. A medium supply portion supplies a medium to the inside of the first flow path.

Abstract: Disclosed is a film which is able to suppress agglutination by being continuously adhered to an adhesion target portion in a biological body while suppressing a position shift. A film includes an adhesive and an adhesion inhibiting layer. The adhesive layer absorbs and maintains a liquid in a plurality of pores which are opened in one film surface and has a capillary force for adhering the adhesive layer to a first-cell group. The adhesive layer is formed of a biodegradable polymer. The adhesion inhibiting layer configures the other film surface, and inhibits adhesion between a second-cell group which is different from the first-cell group and the adhesive layer. In the adhesive layer, the pore is formed not to be penetrated in a thickness direction of the film, and thus the first-cell group and the second-cell group are separated into the one film surface side and the other film surface side.

Abstract: Film, which has a fine structure and is adhered to various materials in an easy and strong manner without an adhesive agent, and a composite structure, film laminate, producing method and etching method, are provided. Solution in which a hydrophobic high molecular compound and a catechol group-containing compound are dissolved in solvent is cast, to form cast film. Dew is condensed on an uncovered surface of the cast film. The solvent and water droplets upon the condensation are evaporated from the cast film, to produce porous film. The porous film has a honeycomb structure in which plural pores are formed in one film surface. The pores are in a substantially equal shape and size, and are arranged regularly at a constant pitch. The film surface on a side having the pores of the porous film is a functional surface having an adhesive property.