Influence of surface oxygen clusters upon molecular stacking of paclitaxel over graphene oxide sheets

Aqueous dispersibility of graphene oxide (GO) sheets can be improved through enrichment of oxygen content (oxidation). However, the resulting ‘oxygen clusters’ are accompanied with numerous point defects, depletive to π-π stacking behavior of sheets. In this work, we have investigated the properties of sheets oxidized with 2, 4, 6, 8, 10 and 12 weight equivalents of KMnO4. Sheets were characterized by spectroscopic, X-ray diffraction (XRD) and...