The invention provides for rapid response analysis through lateral flow chromatographic assays of specific antigens present in human or animal fluids, or in agricultural, microbial or biological products, with an audio and visual result of the analysis and when needed, an electronic surge to provide heat for rapid results. A lateral flow device for conducting the analysis includes a plurality of components, and a method for making the device forms components of the device on an elongate, ribbon-like substrate of dielectric material, then folds the substrate into shorter lengths which are then secured together to establish a multiple-layered, self-sustaining structure.