Electrochemical detection of nitrite at NiFe2O4 nanoparticles synthesised by solvent deficient method

Nithyayini, K.N.; Kotresh, Harish Makri Nimbegondi; Nagashree, K. L.

doi:10.1016/j.electacta.2019.06.026

Cited by 62 publications

(32 citation statements)

References 43 publications

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“…The nitrite diffusion coefficients for the FCVE and TrX100/FCVE were calculated using the Cottrell Equation (1) based on a chronoamperogram recorded at E = 1.1 V in BRB (pH 3) containing 0.02 mM NO 2 − and the corresponding dependence I = f (t −1/2 ) (Figure 10). The value of the nitrite diffusion coefficient for the TrX100/FCVE was found as 2.24 × 10 −5 cm 2 s −1 , which accords with the same order of magnitude given at modified carbon paste electrode in other studies [11,49]. For the FCVE the value of D was found 1.52 × 10 −7 cm 2 s −1 .…”

Section: Effect Of Potential Scan Ratesupporting

confidence: 88%

“…Thus, exploiting effective means for nitrite detection in food products, biological fluids and water is essential for human health and environmental protection. Hence, different physical-chemical methods for nitrite detection have been proposed, such as chromatography [1,6], titration [7,8] spectrophotometry [9,10] and electrochemistry [11,12]. Along with obvious advantages they have some shortcomings.…”

Section: Introductionmentioning

confidence: 99%

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Film Carbon Veil-Based Electrode Modified with Triton X-100 for Nitrite Determination

et al. 2020

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A film carbon veil-based electrode (FCVE) modified with non-ionic surfactant Triton X-100 (TrX100) has been developed for nitrite determination. A new simple and producible technique of hot lamination (heat sealing) has been used for the FCVE manufacturing. The paper presents the findings of investigating the FCVE and the TrX100/FCVE by using voltammetry, chronoamperometry, and scanning electron microscopy. Modification of the electrode with TrX100 improves the hydrophilic property of its surface, which results in a larger electrode active area and higher sensitivity. Optimal conditions for nitrite determination with the use of the TrX100/FCVE have been identified. The linear range (LR) and the limit of detection (LOD) are 0.1–100 μM and 0.01 μM, respectively. The relative standard deviation (RSD) does not exceed 2.3%. High selectivity of the sensor ensures its successful application for the analysis of real samples (sausage products and natural water). The obtained results accord well with the results of the standard spectrophotometric method.

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Section: Effect Of Potential Scan Ratesupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Film Carbon Veil-Based Electrode Modified with Triton X-100 for Nitrite Determination

et al. 2020

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“…The band stands for the conformational deformation of the glycoside 4 C 1 ring in cellulose and the glycosidic bond between the glucuronic acid ring [ 37 ]. In addition, the bands located at 563 cm −1 and 416 cm −1 (10,11) were assigned to the stretching vibration of the metal oxide bond (Fe-O, Ni-O) at the tetrahedral/octahedral position of the ferrite structure as shown in Figure 6 e [ 38 ], indicating the successfully immobilization of NiFe 2 O 4 nanoparticles on the surface of cellulose fibers and diffusion of these nanoparticles into the porous regions among cellulose fiber networks. A summary of infrared band signals associated with bond vibrations within cellulose and metal oxide is highlighted in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

A Novel NiFe2O4/Paper-Based Magnetoelastic Biosensor to Detect Human Serum Albumin

Guo

Liu

et al. 2020

Sensors

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For the first time, a novel NiFe2O4/paper-based magnetoelastic (ME) biosensor was developed for rapid, sensitive, and portable detection of human serum albumin (HSA). Due to the uniquely magnetoelastic effect of NiFe2O4 nanoparticles and the excellent mechanical properties of the paper, the paper-based ME biosensor transforms the surface stress signal induced by the specific binding of HSA and antibody modified on the paper into the electromagnetic signal. The accumulated binding complex generates a compressive stress on the biosensor surface, resulting in a decrease in the biosensor’s static magnetic permeability, which correlates to the HSA concentrations. To improve the sensitivity of the biosensor, the concentration of NiFe2O4 nanofluid and the impregnated numbers of the NiFe2O4 nanofluid-impregnated papers were optimized. The experimental results demonstrated that the biosensor exhibited a linear response to HSA concentrations ranging from 10 μg∙mL−1 to 200 μg∙mL−1, with a detection limit of 0.43 μg∙mL−1, which is significantly lower than the minimal diagnosis limit of microalbuminuria. The NiFe2O4/paper-based ME biosensor is easy to fabricate, and allows the rapid, highly-sensitive, and selective detection of HSA, providing a valuable analytical device for early monitoring and clinical diagnosis of microalbuminuria and nephropathy. This study shows the successful integration of the paper-based biosensor and the ME sensing analytical method will be a highly-sensitive, easy-to-use, disposable, and portable alternative for point-of-care monitoring.

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“…However, electrochemistry is a good alternative because of its rapidness and the possibility to control the nanoparticles size [98]. Many papers have been devoted to metallic nanoparticles and metal oxides as modifier agents for nitrite sensors [40, 99–101]. However, a major disadvantage of these nanoparticles lies in the fact that they could aggregate because of their nanoscale size and large surface energy, which could reduce their efficiency.…”

Section: Hybrid Materials Based On Polymers and Metallic Nanoparticles For Nitrite Detectionmentioning

confidence: 99%

“…Therefore, nanomaterials, especially carbon nanomaterials (CNMs) and metallic nanoparticles (MNPs) are widely used to develop electrochemical sensors [32–39]. They also have shown excellent results for the detection of nitrite [25, 40–42].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Materials Based on Conducting Polymers for Nitrite Sensing: A Mini Review

Salhi¹,

Ez-zine²,

Rhazi³

2021

Electroanalysis

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Well‐known as a hazardous compound, nitrite constitute a real threat to the public health. So, there is a pressing need to detect and quantify them in different matrix. Even though conventional analytical methods can be used to address this issue, electrochemistry allows a fast, sensitive, and efficient analysis. Conducting polymers continue to raise great interest among scientific communities due to their properties. Moreover, their combination with carbon nanomaterials, or metallic nanoparticles improves their properties, and provides great results. In this paper, we will focus on some revealing works devoted to the electrochemical detection of nitrite using this kind of materials.

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Electrochemical detection of nitrite at NiFe2O4 nanoparticles synthesised by solvent deficient method

Cited by 62 publications

References 43 publications

Film Carbon Veil-Based Electrode Modified with Triton X-100 for Nitrite Determination

Film Carbon Veil-Based Electrode Modified with Triton X-100 for Nitrite Determination

A Novel NiFe2O4/Paper-Based Magnetoelastic Biosensor to Detect Human Serum Albumin

Hybrid Materials Based on Conducting Polymers for Nitrite Sensing: A Mini Review

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