DEVICES FOR USE IN CHEMICAL TEST PROCEDURES

摘要

The invention relates to a device for use in methods of assay, for example those involving fluorescent moieties. The device possesses a cavity or cavities into which sample liquid may be drawn by capillary action. Each cavity is formed from two transparent solid plates (35, 36): one (36) is adapted to act as a waveguide and carries a suitable immobilised reagent on its surface within the cavity; the other (35) carries on its external surface and optionally also on part only of its internal surface a layer of tight-absorbing material (37). The invention also relates to a method of manufacturing devices according to the invention, and to a method of assaying for a ligand in a sample using a device according to the invention.