Abstract: The present invention relates to immobilized procainamide analogs, as well as to a method of making immobilized procainamide analogs. These immobilized analogs are prepared by activating the carboxyl group on a substituted p-benzoic acid derivative toward nucleophilic attack; reacting the activated benzoic acid derivative with a polyamine to produce the benzoic acid derivative of Formula 3: and binding the benzoic acid derivative of Formula 3 to a latex polymer having functional groups that react with aliphatic amino groups. A method of conducting an immunoassay using the immobilized procainamide analog Formula 3 is described, comprising the steps of preparing a solution comprising said immobilized procainamide analog; adding a sample suspected of containing procainamide to said solution; adding an anti-procainamide antibody to said solution and observing the rate of increase in solution turbidity following antibody addition.

Abstract: A label for a product includes an electronic display for displaying label information. The digital label includes a processor, a memory, and a display configured to store and display label information about a product to which the label is attached. The digital label also stores product authentication data for authenticating the product to which the label is attached.

Abstract: A label for a product includes an electronic display for displaying label information. The digital label includes an operating system program with an applications interface to allow development of custom applications by manufacturers, retailers, and users of the product. The digital label also includes a communications interface enable communication with external devices, such as other computer systems. The processor in the digital label can process, display, and transmit information.

Abstract: Lidocaine analogs, latex particle-analog conjugates, and methods of making and using the same. The analogs have the formula: wherein Z comprises a nucleophilic group and optionally a protecting group; L is a linker; R1, R2, R3, R4, R5 are each independently H, a protecting group, or C1 to C6 alkyls, provided that R1 and R3 may form a six membered ring with the nitrogen and carbon atom to which R1 and R3 are attached; R6 and R7 are each independently H or C1 to C20 alkyls; and including salts thereof. The analogs are immobilized on latex particles and prepared for use in assays for lidocaine.

Abstract: The present invention relates to immobilized procainamide analogs, as well as to a method of making immobilized procainamide analogs. These immobilized analogs are prepared by activating the carboxyl group on a substituted p-benzoic acid derivative toward nucleophilic attack; reacting the activated benzoic acid derivative with a polyamine to produce the benzoic acid derivative of Formula 3: and binding the benzoic acid derivative of Formula 3 to a latex polymer having functional groups that react with aliphatic amino groups. A method of conducting an immunoassay using the immobilized procainamide analog Formula 3 is described, comprising the steps of preparing a solution comprising said immobilized procainamide analog; adding a sample suspected of containing procainamide to said solution; adding an anti-procainamide antibody to said solution and observing the rate of increase in solution turbidity following antibody addition.

Abstract: A label for a product including an electronic display such as a liquid crystal display for displaying label information. The label information may include a company name or logo that identifies the source of the product, product information such as the material content of the product or care instructions, and manufacturer information. The label information can be contained in multiple screen images which can be stepped through by pressing a button or touch-sensitive area of the display. The display can also be programmed to display a series of related images in sequence to produce an animated logo.

Abstract: A label for a garment including an electronic display such as a liquid crystal display for displaying label information. The label information may include a company name or logo that identifies the source of the garment, product information such as the material content of the garment or care instructions, and manufacturer information. The label information can be contained in multiple screen images which can be stepped through by pressing a button or touch-sensitive area of the display. The display can also be programmed to display a series of related images in sequence to produce an animated logo.