Macromolecular Materials and Engineering · 2010 · 374 citations · 43 references
Natural SciencesMaterials SciencePharmaceuticsDrug DeliveryNanomaterialsNanoparticle Drug DeliveryCarbon NanomaterialsControlled Release MechanismsDrug Delivery BiomaterialsGraphene NanomaterialsNanomaterials For Drug DeliveryNanomedicineChitosan NanocarriersChitosan-based NanomaterialsGrapheneGraphene CharacterizationGraphene OxideGraphene-based Materials
Abstract Chitosan‐functionalized graphene oxides (FGOCs) were successfully synthesized. FGOCs were found to significantly improve the solubility of the GO in aqueous acidic media. The presence of organic groups was confirmed by means of XPS and TGA. Restoration of the sp 2 carbon network and exfoliation of graphene sheets were confirmed by Raman spectroscopy, UV‐visible spectroscopy and WAXD. The SEM and AFM investigations of the resultant FGOCs showed that most of the graphene sheets were individual and few were layered. Controlled release behavior of Ibuprofen and 5‐fluorouracil was then investigated. We found that FGOCs are a promising new material for biological and medical applications. magnified image
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A. K. Geǐm, Kostya S. Novoselov · Nature Materials · 2007 · 39.5K citations
Two-dimensional gas of massless Dirac fermions in graphene
Kostya S. Novoselov, A. K. Geǐm, Da Jiang et al. · Nature · 2005 · 21.4K citations · Full text
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Yuanbo Zhang, Yan‐Wen Tan, H. L. Störmer et al. · Nature · 2005 · 13.4K citations · Full text