Research Article

Research on the Targeted Treatment of Squamous Cell Carcinoma by Nanographene Drug Delivery System

Figure 1

Characterization of graphene oxide. (a) Raman spectra of graphene oxide before centrifugation (left) and after centrifugation (right); (b) (A) and (B) are the SEM images of graphene oxide before ultrasound, and (C) and (D) are the SEM images of graphene oxide after ultrasound.
(a)
(b)