Molecular Dynamics Study of Stability and Diffusion of Graphene-Based Drug Delivery Systems

Figure 12

(a) Atomic structure of GO-PEG complex. The GO-PEG is divided into four parts decorated by four types of functional groups (i) hydroxy, (ii) carboxide, (iii) epoxy group, and (iv) carboxyl, respectively. (b) Typical atomic structures of graphene oxide-drug complex CE6₈@GO-PEG (top view and side view).

(a) GO-PEG

(b) (CE6₈)@(GO-PEG)