Preparation of highly sensitive electrochemical sensor for detection of nitrite in drinking water samples

Shi, Haobing; Fu, Li; Chen, Fei; Zhao, Shichao; Lai, Guosong

doi:10.1016/j.envres.2022.112747

Cited by 54 publications

(19 citation statements)

References 39 publications

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“…This study achieved a widespread linear dynamic range of 0.01 to 1.00 mM and a remarkably low detection limit of 11.55 nM. Recently, Shi and co‐workers [192] reported a method in which AuNPs were synthesized following a biological method using Lycorisradiata and placed on GCE. That further helped in determining trace amounts of nitrite only from drinking water.…”

Section: Electrochemical Detection Of Nitrite Based On Au Nanomaterialsmentioning

confidence: 90%

Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection

Saha

Akter

Shah

et al. 2022

Chemistry An Asian Journal

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Nitrite is one of the abundant toxic components existing in the environment and is likely to have a great potential to affect human health badly. For that reason, it has become crucial to build a reliable nitrite detection method. In recent years, several nitrite monitoring systems have been proposed. Compared with traditional analytical strategies, the electrochemical approach has a bunch of advantages, including low cost, rapid response, easy operation, simplicity, etc. In this case, noble metal nanomaterials, especially Au‐based nanomaterials, have attracted attention in electrode modification because of higher catalytic activity, facile mass transfer, and broad active area for determining nitrite. This review is based on the state‐of‐the‐art, which includes a variety of nanomaterials that have been coupled with gold nanoparticles (AuNPs) for the creation of nanocomposites, and the construction as well as development of electrochemical sensors for nitrite detection over the last few years (2016‐2022). A background study on synthesizing different morphological AuNPs and nanocomposites has also been introduced. The fabrication methods and sensing capabilities of modified electrodes are given special consideration.

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Section: Electrochemical Detection Of Nitrite Based On Au Nanomaterialsmentioning

confidence: 90%

Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection

Saha

Akter

Shah

et al. 2022

Chemistry An Asian Journal

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“…In order to further improve the performance of electrochemical sensors, nanomaterials have been used in the preparation of electrodes. Compared with the traditional electrode, the electrode modified by nanomaterials often presents a wider linear detection range and a lower detection limit [13,[33][34][35][36][37]. Therefore, this topic began to expand to materials science and nanoscience and nanotechnology in 2015.…”

Section: Journals Cited Journals and Research Subjectsmentioning

confidence: 99%

“…To further improve the sensitivity of electrochemical sensors, the electrode surface is often modified to enhance the electrical signal. Chemical modification of electrodes refers to the attachment of chemical groups or substances with special functions to the electrode surface by covalent bonding, adsorption, or polymer coating in order to achieve a desired effect [11][12][13][14][15]. Considerable attention has been focused on modification materials and methods to achieve the artificial control of the electrode surface through the use of modification materials, which can effectively increase the specific surface area of electrodes, increase the fixed amount of probes, and improve the efficiency of electron transmission, and thus optimize the detection results.…”

Section: Introductionmentioning

confidence: 99%

Advances in Electrochemical Techniques for the Detection and Analysis of Genetically Modified Organisms: An Analysis Based on Bibliometrics

Zheng

Karimi-Maleh

2022

Chemosensors

Self Cite

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Since the first successful transgenic plants obtained in 1983, dozens of plants have been tested. On the one hand, genetically modified plants solve the problems of agricultural production. However, due to exogenous genes of transgenic plants, such as its seeds or pollen drift, diffusion between populations will likely lead to superweeds or affect the original traits. The detection technology of transgenic plants and their products have received considerable attention. Electrochemical sensing technology is a fast, low-cost, and portable analysis technology. This review interprets the application of electrochemical technology in the analysis and detection of transgenic products through bibliometrics. A total of 83 research articles were analyzed, spanning 2001 to 2021. We described the different stages in the development history of the subject and the contributions of countries and institutions to the topic. Although there were more annual publications in some years, there was no explosive growth in any period. The lack of breakthroughs in this technology is a significant factor in the lack of experts from other fields cross-examining the subject. Through keyword co-occurrence analysis, different research directions on this topic were discussed. The use of nanomaterials with excellent electrical conductivity allows for more sensitive detection of GM crops by electrochemical sensors. Furthermore, co-citation analysis was used to interpret the most popular reports on the topic. In the end, we predict the future development of this topic according to the analysis results.

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“…POCT devices are often equipped with biosensors. A biosensor refers to an analytical device for detecting analytes, usually through a small analytical system in which the biological components are xed to a solid surface and interact with the analyte [16][17][18]. Electrochemical or optical methods can detect these interactions.…”

Section: Introductionmentioning

confidence: 99%

An Electrochemical-Based Point-of-Care Testing Methodology for Uric Acid Measurement

Zhao

Song

2022

Journal of Analytical Methods in Chemistry

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Point-of-care technology (POCT) is an important method in clinical testing in the future, which can achieve the purpose of rapid analysis. In this work, we assembled an electrochemical POC sensor for uric acid (UA) by surface modification of a screen-printed electrode. Copper nanowires were used as electrode modifiers to achieve high-performance electrochemical oxidation of UA. This electrochemical sensor can achieve linear detection of UA in the range of 10 μM to 2 mM. The detection limit of the sensor was calculated to be 2 μM. Although the detection performance of this sensor is not competitive with high-performance electrochemical sensors, it has been able to meet the needs of POC detection. At the same time, the sensor has excellent anti-interference performance. It has also been used successfully to test urine and serum samples from healthy and gout patients.

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Preparation of highly sensitive electrochemical sensor for detection of nitrite in drinking water samples

Cited by 54 publications

References 39 publications

Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection

Gold Nanomaterials and their Composites as Electrochemical Sensing Platforms for Nitrite Detection

Advances in Electrochemical Techniques for the Detection and Analysis of Genetically Modified Organisms: An Analysis Based on Bibliometrics

An Electrochemical-Based Point-of-Care Testing Methodology for Uric Acid Measurement

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