Polyacrylic Acid Functionalized Nanographene as a Nanocarrier for Loading and Controlled Release of Doxorubicin Hydrochloride

Figure 6

UV-vis absorption of DOX and DOX-PAA-GNS in aqueous solutions. The DOX absorbance at 490 nm was used to determine the loading efficiency (inset is the standard curve of DOX absorbance to its concentration).