| abstract |
An object of the present invention is to provide a flow channel device which hardly generates air bubbles within a flow channel and includes: a base material having a groove; and a coating material which is integrated with the base material so as to cover the groove, in which the difference (θ 1−θ2 ) between a contact angle (θ 1 ) of a portion facing the groove in the coating material with respect to pure water and a contact angle (θ 2 ) of the groove portion of the base material with respect to the pure water is −30° to 30°. |