Reactive Graphene Oxide Nanosheets: A Versatile Platform for the Fabrication of Graphene Oxide–Biomolecule/Polymer Nanohybrids | Zendy

Xu Li Qun | Zendy; Zhang Bin | Zendy; Chen Yu | Zendy; Neoh KoonGee | Zendy; Kang EnTang | Zendy; Fu Guo Dong | Zendy

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Reactive Graphene Oxide Nanosheets: A Versatile Platform for the Fabrication of Graphene Oxide–Biomolecule/Polymer Nanohybrids

Author(s) -

Xu Li Qun,

Zhang Bin,

Chen Yu,

Neoh KoonGee,

Kang EnTang,

Fu Guo Dong

Publication year - 2013

Publication title -

macromolecular rapid communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 154

eISSN - 1521-3927

pISSN - 1022-1336

DOI - 10.1002/marc.201200635

Subject(s) - graphene , biomolecule , materials science , oxide , polymer , nanotechnology , fabrication , polymer chemistry , chemical engineering , composite material , medicine , alternative medicine , pathology , engineering , metallurgy

Graphene oxide (GO) nanosheets can be functionalized with reactive pentafluorophenyl ester via esterification of the carboxylic groups. The resulting reactive GO nanosheets provide a versatile platform for grafting of amino‐containing polymers or biomolecules via ester–amine coupling. Coupling of poly[(9,9‐dioctylfluorene)‐ alt ‐(4‐amino‐phenylcarbazole)] (PFCz‐NH 2 ), amino‐terminated hyperbranched polyglycerol (HPG‐NH 2 ), and lysozyme (Lyz) was illustrated. The Al/GO‐ g ‐PFCz/ITO sandwich thin‐film device exhibits bistable electrical switching and rewritable memory effects. The GO‐ g ‐Lyz nanohybrids exhibit high bactericidal efficacy against S. aureus and E. coli , while the GO‐ g ‐HPG nanohybrids exhibit reduced cytotoxicity toward 3T3 fibroblasts.

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