A sensitive, fast, selective, and reusable enzyme-free glucose sensor based on monodisperse AuNi alloy nanoparticles on activated carbon support

Arıkan, Kubilay; Burhan, Hakan; Şahi̇n, Elif; Şen, Fatih

doi:10.1016/j.chemosphere.2021.132718

Cited by 23 publications

(12 citation statements)

References 40 publications

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“…As previously reported, the peaks confirm the presence of the elements Au and Ni: 38.7° Au (111), 43.7° Au(200)-Ni(111)/AC(100)(101), 50.8° Ni(200), 64.9° Au(220), 74.4° Au(311)-Ni(220), 90.2° Ni(311), and 95.4° Au(400)-Ni(222). Furthermore, the shift in the peaks indicates that the Au-Ni/AC alloy was present on the sensor surface [ 59 , 60 ]. Furthermore, the average crystallite diameter ( d ) values that were calculated using Scherrer’s equation [Equation (1)] are ∼41.8 nm for the Au-Ni/AC nanoparticles using the full width at half maximum (FWHM) of the most intense peak at 43.7°.…”

Section: Resultsmentioning

confidence: 99%

“…The XRD patterns of the Au-Ni/AC nanoparticles are presented in Figure 14, which show that there were characteristic diffraction peaks at 2θ 222). Furthermore, the shift in the peaks indicates that the Au-Ni/AC alloy was present on the sensor surface [59,60]. Furthermore, the average crystallite diameter (d) values that were calculated using Scherrer's equation [Equation (1)] are ∼41.8 nm for the Au-Ni/AC nanoparticles using the full width at half maximum (FWHM) of the most intense peak at 43.7°.…”

Section: Nanoparticles Characterisationmentioning

confidence: 99%

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Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

et al. 2022

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The yellow rust of wheat (caused by Puccinia striiformis f. sp. tritici) is a devastating fungal infection that is responsible for significant wheat yield losses. The main challenge with the detection of this disease is that it can only be visually detected on the leaf surface between 7 and 10 days after infection, and by this point, counter measures such as the use of fungicides are generally less effective. The hypothesis of this study is to develop and use a compact electrochemical-based biosensor for the early detection of P. striiformis, thus enabling fast countermeasures to be taken. The biosensor that was developed consists of three layers. The first layer mimics the wheat leaf surface morphology. The second layer consists of a sucrose/agar mixture that acts as a substrate and contains a wheat-derived terpene volatile organic compound that stimulates the germination and growth of the spores of the yellow rust pathogen P. s. f. sp. tritici. The third layer consists of a nonenzymatic glucose sensor that produces a signal once invertase is produced by P. striiformis, which comes into contact with the second layer, thereby converting sucrose to glucose. The results show the proof that this innovative biosensor can enable the detection of yellow rust spores in 72 h.

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Section: Resultsmentioning

confidence: 99%

Section: Nanoparticles Characterisationmentioning

confidence: 99%

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

et al. 2022

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“…At the same time, nanomaterials; are dopamine, ascorbic acid, uric acid, glucose, toxic substances, etc. It is seen that it is used extensively in biosensor applications by being used in many material determinations [31,32]. At this point, many studies and research are carried out today [33].…”

Section: Introductionmentioning

confidence: 99%

Biosensors: Types, Applications, and Future Advantages

GUNDOGDU>

GAZOGLU

KAHRAMAN>

et al. 2023

Journal of Scientific Reports-A

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With the developing technology and increasing population, nanotechnology has started to be used in all areas of life. The use of biosensors, which have an important place in the field of nanotechnology, is increasing day by day. Biosensors can be defined as biological devices that help us interpret the analyte concentration in a sample by converting it into measurable signals. Advantageously, it has both speed and high precision. There are many types of biosensors used in many fields. These; enzymatic, nucleic acid, electrochemical and optical biosensors. All of them can have different components and uses. Biosensors are used especially in early diagnosis of diseases, environment and agriculture, pharmaceutical industry, defense industry and food industry. For example, biosensors are used in the treatment of oncological diseases using electrochemical impedance spectroscopy, in the determination of pesticides, which is one of the environmental pollutants, in the potentiometric analysis of glutamate, in the detection of chemical warfare agents and toxic substances. In addition, it is expected that the usage areas of biosensors will become widespread in the future, and they will be used more widely in the early diagnosis of diseases. At this point, the use of biosensors has increased worldwide and has attracted the attention of scientists. In this study, classification of biosensors, application areas, characterization, studies on biosensors, technologies developed and applied for the future are mentioned.

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“…[24] Though such metal/metal oxide-based sensors showed high sensitivity, however, glucose sensing is carried out by coating the material on a glassy carbon electrode (GCE) or conducting glass. [25][26][27][28] Such coated metal/metal oxide-based sensors cannot be reused, have a long dead time as well as not suitable for flexible devices, which is a major bottleneck for practical applications.Also, there are few reports on flexible nonenzymatic glucose sensors based on coating the material on carbon cloth as well as nickel form. [29] But it requires tedious film deposition processes by using a binder and it can reduce the sensor performance.…”

Section: Introductionmentioning

confidence: 99%

“…al reported highly sensitive (1907 μA mM −1 cm −2 ) glucose detection for their bilayer of copper wire and carbon nanotube electrode [24] . Though such metal/metal oxide‐based sensors showed high sensitivity, however, glucose sensing is carried out by coating the material on a glassy carbon electrode (GCE) or conducting glass [25–28] . Such coated metal/metal oxide‐based sensors cannot be reused, have a long dead time as well as not suitable for flexible devices, which is a major bottleneck for practical applications.Also, there are few reports on flexible nonenzymatic glucose sensors based on coating the material on carbon cloth as well as nickel form [29] .…”

Section: Introductionmentioning

confidence: 99%

A Highly Porous and Flexible Carbon Nanotube Array Coated with Gold Nanoparticles: Application in Non‐Enzymatic Ultrasensitive Detection and Monitoring of Blood/Saliva Glucose

et al. 2023

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Flexible, reusable, and ultrasensitive glucose sensors are the need of the hour for advanced health monitoring, specifically for economical diabetes management in low-income countries.Here, we demonstrate an ultra-sensitive, and extremely lightweight non-enzymatic glucose sensor based on gold nanoparticles sputtered carbon nanotube aerogel film (Au-CNT), which is flexible, durable, reusable, and portable. The flexible Au-CNT aerogel non-enzymatic glucose sensor showed remarkable sensitivity of 779 μA mM À 1 cm À 2 , a wide linear range of 0.1 mM to 6 mM and a limit of detection (LoD) of 1.47 μM. The sensitivity of our sensor is highest among literature-reported carbon nanomaterials-based flexible glucose sensors for selective detection of glucose in blood serum/saliva samples. The Au-CNT aerogel shows the potential application as practical non-invasive and invasive self-monitoring glucose sensor. Therefore, highly sensitive and paper-thin Au-CNT electrode is a promising candidate for future commercial robust flexible and wearable biosensor applications.

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A sensitive, fast, selective, and reusable enzyme-free glucose sensor based on monodisperse AuNi alloy nanoparticles on activated carbon support

Cited by 23 publications

References 40 publications

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

Biosensors: Types, Applications, and Future Advantages

A Highly Porous and Flexible Carbon Nanotube Array Coated with Gold Nanoparticles: Application in Non‐Enzymatic Ultrasensitive Detection and Monitoring of Blood/Saliva Glucose

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