期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 356, 期 2, 页码 543-549出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2011.01.052
关键词
Graphene oxide; Diimade-activated amidation; Biomaterial; Bioactivity
In this work, a novel and facile method for covalent attachment of biomaterials to graphene oxide sheets (GUS) was developed. Four conjugates were obtained via the diimide-activated amidation reaction under ambient conditions. Final products were characterized by FT-IR spectroscopy, atomic force microscopy and transmission electron microscopy. Electrochemical characterization of the composite showed that the covalently bonded biomaterial retained its bioactivity. This method may provide a way for further preparation of graphene-based biodevices. (C) 2011 Elsevier Inc. All rights reserved.
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