Abstract: Provided is a high-function organoid composition. Also provided is a method of producing the organoid composition. The organoid composition is characterized by including: an organoid including a cell cluster of endodermal cells; and an amphiphilic block polymer having a hydrophilic block chain having a sarcosine unit and a hydrophobic block chain having a lactic acid unit. The organoid composition may be produced by culturing the endodermal cells in a culture system containing the amphiphilic block polymer. The organoid composition thus obtained can evaluate pharmacokinetics and drug toxicity, and is hence suitable for drug screening.

Abstract: Provided is a securing structure for an optical component enabling stress generated when adhesive for securing an optical component is cured and shrunk to be reduced and enabling distortion of the optical component to be suppressed. Provided is a securing structure for an optical component including an optical component, and an adhesive portion that is in contact with a holding portion for the optical component. The adhesive portion includes a first adhesive cured material layer and a second adhesive cured material layer, the first adhesive cured material layer is located between the optical component and the second adhesive cured material layer, and a storage elastic modulus of the first adhesive cured material layer is lower than a storage elastic modulus of the second adhesive cured material layer.

Abstract: There is provided a film-forming apparatus including a roll-to-roll mechanism and a heating unit. The roll-to-roll mechanism is configured to transport a film-forming target and includes a tensile force relaxation unit configured to relax a tensile force applied to the transported film-forming target. The heating unit is configured to heat the film-forming target transported by the roll-to-roll mechanism.

Abstract: There is provided a film-forming apparatus including a roll-to-roll mechanism and a heating unit. The roll-to-roll mechanism is configured to transport a film-forming target and includes a tensile force relaxation unit configured to relax a tensile force applied to the transported film-forming target. The heating unit is configured to heat the film-forming target transported by the roll-to-roll mechanism.

Abstract: There is provided a film-forming apparatus including a roll-to-roll mechanism and a heating unit. The roll-to-roll mechanism is configured to transport a film-forming target and includes a tensile force relaxation unit configured to relax a tensile force applied to the transported film-forming target. The heating unit is configured to heat the film-forming target transported by the roll-to-roll mechanism.