Hydrothermal synthesis of NiWO4 crystals for high performance non-enzymatic glucose biosensors

Manickam, Sivakumar; Veeramani, Vediyappan; Chen, Shen‐Ming; Madhu, Rajesh; Veerakumar, Pitchaimani; Chang, Jia-Yaw; Liu, Shang-Bin

doi:10.1038/srep24128

Cited by 74 publications

(33 citation statements)

References 37 publications

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“…However, they are still in the early stage of research and significant achievements have not been reported yet. This is attributed to rapid recombination of the photoinduced electron-hole pairs and the narrow light response range in the solar spectrum, leading to low photocatalytic activity of the materials [15,16], which significantly hampers their widespread practical use. In particular, nickel tungstate with the formula NiWO 4 has attracted significant attention due to its interesting structural and photoluminescence properties [17,18], where it has been applied to scintillation counters, lasers, optical fibers, and catalysts [19,20].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Activity of Ni1-xLi2xWO4 Particles for Carbon Dioxide Photoreduction

et al. 2019

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This study introduces NiWO4 as a main photocatalyst, where the Ni component promotes methanation to generate a WO3-based catalyst, as a new type of catalyst that promotes the photoreduction of carbon dioxide by slowing the recombination of electrons and holes. The bandgap of NiWO4 is 2.74 eV, which was expected to improve the initial activity for the photoreduction of carbon dioxide. However, fast recombination between the holes and electrons was also expected. To overcome this problem, attempts were made to induce structural defects by partially replacing the Ni2+ ions in NiWO4 with Li+. The resulting CO2 conversion reaction was greatly enhanced with the Ni1-xLi2xWO4 catalysts containing Li+, compared to that of the pure NiWO4 catalysts. Notably, the total amount of CO and CH4 produced with the Ni0.8Li0.4WO4 catalyst was 411.6 nmol g−1. It is believed that the insertion of Li+ ions into the NiWO4 skeleton results in lattice defects due to charge and structural imbalance, which play a role in the capture of CO2 gas or excited electrons, thereby inhibiting recombination between the electrons and holes in the Ni1-xLi2xWO4 particles.

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Section: Introductionmentioning

confidence: 99%

Catalytic Activity of Ni1-xLi2xWO4 Particles for Carbon Dioxide Photoreduction

et al. 2019

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“…After 50 consecutive CV cycles, it was found that the glucose sensor retained ca. 97.2% of its initial oxidation peak potential value [110] S/NPG/Co 3 O 4 hybrid microelectrode 12.5 mA mM −1 cm −2 1 µM-10 mM 5 nM -…”

Section: Non-enzymatic Detection Of Glucose; Direct Glucose Electro Omentioning

confidence: 99%

A Critical Review of Electrochemical Glucose Sensing: Evolution of Biosensor Platforms Based on Advanced Nanosystems

Juska

Pemble

2020

Sensors

135

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The research field of glucose biosensing has shown remarkable growth and development since the first reported enzyme electrode in 1962. Extensive research on various immobilization methods and the improvement of electron transfer efficiency between the enzyme and the electrode have led to the development of various sensing platforms that have been constantly evolving with the invention of advanced nanostructures and their nano-composites. Examples of such nanomaterials or composites include gold nanoparticles, carbon nanotubes, carbon/graphene quantum dots and chitosan hydrogel composites, all of which have been exploited due to their contributions as components of a biosensor either for improving the immobilization process or for their electrocatalytic activity towards glucose. This review aims to summarize the evolution of the biosensing aspect of these glucose sensors in terms of the various generations and recent trends based on the use of applied nanostructures for glucose detection in the presence and absence of the enzyme. We describe the history of these biosensors based on commercialized systems, improvements in the understanding of the surface science for enhanced electron transfer, the various sensing platforms developed in the presence of the nanomaterials and their performances.

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“…Further, semiconductors with low band gap are potential candidates for sensing applications as sensitivity of the electrodes mainly depends on electron-transfer kinetics. For instance, Sivakumar et al has been used hydrothermally synthesized NiWO 4 crystals as electrode modifier for non-enzymatic glucose sensing [22]. In this regard, semiconductor NiWO 4 with narrow band gap of 2.2 eV and nano sized particles can be utilized as an electrode modifier to enhance electron-transfer kinetics and strong adsorption capability towards Hg(II) sensing.…”

Section: Introductionmentioning

confidence: 99%

Nickel tungstate nanoparticles: synthesis, characterization and electrochemical sensing of mercury(II) ions

Eranjaneya

Adarakatti²,

Ashoka

et al. 2019

J Mater Sci: Mater Electron

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Nano particulate metal oxides gained significant research interest in recent years for various applications with the intension of exploring enhanced properties of miniaturization. In this research work, nickel tungstate nanoparticles (NiWO 4 nanoparticles) were successfully synthesized via a simple and efficient sucrose-nitrate decomposition method. The synthesized nanoparticles were characterized using various analytical techniques such as PXRD, SEM, TEM, BET measurements and FTIR. Transmission electron microscope images reveals the nearly spherical shaped nanoparticles of average particle size 15-35 nm. Photoluminescence characteristics of synthesized NiWO 4 nanoparticles were investigated at room temperature. Further, the prepared nanoparticles were utilized as glassy carbon electrode modifier for trace level electrochemical sensing of toxic mercury present in water samples. The electrochemical behavior of mercury(II) ions at modified electrode interface has been studied by cyclic voltammetry (CV) and differential pulse stripping voltammetry (DPSV). The results illustrate that, the proposed modified GCE sensor exhibits linearity between the concentration range 10-600 nM with the limit of detection 2.25 nM based on 3σ method for mercury(II) ions. Hanumantharayappa Eranjaneya and Prashanth Shivappa Adarakatti have contributed equally.

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Hydrothermal synthesis of NiWO4 crystals for high performance non-enzymatic glucose biosensors

Cited by 74 publications

References 37 publications

Catalytic Activity of Ni1-xLi2xWO4 Particles for Carbon Dioxide Photoreduction

Catalytic Activity of Ni1-xLi2xWO4 Particles for Carbon Dioxide Photoreduction

A Critical Review of Electrochemical Glucose Sensing: Evolution of Biosensor Platforms Based on Advanced Nanosystems

Nickel tungstate nanoparticles: synthesis, characterization and electrochemical sensing of mercury(II) ions

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