Nonenzymatic amperometric sensing of glucose by using palladium nanoparticles supported on functional carbon nanotubes

Synthesis of highly dispersed Pt nanoclusters anchored graphene composites and their application for non-enzymatic glucose sensing

“…The tedious immobilization process of enzyme could be another barrier which limits their further applications [6][7][8]. To overcome these issues, many attempts have been devoted to nonenzymatic glucose biosensors based on direct catalytic oxidation of glucose on the surface of electrode, which exhibits conveniences and advantages to avoid these drawbacks [2,4,9].…”

“…Considering the high specific surface area, excellent conductivity and catalytic activity, metal nanomaterials has become the research focus of electrocatalyst for glucose sensing [10,11]. Nowadays, various metal nanomaterials such as platinum (Pt) [6,10,12], gold (Au) [7,13], palladium (Pd) [3,9] and nickel (Ni) [11,14] have been modified on the surface of electrode as eletrooxidation materials in nonenzymatic glucose sensors. Among them, platinum nanomaterial is of great promise for its extraordinary performance in the electro-oxidation of glucose [12,15,16].…”

Ultrasensitive non-enzymatic glucose sensing at near-neutral pH values via anodic stripping voltammetry using a glassy carbon electrode modified with Pt3Pd nanoparticles and reduced graphene oxide

“…The co-existing oxidizable compound such as ascorbic acid, uric acid, fructose or p-acetamidophenol may generate electrochemical signal. Since high active surface area favors faradic currents associated with kinetically controlled sluggish reactions such as the oxidation of glucose to a greater extent than a diffusion controlled reactions as the oxidation of interfering species [28], our previous study revealed that nanostructure electrodes can be applied to conquer the poor selective problem met with in nonenzymatic glucose sensing [29]. In the experiments, glucose produced remarkable ASV signals comparing to the other four interfering species.…”

Disposable amperometric biosensors based on xanthine oxidase immobilized in the Prussian blue modified screen-printed three-electrode system

“…Xa or HX concentration is mostly detected by chromatography [3][4][5], microbiology [6] or spectroscopy [7,8] in laboratory and all the methods need large, complex instruments, skilled people and enough time to obtain analytical results. In order to avoid the disadvantages mentioned above, it is a good choice to develop the simple, sensitive, miniature and portable electrochemical amperometric biosensor [9,10].…”