Abstract: Provided is an optical waveguide device (100) including a substrate (3) formed into a plate shape, a soft material (2) having swellability, formed into a film shape, and provided on a side of one surface of the substrate, a pair of adhesive regions (B1), formed at an interface between the substrate and the soft material, in which the substrate and the soft material are adhered to each other, a non-adhesive region (B2) formed so that the substrate and the soft material are not adhered to each other between the pair of adhesive regions, a protruding part (2B) in which a channel is formed so as to protrude in the non-adhesive region in the soft material, a liquid (W) filled into the channel and having a higher refractive index than the soft material, a pair of liquid feed tubes (8) connected to both ends of the channel, and a pair of optical fibers (9) inserted into the pair of liquid feed tubes respectively, wherein an optical waveguide is formed in the protruding part, and the optical waveguide includes a clad

Abstract: There are provided a hydrogel fluid device which includes a flow path having an arbitrary shape that can be formed by a simple method and in which a material of a base component can be arbitrarily selected and the mechanical strength is excellent when the flow path is processed, and a method of producing the same.

Abstract: A laminate including a base member, and a hydrogel layer whose forming material is a hydrogel, the hydrogel layer being provided on a surface of the base member. An adhesive region and a non-adhesive region are formed at an interface between the base member and the hydrogel layer, the adhesive region being a region where the base member and the hydrogel layer adhere to each other, the non-adhesive region being a region where the base member and the hydrogel layer do not adhere to each other.