Abstract: A self-assembled monolayer is formed on the surface of a molded article without roughening the surface of the molded article to thereby perform treatment for preventing a biochemical substance from being adsorbed, for example, on a microchip substrate, and imparting functionality of immobilizing a biofunctional molecule thereto. The surface of a cyclic olefin resin molded article, for example, a microchip substrate, is irradiated with vacuum ultraviolet light having a center wavelength of 172 nm from an excimer lamp to activate a portion serving as a flow channel in the substrate. Next, the molded is immersed in a tank filled, for example, with a fluorine compound solution, and a SAM film that is a self-assembled monolayer is formed on the surface activated by ultraviolet radiation.

Abstract: A microchip includes a reagent placement area to fix an anaerobic antibody therein. An inlet and outlet of the microchip that communicate with a channel having the reagent placement area are closed by thin plate sections and a sealing member. The sealing member is made from a silicone gel and possesses a self-repairing capability. To supply the reagent to the microchip, a fluid releasing unit having an aperture and a fluid recovering unit having an aperture are caused to penetrate the thin plate sections and the self-repairable sealing element, and enter a space including the reagent placement area. The free end of the fluid releasing unit is shaped like an injection needle, and the aperture serves as a fluid release opening. The free end of the fluid recovering unit is shaped like an injection needle, and the aperture serves as a fluid recovery opening.

Abstract: A method for forming a titanium oxide film that can be formed on a surface of a base material without a heating step. In Step 0, a surface of a molded product (base material) composed of a cyclic olefin-based resin is irradiated with ultraviolet light in an air atmosphere. In Step 1, the base material is immersed in a mixed liquid of an aqueous solution of titanium chloride and a nitrite ion-containing aqueous solution. A titanium oxide film grows by repeating oxidation of a titanium ion. In Step 2, the base material is pulled out from the mixed liquid, and then washed to stop the reaction. The film thickness can be controlled by controlling this immersion time. In Step 3, the base material after washing is dried at room temperature.

Abstract: A microchip includes a reagent placement area to fix an anaerobic antibody therein. An inlet and outlet of the microchip that communicate with a channel having the reagent placement area are closed by thin plate sections and a sealing member. The sealing member is made from a silicone gel and possesses a self-repairing capability. To supply the reagent to the microchip, a fluid releasing unit having an aperture and a fluid recovering unit having an aperture are caused to penetrate the thin plate sections and the self-repairable sealing element, and enter a space including the reagent placement area. The free end of the fluid releasing unit is shaped like an injection needle, and the aperture serves as a fluid release opening. The free end of the fluid recovering unit is shaped like an injection needle, and the aperture serves as a fluid recovery opening.

Abstract: In a method for forming a titanium oxide film, with which a titanium oxide film can be formed on a surface of a glass base material, a surface of a molded product composed of a glass is irradiated with ultraviolet light in an air atmosphere in step 0. In Step 1, the base material is immersed in a mixed liquid of an aqueous solution of titanium chloride and a nitrite ion-containing aqueous solution. As a result of the immersion, a titanium oxide film is grown by repeating oxidation of a titanium ion, binding of the oxidized titanium ion to oxygen, and binding of the bound oxygen to a titanium ion at the cleaved end of the glass molded product. In Step 2, the base material is pulled out from the mixed liquid, and then washed to stop the reaction. The film thickness can be controlled by controlling the immersion time.

Abstract: A method for forming a titanium oxide film that can be formed on a surface of a base material without a heating step. In Step 0, a surface of a molded product (base material) composed of a cyclic olefin-based resin is irradiated with ultraviolet light in an air atmosphere. In Step 1, the base material is immersed in a mixed liquid of an aqueous solution of titanium chloride and a nitrite ion-containing aqueous solution. A titanium oxide film grows by repeating oxidation of a titanium ion. In Step 2, the base material is pulled out from the mixed liquid, and then washed to stop the reaction. The film thickness can be controlled by controlling this immersion time. In Step 3, the base material after washing is dried at room temperature.

Abstract: A self-assembled monolayer is formed on the surface of a molded article without roughening the surface of the molded article to thereby perform treatment for preventing a biochemical substance from being adsorbed, for example, on a microchip substrate, and imparting functionality of immobilizing a biofunctional molecule thereto. The surface of a cyclic olefin resin molded article, for example, a microchip substrate, is irradiated with vacuum ultraviolet light having a center wavelength of 172 nm from an excimer lamp to activate a portion serving as a flow channel in the substrate. Next, the molded is immersed in a tank filled, for example, with a fluorine compound solution, and a SAM film that is a self-assembled monolayer is formed on the surface activated by ultraviolet radiation.