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Cited by 554

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Fabrication, Mechanical Properties, and Biocompatibility of Graphene-Reinforced Chitosan Composites

Fan, Hailong, Wang, Lili, Zhao, Keke, Li, Nan, Shi, Zujin, Ge, Zigang, Jin, Zhaoxia·2010·Biomacromolecules

Abstract

Few-layered graphene sheets, synthesized by direct current arc-discharge method using NH(3) as one of the buffer gases, were dispersed in chitosan/acetic acid solutions. FTIR and X-ray photoelectron spectroscopy showed the presence of oxygen-containing functional groups on the surface of graphene sheets that may assist the good dispersion of graphene in chitosan solution. Graphene/chitosan films were produced by solution casting method. The mechanical properties of composite films were tested by nanoindentation method. With the addition of a small amount of graphene in chitosan (0.1-0.3 wt %), the elastic modulus of chitosan increased over ∼ 200%. The biocompatibility of graphene/chitosan composite films was checked by tetrazolium-based colorimetric assays in vitro. The cell adhesion result showed that the L929 cell can adhere to and develop on the graphene/chitosan composite films as well as on pure chitosan film, indicating that graphene/chitosan composites have good biocompatibility. Because there is no metallic impurity in graphene raw materials, the time-consuming purification process for removing metal nanoparticles entrapped in carbon nanotubes is thus avoided when graphene is used to prepare biomedical materials. Graphene/chitosan composites are potential candidates as scaffold materials in tissue engineering.

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Metadata

Authors
Fan, H., Wang, L., Zhao, K., Li, N., Shi, Z., Ge, Z., & Jin, Z.
Venue
Biomacromolecules
Published
2010-08-05
Volume
11
Issue
9
Pages
2345-2351
ISSN
  • 1525-7797 (ISSN-L)
  • 1526-4602
OpenAlex
W2048474248
Cited by
554
References
48
FWCI
12.94
Type
journal article
Language
en
Open access
closed

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