title: Ionic liquid-functionalized graphene as modifier for electrochemical and electrocatalytic improvement: comparison of different carbon electrodes.
abstract: Electrochemical activities of typically electrochemical targets at three kinds of modified carbon electrodes, i.e. carbon ionic liquid electrode (CILE), graphene/carbon paste electrode (CPE), and ionic liquid-functionalized graphene (IL-graphene)/CPE, were compared in detail. The redox processes of the probes at IL-graphene/CPE were faster than those at CILE and graphene/CPE from cyclic voltammetry. An electrochemical method for the simultaneous determination of guanine and adenine was described with detection limits of 6.5×10(-8) mol L(-1) (guanine) and 3.2×10(-8) mol L(-1) (adenine). Single A→G mutation of sequence-specific DNA could be discriminated by the IL-graphene/CPE.
authors: Shandong Provincial Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
authors: Meng
authors: M
authors: Du
authors: Tao
authors: T
authors: Yang
authors: Suyan
authors: S
authors: Ma
authors: Changzhi
authors: C
authors: Zhao
authors: Kui
authors: K
authors: Jiao
mesh_terms: D000225:Adenine / Q000032:analysis; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D004247:DNA / Q000737:chemistry / Q000235:genetics; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D006147:Guanine / Q000032:analysis; D052578:Ionic Liquids / Q000737:chemistry*; D057230:Limit of Detection; D009154:Mutation; D010084:Oxidation-Reduction
chemical_list: D052578:Ionic Liquids; D006147:Guanine; D002244:Carbon; D006108:Graphite; D004247:DNA; D000225:Adenine