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. 2020 Aug 12;15(8):e0235948. doi: 10.1371/journal.pone.0235948

Fig 5. CPD amount evaluated by ELISA.

Fig 5

The absorbance at a wavelength of 492-nm is proportional to the CPD amounts. The mean absorbance and standard deviation of positive control, irradiated samples, non-irradiated samples, and negative control was 3.09±0.07, 0.25±0.05, 0.17±0.04, and 0.14±0.02, respectively. Each data is shown as a black spot. It is shown that the absorbance of the positive standard was significantly greater than that of the other three samples, and that of the irradiated region was significantly greater than that of the non-irradiated region and negative control. No significant difference was observed between the non-irradiated region and negative control. Abbreviation: ELISA, enzyme-linked immunosorbent assay.