Fig. 4

Distributions of CNT/F length. Particles were binned according to size along the lower x-axis with frequency on the left y-axis. Additionally, percentage of accumulation is graphed on the right y-axis with absolute length along the upper x-axis. The overlay line is 3 parameter sigmoidal curve of best fit with the point of 50% accumulation indicated with dotted lines. Sizing was for particles in isopropanol suspension