| 摘要 |
PURPOSE:To make non-specific reaction in immune reaction difficult to arise by forming a thin layer of a metallic oxide having a prescribed thickness on the surface of a synthetic resin base material thereby and suppressing the adsorption of highly hydrophilic and unnecessary protein. CONSTITUTION:Silicon oxide is evaporated in 3X10<-6>mm.Hg degree of vacuum by electron beam heating to form a thin film of silicon oxide having 1,500Angstrom thickness on a transparent PE terephthalate sheet having, for example, 200mu thickness. A diluted serum mixed with negative and positive sera in a buffer soln. contg. glycine and salt is dropped in the separate blocks of a plate for clinical inspection consiting of such sheet. A reagent consisting of polystyrene latex adsorbed with human modified gamma-globulin is dropped onto each block and is mixed with the sera so that the liquid drop is spread to a circular shape of 25mm. diameter. The plate for deciding latex clotting with which the spreading of the liquid drop is good and the way of forming a clotted lump in the positive serum is quick and by which the distinct clotting image is obtainable is obtd. |
