Abstract: To provide a semiconductor light emitting device which is capable of accomplishing a broad color reproducibility for an entire image without losing brightness of the entire image. A light source provided on a backlight for a color image display device has a semiconductor light emitting device comprising a solid light emitting device to emit light in a blue or deep blue region or in an ultraviolet region and phosphors, in combination. The phosphors comprise a green emitting phosphor and a red emitting phosphor. The green emitting phosphor and the red emitting phosphor are ones, of which the rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., when the wavelength of the excitation light is 400 nm or 455 nm, is at most 40%.

Abstract: This invention provides a cost-effective technique for mass-production of a cell culture vessel that allows mass cell culture to be performed in a manner that allows cells to be stably detached from the culture vessel. Specifically, the invention provides a method for producing a cell culture vessel suitable for large-capacity culture comprising cutting a long-sized cell support film to obtain a sheet-like cell support film, fixing the film to a first member, which is not closed, and bonding other members thereto. Thus, a cell culture vessel comprising a container section in which a cell support film is fixed to an inner wall surface can be produced.

Abstract: This invention provides a cost-effective technique for mass-production of a cell culture vessel that allows mass cell culture to be performed in a manner that allows cells to be stably detached from the culture vessel. Specifically, the invention provides a method for producing a cell culture vessel suitable for large-capacity culture comprising cutting a long-sized cell support film to obtain a sheet-like cell support film, fixing the film to a first member, which is not closed, and bonding other members thereto. Thus, a cell culture vessel comprising a container section in which a cell support film is fixed to an inner wall surface can be produced.

Abstract: This invention provides a method for obtaining biological tissue having a three-dimensional structure of interest. The method of the invention comprises: adding a cell-containing culture solution to a culture vessel having an inner bottom surface, which is non-cell adhesive and comprises a concave-convex pattern provided thereon; performing cell culture under conditions in which intercellular adhesion takes place while centrifugal or magnetic force toward the inner bottom surface is applied to the cells that were added to the culture vessel to form tissue via intercellular adhesion; and detaching and collecting the resulting tissue from the inner bottom surface at the end in order to obtain tissue having a three-dimensional configuration using a concave-convex pattern as a template.

Abstract: This invention provides a method for preparing biological tissue in which the thickness (i.e., the number of cell layers) can be easily regulated, culture can be conducted within a shorter period of time than is possible with conventional techniques, and addition of unfavorable components is not necessary. The method of the invention comprises adding a cell-containing culture solution to a culture vessel having a non-cell-adhesive inner bottom surface, conducting cell culture while centrifugal force toward the inner bottom surface is applied to the cells in the vessel, forming tissue via intercellular adhesion, and detaching and collecting the resulting tissue from the inner bottom surface.

Abstract: This invention provides a cost-effective technique for mass-production of a cell culture vessel that allows mass cell culture to be performed in a manner that allows cells to be stably detached from the culture vessel. Specifically, the invention provides a method for producing a cell culture vessel suitable for large-capacity culture comprising cutting a long-sized cell support film to obtain a sheet-like cell support film, fixing the film to a first member, which is not closed, and bonding other members thereto. Thus, a cell culture vessel comprising a container section in which a cell support film is fixed to an inner wall surface can be produced.

Abstract: The present invention provides a method for performing a biological test under conditions in which an artificially prepared cell pattern with initial position coordinates that can be determined is three-dimensionally cultured within a gelled matrix. The present invention relates to a biological test method that comprises testing a biological indicator with reference to at least one selected from the group consisting of cell proliferation, cell movement, and cell differentiation in a cell pattern substantially embedded in gel. The present invention also relates to a kit for the biological test method.

Abstract: It is an object of the present invention to provide a cell culture carrier for producing a cell sheet that can be readily detached from a cell culture carrier and is inhibited from contracting after being detached. The cell culture carrier 1 of the present invention comprises: a support-held culture membrane 4 comprising an organic thin film 2 having cell adhesion properties and biodegradability and a frame-like support 3 fixed on the periphery of the organic thin film for maintaining the dimensions of the organic thin film; and a base substrate 6 having a surface 5 with a static water contact angle of 45° or less, wherein the support-held culture membrane 4 is detachably placed on the surface 5 of the base substrate.

Abstract: The present invention provides a method for performing a biological test under conditions in which an artificially prepared cell pattern with initial position coordinates that can be determined is three-dimensionally cultured within a gelled matrix. The present invention relates to a biological test method that comprises testing a biological indicator with reference to at least one selected from the group consisting of cell proliferation, cell movement, and cell differentiation in a cell pattern substantially embedded in gel. The present invention also relates to a kit for the biological test method.

Abstract: The present invention provides a method for performing a biological test under conditions in which an artificially prepared cell pattern with initial position coordinates that can be determined is three-dimensionally cultured within a gelled matrix. The present invention relates to a biological test method that comprises testing a biological indicator with reference to at least one selected from the group consisting of cell proliferation, cell movement, and cell differentiation in a cell pattern substantially embedded in gel. The present invention also relates to a kit for the biological test method.

Abstract: It is an object of the present invention to provide a cell culture carrier for producing a cell sheet that can be readily detached from a cell culture carrier and is inhibited from contracting after being detached. The cell culture carrier 1 of the present invention comprises: a support-held culture membrane 4 comprising an organic thin film 2 having cell adhesion properties and biodegradability and a frame-like support 3 fixed on the periphery of the organic thin film for maintaining the dimensions of the organic thin film; and a base substrate 6 having a surface 5 with a static water contact angle of 45° or less, wherein the support-held culture membrane 4 is detachably placed on the surface 5 of the base substrate.

Abstract: This invention provides a method for obtaining biological tissue having a three-dimensional structure of interest. The method of the invention comprises: adding a cell-containing culture solution to a culture vessel having an inner bottom surface, which is non-cell adhesive and comprises a concave-convex pattern provided thereon; performing cell culture under conditions in which intercellular adhesion takes place while centrifugal or magnetic force toward the inner bottom surface is applied to the cells that were added to the culture vessel to form tissue via intercellular adhesion; and detaching and collecting the resulting tissue from the inner bottom surface at the end in order to obtain tissue having a three-dimensional configuration using a concave-convex pattern as a template.

Abstract: This invention provides a means for preparing biological tissue within a short period of time. This invention provides a method for preparing biological tissue comprising: adding a culture solution containing cells and an extracellular matrix component that was separately prepared to a culture vessel having an inner bottom surface, which is a non-cell-adhesive surface; and performing cell culture while centrifugal or magnetic force toward the inner bottom surface is applied to cells to obtain biological tissue comprising multi-layered cells within a short period of time.

Abstract: This invention provides a method for preparing biological tissue in which the thickness (i.e., the number of cell layers) can be easily regulated, culture can be conducted within a shorter period of time than is possible with conventional techniques, and addition of unfavorable components is not necessary. The method of the invention comprises adding a cell-containing culture solution to a culture vessel having a non-cell-adhesive inner bottom surface, conducting cell culture while centrifugal force toward the inner bottom surface is applied to the cells in the vessel, forming tissue via intercellular adhesion, and detaching and collecting the resulting tissue from the inner bottom surface.

Abstract: The present invention provides a method for performing a biological test under conditions in which an artificially prepared cell pattern with initial position coordinates that can be determined is three-dimensionally cultured within a gelled matrix. The present invention relates to a biological test method that comprises testing a biological indicator with reference to at least one selected from the group consisting of cell proliferation, cell movement, and cell differentiation in a cell pattern substantially embedded in gel. The present invention also relates to a kit for the biological test method.