Figure 2.
TEM images of (A, B) nGO and (C, D) nGO-PEG; (E) ζ-potential peak; (F) XRD patterns of nGO and nGO-PEG.
Abbreviations: nGO, nano-graphene oxide; PEG, polyethylene glycol; TEM, transmission electron microscopy; XRD, X-ray diffraction.
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