Sustained Release and Cytotoxicity Evaluation of Carbon Nanotube-Mediated Drug Delivery System for Betulinic Acid

Figure 6

(a) Raman spectra of the RBM region for f-SWCNTs and f-SWCNTs-BA. (b) Raman spectra D and G bands for f-SWCNTs and f-SWCNTs-BA, respectively.

(a)

(b)