In vitro diagnostic tool, membrane for in vitro diagnostic tool, and production methods of the tool and the membrane

摘要

Provided is an in vitro diagnostic tool configured to quantitatively or qualitatively detect a suspected substance in a test solution, the tool including: a first porous layer having a first surface and a second surface; a base sheet bonded to the first surface; a second porous layer bonded to the second surface; and a reagent configured to react with the suspected substance and carried in at least a part of the second porous layer, wherein: the first porous layer has a matrix structure of first nanofibers formed by electrostatic spinning; the second porous layer has a matrix structure of second nanofibers formed by electrostatic spinning; and a fiber diameter of the second nanofibers is smaller than a fiber diameter of the first nanofibers.