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...http://www.google.com/patents/US5096837?utm_source=gb-gplus-sharePatent US5096837 - Immunochromatographic assay and method of using same
