Fabrication of refreshable aptasensor based on hydrophobic screen-printed carbon electrode interface

Fu, Jianlin; Dong, Haowei; Zhao, Qingxue; Cheng, Songbai; Guo, Yemin

doi:10.1016/j.scitotenv.2019.136410

Cited by 19 publications

(8 citation statements)

References 28 publications

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“…Polydimethylsiloxane was used to avoid the adsorption of molecules on the surface of the working electrode. It was concluded that the aptasensor could be used twice without signal loss and effect of interferences [ 147 ].…”

Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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Electrochemical sensors play a significant role in detecting chemical ions, molecules, and pathogens in water and other applications. These sensors are sensitive, portable, fast, inexpensive, and suitable for online and in-situ measurements compared to other methods. They can provide the detection for any compound that can undergo certain transformations within a potential window. It enables applications in multiple ion detection, mainly since these sensors are primarily non-specific. In this paper, we provide a survey of electrochemical sensors for the detection of water contaminants, i.e., pesticides, nitrate, nitrite, phosphorus, water hardeners, disinfectant, and other emergent contaminants (phenol, estrogen, gallic acid etc.). We focus on the influence of surface modification of the working electrodes by carbon nanomaterials, metallic nanostructures, imprinted polymers and evaluate the corresponding sensing performance. Especially for pesticides, which are challenging and need special care, we highlight biosensors, such as enzymatic sensors, immunobiosensor, aptasensors, and biomimetic sensors. We discuss the sensors’ overall performance, especially concerning real-sample performance and the capability for actual field application.

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Section: Electrochemical Sensor For Water Contaminantsmentioning

confidence: 99%

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Kanoun

Lazarević‐Pašti

Pašti

et al. 2021

Sensors

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“…However, humans and livestock were posed life-threatening risks by OPs because OPs would inhibit the catalytic activity of acetylcholinesterase (AChE), causing acetylcholine (ATCl) to accumulate in the body without hydrolysis in time, causing damage to the nervous system. In view of these, it is necessary to detect the residual of OPs in food [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Acetylcholinesterase electrochemical biosensors with graphene-transition metal carbides nanocomposites modified for detection of organophosphate pesticides

Wang

et al. 2020

PLoS ONE

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An acetylcholinesterase biosensor modified with graphene and transition metal carbides was prepared to detect organophosphorus pesticides. Cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy were used to characterize the electrochemical catalysis of the biosensor: acetylcholinesterase/chitosan-transition metal carbides/graphene/glassy carbon electrode. With the joint modification of graphene and transition metal carbides, the biosensor has a good performance in detecting dichlorvos with a linear relationship from 11.31 μM to 22.6 nM and the limit of detection was 14.45 nM. Under the premise of parameter optimization, the biosensor showed a good catalytic performance for acetylcholine. Compared to the biosensors without modification, it expressed a better catalytic performance due to the excellent electrical properties, biocompatibility and high specific surface area of graphene, transition metal carbides. Finally, the biosensor exhibits good stability, which can be stored at room temperature for one month without significant performance degradation, and has practical potential for sample testing.

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“…Silica is one of the best coating materials for Fe 3 O 4 magnetic nanoparticles (MNPs), because it owns characteristics of easy surface modification, high chemical stability, and environmental compatibility. 17,22 Currently, aptamer-Fe 3 O 4 -based composite adsorption materials are gradually applied to various samples pretreatments, such as metal elements, 23 bacteria, 21,24 pesticides, 25 veterinary drug, 26 toxins, 27 nucleotides, 28 and other samples. Recently, the extraction method of AFB 1 from dairy products and edible vegetable oils, 29–31 such as SPE and MSPE, have been extensively studied in a fast, simple, inexpensive and safe method.…”

Section: Introductionmentioning

confidence: 99%

Determination of aflatoxin B1 in Pixian Douban based on aptamer magnetic solid-phase extraction

Zeng

Tian

et al. 2022

RSC Adv.

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Fabrication of refreshable aptasensor based on hydrophobic screen-printed carbon electrode interface

Cited by 19 publications

References 28 publications

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

A Review of Nanocomposite-Modified Electrochemical Sensors for Water Quality Monitoring

Acetylcholinesterase electrochemical biosensors with graphene-transition metal carbides nanocomposites modified for detection of organophosphate pesticides

Determination of aflatoxin B1 in Pixian Douban based on aptamer magnetic solid-phase extraction

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