Fig. 6. (A) Measurement of Cy5 counts in the presence of lysis buffer (control group, black column), 1000 H209 cells (blue column), and 1000 H157 cells (red column), respectively. (B) Linear relationship between the Cy5 counts and the logarithm of H157 cell number in the range from 1 to 10 000 cells. The concentration of each DNA probes X, Y, X′ and Y′ is 1.0 × 10–6 M. The concentration of 605QD is 8.3 nM. Error bars show the standard deviations of three experiments.
