Figure 1.
Images of as-prepared GBM dispersions (500 µg mL−1) in glass vials for stability evaluation. From left to right: GOn dispersion; GOn/PEG (GOn mixed with PEG without thermal treatment); rGOn dispersion (after thermal treatment without PEG functionalization); rGOn-PEG (simultaneously reduced and non-covalently PEGylated).