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. 2021 Sep 11;10:68–78. doi: 10.1016/j.bioactmat.2021.09.007

Fig. 3.

Fig. 3

ctDNA detection using the ID ring scheme with a DNAzyme and a visible color. A. Schematic illustration of the ctDNA detection using the ID ring scheme with a DNAzyme and a visible color. B. Determination of ctDNA ratios of KRAS, NRAS, PIK3CA and BRAF via the visible color change. C. Histograms with an error bar at absorbance of 370 nm of different ctDNA ratios of KRAS, NRAS, PIK3CA and BRAF. Each column bar represents the average value of three independent assays with error bars indicated. ***P < 0.001. The inset is the image of the corresponding absorption spectra from 350 to 700 nm.