title: Preparation of Highly Dispersed Reduced Graphene Oxide Decorated with Chitosan Oligosaccharide as Electrode Material for Enhancing the Direct Electron Transfer of Escherichia coli.
abstract: Water-dispersed reduced graphene oxide/chitosan oligosaccharide (RGO-CTSO) was prepared by chemical reduction of graphene oxide and synchronous functionalization with biocompatible chitosan oligosaccharide (CTSO). ζ potential measurement indicated that RGO-CTSO was highly stable in the acidic aqueous solution. RGO-CTSO was used to modify glassy carbon electrode (GCE) as the growth template of Escherichia coli (E. coli). The enhanced direct electron transfer of E. coli on the RGO-CTSO-modified GCE was studied by cyclic voltammetry. Compared with GCE or RGO-modified GCE, RGO-CTSO-modified GCE was more suitable for the adhesion growth of E. coli to improve direct electron transfer. The biocompatibility and versatility of RGO-CTSO made it promising for use as an anode material in microbial fuel cells.
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Luo
authors.forename: Dongliang
authors.initials: D
authors.lastname: Yang
authors.forename: Guangqin
authors.initials: G
authors.lastname: Qi
authors.forename: Lihui
authors.initials: L
authors.lastname: Yuwen
authors.forename: Yuqian
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: §College of Geography and Biological Information, Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210046, P. R. China.
authors.forename: Lixing
authors.initials: L
authors.lastname: Weng
authors.forename: Lianhui
authors.initials: L
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
mesh_terms: D048271:Chitosan / Q000737:chemistry*; D055664:Electrochemical Techniques; D004566:Electrodes; D004583:Electrons; D004926:Escherichia coli / Q000378:metabolism*; D005898:Glass / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D053758:Nanoparticles / Q000648:ultrastructure; D009844:Oligosaccharides / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
chemical_list: D009844:Oligosaccharides; D010087:Oxides; D012996:Solutions; D006108:Graphite; D048271:Chitosan
keywords: Escherichia coli; chitosan oligosaccharide; direct electron transfer; reduced graphene oxide