High-density gold nanoparticles on multi-walled carbon nanotube films: a sensitive electrochemical nonenzymatic platform of glucose

Microwave-assisted synthesis of ZnO/MWCNT hybrid nanocomposites and their alcohol-sensing properties

“…[4] To further improve their properties, one of the most effective techniques can be obtained by modifying the functionalisation of the surface of the CNTs with inorganic and metallic low-dimensional materials attached to the surface of CNTs in the form of hybrid composite. Recently, it has been reported that the CNTs properties can be strongly influenced by surface modification and decoration with nanoparticles [5,6] and metal oxide nanostructures. [7,8] As one of the earliest discovered metal oxides, ZnO has been recognised as a widely applied gas-sensing material because of its high mobility of conduction electrons, and good chemical and thermal stability.…”

One pot synthesis of poly(5-hydroxyl-1,4-naphthoquinone) stabilized gold nanoparticles using the monomer as the reducing agent for nonenzymatic electrochemical detection of glucose

“…In contrast, no oxidation process was detected at a bare GCE confirming that Au is the active component of the catalyst. Based on previous reports, process 1 is assigned to the two-electron oxidation of glucose to form gluconolactone [34,35] and process 2 is derived from further oxidation of gluconolactone [12,21,36]. The origin of process 2 was confirmed by cyclic voltammetric measurements with 5 mM D-(+)-gluconic acid d-lactone, which gave rise to a similar process at the potential of process 2 (see Fig.…”

“…Likely interferences from co-existing species in blood were therefore investigated. Blood and urine are the main biological fluids used in the determination of glucose in humans [13,21,44]. These matrices contain not only glucose but also ascorbic acid (AA), uric acid (UA) and metabolites of drugs consumed by humans.…”

“…Au NPs electrodeposited on amine functionalized mesoporous silica, has been reported to give a sensitivity of 75 mA cm À2 mM À1 and LOD of 100 mM for glucose detection in alkaline medium [12]. Au NPs decorated on multiwalled carbon nanotubes functionalized with congo red composites was reported by Zhou et al to give a low detection limit of 0.5 mM glucose in basic medium [21]. Feng et al synthesized Au NPs modified with chitosan which was exploited in the application of glucose sensor with a LOD of 0.37 mM [22].…”

Electrochemical Oxidation and Determination of Glucose Using Cyclic Voltammetry and a One‐step Prepared Nanoporous Gold Wire Electrode

“…Special urchin-like AuNPs were prepared by chemical reduction 11 and electrodeposition was also frequently used for the formation of AuNPs for glucose detection. 12 Bimetallic NPs of Au have also been used. 13,14 Compared with AuNPs, NPG has a 3-dimentional nanostructure, indicating a higher surface-tovolume ratio.…”