Graphene–Metal Oxide Nanocomposite Modified Electrochemical Sensors

Immanuel, Susan; Aparna, T.K.; Sivasubramanian, R.

doi:10.1016/b978-0-12-815394-9.00005-4

Cited by 24 publications

(9 citation statements)

References 135 publications

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“…The characterization and experimentation of these prototypes have shown that a diversified range of sensors can be considered to detect glucose over a wide range of concentrations. The working mechanism of some of the prototypes is based on effects like the quantum confinement effect [151], which helped to enhance the electrochemical properties of the LIG-based devices. As an example, [152] shows the use of unfunctionalized LIG-based sensors for the detection of glucose molecules.…”

Section: Other Forms Of Lig-based Glucose Sensorsmentioning

confidence: 99%

Electrochemical Detection of Glucose Molecules Using Laser-Induced Graphene Sensors: A Review

Gao

Nag

2021

Sensors

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This paper deals with recent progress in the use of laser-induced graphene sensors for the electrochemical detection of glucose molecules. The exponential increase in the exploitation of the laser induction technique to generate porous graphene from polymeric and other naturally occurring materials has provided a podium for researchers to fabricate flexible sensors with high dynamicity. These sensors have been employed largely for electrochemical applications due to their distinct advantages like high customization in their structural dimensions, enhanced characteristics and easy roll-to-roll production. These laser-induced graphene (LIG)-based sensors have been employed for a wide range of sensorial applications, including detection of ions at varying concentrations. Among the many pivotal electrochemical uses in the biomedical sector, the use of these prototypes to monitor the concentration of glucose molecules is constantly increasing due to the essentiality of the presence of these molecules at specific concentrations in the human body. This paper shows a categorical classification of the various uses of these sensors based on the type of materials involved in the fabrication of sensors. The first category constitutes examples where the electrodes have been functionalized with various forms of copper and other types of metallic nanomaterials. The second category includes other miscellaneous forms where the use of both pure and composite forms of LIG-based sensors has been shown. Finally, the paper concludes with some of the possible measures that can be taken to enhance the use of this technique to generate optimized sensing prototypes for a wider range of applications.

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Section: Other Forms Of Lig-based Glucose Sensorsmentioning

confidence: 99%

Electrochemical Detection of Glucose Molecules Using Laser-Induced Graphene Sensors: A Review

Gao

Nag

2021

Sensors

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“…Metal oxide nanoparticles (MONPs) formed from their metal salts are significant in the field of physics, chemistry and materials science [65]. MONPs possess structural forms with an electronic structure that is capable of revealing semiconductor, metallic and insulator properties.…”

Section: Application Of Metal Oxide Nanoparticles For Electrocatalytic Detection Of Cholinementioning

confidence: 99%

Enhanced Electrocatalytic Detection of Choline Based on CNTs and Metal Oxide Nanomaterials

Uwaya

Fayemi

2021

Molecules

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Choline is an officially established essential nutrient and precursor of the neurotransmitter acetylcholine. It is employed as a cholinergic activity marker in the early diagnosis of brain disorders such as Alzheimer’s and Parkinson’s disease. Low levels of choline in diets and biological fluids, such as blood plasma, urine, cerebrospinal and amniotic fluid, could be an indication of neurological disorder, fatty liver disease, neural tube defects and hemorrhagic kidney necrosis. Meanwhile, it is known that choline metabolism involves oxidation, which frees its methyl groups for entrance into single-C metabolism occurring in three phases: choline oxidase, betaine synthesis and transfer of methyl groups to homocysteine. Electrocatalytic detection of choline is of physiological and pathological significance because choline is involved in the physiological processes in the mammalian central and peripheral nervous systems and thus requires a more reliable assay for its determination in biological, food and pharmaceutical samples. Despite the use of several methods for choline determination, the superior sensitivity, high selectivity and fast analysis response time of bioanalytical-based sensors invariably have a comparative advantage over conventional analytical techniques. This review focuses on the electrocatalytic activity of nanomaterials, specifically carbon nanotubes (CNTs), CNT nanocomposites and metal/metal oxide-modified electrodes, towards choline detection using electrochemical sensors (enzyme and non-enzyme based), and various electrochemical techniques. From the survey, the electrochemical performance of the choline sensors investigated, in terms of sensitivity, selectivity and stability, is ascribed to the presence of these nanomaterials.

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“…The latter include metal oxide nanoparticles, which have unique chemical, optical, and electrical properties when compared with bulk materials [ 6 ]. Several metal oxide nanoparticles, such as ZnO, MnO 2 , Fe 3 O 4 , TiO 2 , Al 2 O 3 , and SiO 2 , have been studied to detect different molecules [ 7 ]. Specifically, in this study, magnetite (Fe 3 O 4 ) and silicon dioxide or silica (SiO 2 ) nanoparticles were used for their surface functionalization.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Functionalized Bionanocompounds with Ice Nucleation Protein for Freezing Applications

Fuentes

Osma

2023

Polymers

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The objective of this study was to assess the effectiveness of functionalized bionanocompounds with ice nucleation protein (INP) as a novel approach for freezing applications in terms of how much energy is used during each step of freezing when water bionanocompound solutions were compared with pure water. According to the results of the manufacturing analysis, water required 28 times less energy than the silica + INA bionanocompound and 14 times less than the magnetite + INA bionanocompound. These findings showed that water used the least energy during the manufacturing process. In order to determine the associated environmental implications, an analysis of the operating stage was also conducted, taking the defrosting time of each bionanocompound during a 4 h work cycle into account. Our results showed that bionanocompounds may substantially reduce the environmental effects by achieving a 91% reduction in the impact after their use during all four work cycles in the operation stage. Additionally, given the energy and raw materials needed in this process, this improvement was more significant than at the manufacturing stage. The results from both stages indicated that, when compared with water, the magnetite + INA bionanocompound and the silica + INA bionanocompound would save an estimated 7% and 47% of total energy, respectively. The study’s findings also demonstrated the great potential for using bionanocompounds in freezing applications to reduce the effects on the environment and human health.

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Graphene–Metal Oxide Nanocomposite Modified Electrochemical Sensors

Cited by 24 publications

References 135 publications

Electrochemical Detection of Glucose Molecules Using Laser-Induced Graphene Sensors: A Review

Electrochemical Detection of Glucose Molecules Using Laser-Induced Graphene Sensors: A Review

Enhanced Electrocatalytic Detection of Choline Based on CNTs and Metal Oxide Nanomaterials

Life Cycle Assessment of Functionalized Bionanocompounds with Ice Nucleation Protein for Freezing Applications

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