Figure 2.

Representative baseline-corrected Raman spectra (632.8-nm laser excitation) of a HiPco BSA-SWNT dispersion (i.e., the fourth supernatant), the third-supernatant of the BSA-SWNT dispersion protocol, and the sediment from the first centrifugation of the BSA-SWNT dispersion protocol; the (12,3)/(13,4) bundling ratios of the three samples were 0.17, 0.30, and 1.22, respectively. The spectra were offset for clarity and normalized to a common intensity scale.