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Schematic illustrations (a) and AFM image (b) of 2D DNA lattices. Schematic illustrations (c) and AFM image of 5 nm- (d) and 10 nm-sized (e) AuNPs lattices, scale bars: 500 nm. SEM images of 20 nm-sized (f) and 30 nm-sized (g) AuNPs lattices, scale bars: 1 μm.
