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Multiplex detection using structural color-barcode micromotors. (a) The schematic of the nucleic-acid multiplex detection mechanism. (b) The fluorescence statistics after incubating three different barcode micromotors with different targets. Optical microscopy images (c) and fluorescence images (d) of the three kinds of micromotors after incubating with the target DNAs. The scale bar is 350 μm.
