Abstract: The object of the present invention is to provide a production process of a microfluidic device in which a porous resin layer, which is capable of optimally fixing a large amount of enzyme, antigen or other protein or catalyst on the inner surface of a minute channel of a microfluidic device without obstructing said channel, is formed at a uniform thickness on the surface of said channel. In the present invention, by preliminarily forming a porous resin layer having a large number of pores in its surface on a substrate, and forming an indentation having a porous resin layer on its bottom surface by using an activating energy beam-curable composition on said porous resin layer, followed by forming a channel by adhering a member serving as a cover to said indentation, a porous resin layer can easily be formed at a uniform thickness on the surface of said channel.

Abstract: The object of the present invention is to provide a production process of a microfluidic device in which a porous resin layer, which is capable of optimally fixing a large amount of enzyme, antigen or other protein or catalyst on the inner surface of a minute channel of a microfluidic device without obstructing said channel, is formed at a uniform thickness on the surface of said channel. In the present invention, by preliminarily forming a porous resin layer having a large number of pores in its surface on a substrate, and forming an indentation having a porous resin layer on its bottom surface by using an activating energy beam-curable composition on said porous resin layer, followed by forming a channel by adhering a member serving as a cover to said indentation, a porous resin layer can easily be formed at a uniform thickness on the surface of said channel.

Abstract: The fixing device comprises a body adapted to be secured directly onto a brittle wall or secured to the brittle wall with a member to be attached to the wall interposed therebetween. The body is formed with at least two guide holes passing therethrough from the top to the bottom thereof each for receiving therein a fixing member such as a set screw or a nail so that it is driven into the wall to thereby fixedly secure the body onto the wall. The guide holes are oriented in such an inclinded direction with respect to the normal to the wall that the fixing members do not intersect with each other and do not extend in parallel to each other when they are inserted into the body and driven into the wall, thereby permitting the body to be securely fixed to the wall. An engaging member having integrally formed therewith a supportng portion such as a hook or a hanger may be detachably engaged over the body.