| abstract |
A membrane structure is disclosed having controlled capillarity useful in detecting cells in a solution by promoting effective contacting between cells and the membrane surface bearing affinity for selected cell sites. Also disclosed is a mtehod of using such membrane structures to detect particles in solution. One embodiment of the invention is an improved blood-typing device and method. The device may be attached to a blood bag, clamp, stick or the like, to provide a permanent visual record of blood type. |