Highly sensitive electrocatalytic detection of nitrite based on SiC nanoparticles/amine terminated ionic liquid modified glassy carbon electrode integrated with flow injection analysis

Salimi, Abdollah; Kurd, Masoumeh; Teymourian, Hazhir; Hallaj, Rahman

doi:10.1016/j.snb.2014.08.035

Cited by 45 publications

(11 citation statements)

References 56 publications

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“…Owing to its potential toxicity, detection of the

{N O}_{2}^{-}

is important for public health, industrial and environmental fields. Therefore, it is necessary to develop a reliable and sensitive sensor to detect the

{N O}_{2}^{-}

in food, waste water and environmental samples …”

Section: Introductionmentioning

confidence: 99%

Enhanced Detection of Nitrite Ions Over Copper Acetylacetonate/Polymeric Carbon Nitride Composites

Jasman

Lintang

Yuliati

2017

Macromolecular Symposia

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Summary Nitrogen containing compounds such as nitrite ions (NO2−) may cause contaminations to the environment, food and drinking water, and they have a negative effect on human health. In this study, a novel fluorescence sensor was developed by modification of polymeric carbon nitride (CN) with copper(II) acetylacetonate (Cu(acac)2). The polymeric CN was prepared by using urea as a precursor via thermal polymerization technique, while the Cu(acac)2 was introduced onto the polymeric CN via an impregnation method. The formation of polymeric CN can be confirmed from the Fourier transform infrared (FTIR) and the diffuse reflectance ultraviolet visible (DR UV‐Vis) spectroscopies. The polymeric CN exhibited three excitation peaks at 277, 315, and 370 nm owing to the presence of CN, CO, and CN groups, respectively, while there was only one emission peak observed at 455 nm. The emission intensity was decreased with the increase of Cu(acac)2 loading, suggesting certain interactions between the polymeric CN and the added Cu(acac)2. The performances of the polymeric CN and Cu(acac)2/CN composites as fluorescence sensors were evaluated for NO2− detection with concentration range of 0.5‐4 μM. It was revealed that the CN sites in the polymeric CN were the most favored quenching sites for the NO2−. With the addition of Cu(acac)2 (0.1 mol%), the quenching rate for CN sites was enhanced two times higher than that of the polymeric CN. This study demonstrated that the composite is a promising fluorescence sensor for the detection of NO2−.

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“…Owing to its potential toxicity, detection of the

{N O}_{2}^{-}

is important for public health, industrial and environmental fields. Therefore, it is necessary to develop a reliable and sensitive sensor to detect the

{N O}_{2}^{-}

in food, waste water and environmental samples …”

Section: Introductionmentioning

confidence: 99%

Enhanced Detection of Nitrite Ions Over Copper Acetylacetonate/Polymeric Carbon Nitride Composites

Jasman

Lintang

Yuliati

2017

Macromolecular Symposia

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“…The first biosensing applications of aptamers were introduced in 1996 where optical biosensors based on fluorescently labeled aptamers were developed [11]. However, the integration of aptamer characteristics with those of electrochemical systems [12] that include enhanced sensitivity [13] and selectivity [14][15][16], reconcilable with unique microfabrication techniques [17,18] and capable of integrating nanomaterials [19][20][21][22][23][24][25], inherent miniaturization [26], low cost, disposability [27], low power requirements [28,29], independence of sample turbidity, and point-of-care applications [30][31][32] have made electrochemical aptasensors [33][34][35][36] a terrific candidate for many sensing applications. For the first time in 2004 [37], an aptasensor was introduced.…”

Section: Introductionmentioning

confidence: 99%

Application of Electrochemical Aptasensors toward Clinical Diagnostics, Food, and Environmental Monitoring: Review

Mohamed

Mohan

et al. 2019

Sensors

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Aptamers are synthetic bio-receptors of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) origin selected by the systematic evolution of ligands (SELEX) process that bind a broad range of target analytes with high affinity and specificity. So far, electrochemical biosensors have come up as a simple and sensitive method to utilize aptamers as a bio-recognition element. Numerous aptamer based sensors have been developed for clinical diagnostics, food, and environmental monitoring and several other applications are under development. Aptasensors are capable of extending the limits of current analytical techniques in clinical diagnostics, food, and environmental sample analysis. However, the potential applications of aptamer based electrochemical biosensors are unlimited; current applications are observed in the areas of food toxins, clinical biomarkers, and pesticide detection. This review attempts to enumerate the most representative examples of research progress in aptamer based electrochemical biosensing principles that have been developed in recent years. Additionally, this account will discuss various current developments on aptamer-based sensors toward heavy metal detection, for various cardiac biomarkers, antibiotics detection, and also on how the aptamers can be deployed to couple with antibody-based assays as a hybrid sensing platform. Aptamers can be used in various applications, however, this account will focus on the recent advancements made toward food, environmental, and clinical diagnostic application. This review paper compares various electrochemical aptamer based sensor detection strategies that have been applied so far and used as a state of the art. As illustrated in the literature, aptamers have been utilized extensively for environmental, cancer biomarker, biomedical application, and antibiotic detection and thus have been extensively discussed in this article.

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“…Salimi et al [29] reported glassy carbon electrode modified with nanometer SiC could detect insulin with the detection limit of 3.3 × 10 −12 mol L −1 . Salimi et al [30] further fabricated SiC nanoparticles/amine terminated ionic liquid modified glassy carbon electrode, which exhibited linear relationship between amperometric current response and nitrite concentration in the range from 50 nM to 350 μM with the detection limit of 20 nM. Oliveros A. et al [31] pointed out that SiC can be a versatile material for biosensor applications because of its unique electrical and thermal properties.…”

Section: Introductionmentioning

confidence: 99%

Single crystalline 3C-SiC whiskers used for electrochemical detection of nitrite under neutral condition

Zhi

Yang

et al. 2016

Ionics

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A new kind of nitrite sensor based on 3C-SiC whisker electrode was fabricated to electrochemically determine nitrite. Powder X-ray diffraction, field emission scanning electron microscope, and transmission electron microscopy reveal SiC whiskers are cubic single crystalline with some microtwins. The prepared SiC whisker electrode is examined for the electrochemical detection of nitrite under neutral condition using cyclic voltammetry and differential pulse voltammetry techniques. The results demonstrate that SiC whisker electrode fast responses toward nitrite with a detection limit of 3.5 × 10 −6 mol L −1 , which is comparable to the values reported in the recent literatures. The synthesized electrode is also successfully applied to determine nitrite in tap water.

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Highly sensitive electrocatalytic detection of nitrite based on SiC nanoparticles/amine terminated ionic liquid modified glassy carbon electrode integrated with flow injection analysis

Cited by 45 publications

References 56 publications

Enhanced Detection of Nitrite Ions Over Copper Acetylacetonate/Polymeric Carbon Nitride Composites

Enhanced Detection of Nitrite Ions Over Copper Acetylacetonate/Polymeric Carbon Nitride Composites

Application of Electrochemical Aptasensors toward Clinical Diagnostics, Food, and Environmental Monitoring: Review

Single crystalline 3C-SiC whiskers used for electrochemical detection of nitrite under neutral condition

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