Figure 4.

Label-free detection of cystatin A using FLOWER. The combined plot for all five mice samples with 100 pM calibrations. A, the line plot of the initial slope values as a function of days since tumor implantation. The dashed line indicates the value obtained from the normalized standard concentration of 100 pM. B, linearly fitted initial slope values versus time. The same plot can be found in supplemental Fig. S8 with the confidence intervals plotted.