Abstract: In response to an express need for an immunoassay device with universal applicability, which further promotes the goals of inventory reduction and simplified, less costly manufacture, a container for holding materials used in conjunction with an immunoassay, having a housing with an inside, an outside, and a top, wherein the top is provided with a plurality of apertures communicating with the inside of the housing, and a thin web of opaque material applied over the top of the housing covering at least one but not all of the apertures.

Abstract: The invention provides a disposable device for collecting, transporting and storing semi-solid or liquid specimens prior to analysis. A sample of the collected specimen is removed from the device for analysis by means of a detachable transferring stick, one area of which is the sample collecting portion of the device and another area of which is an integral handle. The device also provides for the collection of a liquid sample drained from a defined volume of a semi-solid specimen through porous screen and collected on the detachable transferring stick. A sample of the specimen or liquid from it may be flushed from the stick for a qualitative or quantitative determination of analyte. The device is useful in collecting fecal specimens and detecting occult blood therein by a determination of hemoglobin in the specimen itself or in a liquid sample drained therefrom.

Abstract: The invention disclosed herein relates to the field of one-step assays and latex agglutination tests ("LAT"), and provides an improved method of preparing and using a one-step immunoassay, as well as improved methods of preparing coated latex particles for use in diagnostic assays, and especially, immunochromatographic assays.

Abstract: Disclosed is a method for detecting analytes in samples of whole blood using solid-phase, permeable support assay devices. The whole blood assays require no steps or reagents other than those necessary to carry out the same analysis on plasma or serum using the devices. The color visualization of the analytical field on which the interpretation of the assay depends is not affected by the presence of intact erythrocytes or any degree of hemolysis in the blood sample.

Abstract: Disclosed is a method for detecting analytes in samples of whole blood using solid-phase, permeable support assay devices. The whole blood assays require no steps or reagents other than those necessary to carry out the same analysis on plasma or serum using the devices. The color visualization of the analytical field on which the interpretation of the assay depends is not affected by the presence of intact erythrocytes or any degree of hemolysis in the blood sample.