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A schematic illustration of the (a) aptamer-AuNPs-based aggregation method for the detection of mouse IL-6; (b) LFIA incorporated with silver enhancement for the IL-6 detection in serum; and (c) sandwich immunoassay-based on magnetic nanoparticles and oxidase activity of ceria nanospheres. Reprinted from Refs. [33,54,68], respectively, with permission.
