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Communication

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

  1. Li Qun Xu1,
  2. Bin Zhang2,
  3. Yu Chen2,*,
  4. Koon-Gee Neoh1,
  5. En-Tang Kang1,*,
  6. Guo Dong Fu3

Article first published online: 22 NOV 2012

DOI: 10.1002/marc.201200635

Issue

Macromolecular Rapid Communications

Macromolecular Rapid Communications

Volume 34, Issue 3, pages 234–238, February 12, 2013

Additional Information

How to Cite

Xu, L. Q., Zhang, B., Chen, Y., Neoh, K.-G., Kang, E.-T. and Fu, G. D. (2013), Reactive Graphene Oxide Nanosheets: A Versatile Platform for the Fabrication of Graphene Oxide–Biomolecule/Polymer Nanohybrids. Macromol. Rapid Commun., 34: 234–238. doi: 10.1002/marc.201200635

Author Information

  1. 1

    Department of Chemical & Biomolecular Engineering, National University of Singapore, 119260, Singapore

  2. 2

    Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China

  3. 3

    School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu Province, 211189, P. R. China

*Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China.

Publication History

  1. Issue published online: 5 FEB 2013
  2. Article first published online: 22 NOV 2012
  3. Manuscript Revised: 25 OCT 2012
  4. Manuscript Received: 21 SEP 2012

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Keywords:

  • biocompatibility;
  • electrical switching;
  • graphene oxide;
  • nanocomposites;
  • reactive pentafluorophenyl ester

Abstract

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-NH2), amino-terminated hyperbranched polyglycerol (HPG-NH2), 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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