An electrochemical sensor based on molecularly imprinted membranes on a P-ATP–AuNP modified electrode for the determination of acrylamide

Wang, Qiuyun; Ji, Jian; Jiang, Donglei; Wang, Yao; Zhang, Yinzhi; Sun, Xiulan

doi:10.1039/c4ay01286k

Cited by 18 publications

(11 citation statements)

References 36 publications

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“…Surface characterization plays a significant role in ion selective electrode [48–56] . The current work tends to relate the data obtained from the potentiometric measurements to the surface morphology of membrane sensors.…”

Section: Resultsmentioning

confidence: 99%

Dynamic potential and surface morphology study of sertraline membrane sensors

Khater

Issa

Hassib

et al. 2015

Journal of Advanced Research

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New rapid, sensitive and simple electrometric method was developed to determine sertraline hydrochloride (Ser-Cl) in its pure raw material and pharmaceutical formulations. Membrane sensors based on heteropolyacids as ion associating material were prepared. Silicomolybdic acid (SMA), silicotungstic acid (STA) and phosphomolybdic acid (PMA) were used. The slope and limit of detection are 50.00, 60.00 and 53.24 mV/decade and 2.51, 5.62 and 4.85 μmol L−1 for Ser-ST, Ser-PM and Ser-SM membrane sensors, respectively. Linear range is 0.01–10.00 for the three sensors. These new sensors were used for the potentiometric titration of Ser-Cl using sodium tetraphenylborate as titrant. The surface morphologies of the prepared membranes with and without the modifier (ion-associate) were studied using scanning and atomic force microscopes.

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Section: Resultsmentioning

confidence: 99%

Dynamic potential and surface morphology study of sertraline membrane sensors

Khater

Issa

Hassib

et al. 2015

Journal of Advanced Research

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“…In this way, MIT is used for designing structured polymers particularly with pores or sites with a certain constellation, configuration, and geometry for a specific arrangement of functional groups complementary to the template molecules upon the removal of the latter. To compensate for the plausible slow diffusion of the analyte to the biorecognition element due to imprinted thickness of the membrane, Wang et al demonstrated that by copolymerizing Au NPs (cross-linker) and p -amino thiophenol (conductive polymers) onto a modified GCE along with propanamide as the AA analogue (dummy template molecule), it was possible to achieve a NM biosensor that had high conductivity, large specific surface area, and also good biocompatibility (Figure A) . This biosensor had a relative 150 s for kinetic adsorption of AA onto the molecularly imprinted polymer (MIP), 10 min for washing off the template molecule, highest selectivity for AA in the absence of propanamide, excellent stability, more than 95% recovery, and one of the best LOD values of 0.5 × 10 −12 mol/L.…”

Section: Characteristics Of Nanomaterials Based Bio/chemical Sensors ...mentioning

confidence: 99%

Nanomaterials Enabled and Bio/Chemical Analytical Sensors for Acrylamide Detection in Thermally Processed Foods: Advances and Outlook

Rayappa

Viswanathan

Rattu

et al. 2021

J. Agric. Food Chem.

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Acrylamide, a food processing contaminant with demonstrated genotoxicity, carcinogenicity, and reproductive toxicity, is largely present in numerous prominent and commonly consumed food products that are produced by thermal processing methods. Food regulatory bodies such as the U.S. Food and Drug Administration (U.S. FDA) and European Union Commission regulations have disseminated various acrylamide mitigation strategies in food processing practices. Hence, in the wake of such food and public health safety efforts, there is a rising demand for economic, rapid, and portable detection and quantification methods for these contaminants. Since conventional quantification techniques like liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-mass spectrometry (GC-MS) methods are expensive and have many drawbacks, sensing platforms with various transduction systems have become an efficient alternative tool for quantifying various target molecules in a wide variety of food samples. Therefore, this present review discusses in detail the state of robust, nanomaterials-based and other bio/chemical sensor fabrication techniques, the sensing mechanism, and the selective qualitative and quantitative measurement of acrylamide in various food materials. The discussed sensors use analytical measurements ranging from diverse and disparate optical, electrochemical, as well as piezoelectric methods. Further, discussions about challenges and also the potential development of the lab-on-chip applications for acrylamide detection and quantification are entailed at the end of this review.

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“…However, all the mentioned techniques are expensive, time-consuming, and they require a qualified operator and a sample preparation. On the other hand, electrochemical sensors show great potential due to their low cost, small size, fast response, portability, good sensibility, selectivity, low detection limit and are user-friendly [3,4]. Up to date, electrochemical AA sensors are based on molecular imprinting of nonconductive polymer which limits their performance because of probe molecules that have to be used.…”

Section: Introductionmentioning

confidence: 99%

“…Molecularly imprinted polymers (MIP) are synthetic polymers with specific recognition sites for targeted molecule based on a monomer, template and a cross-linker. Several nonconductive functional monomers [3][4][5][6]) were already used for the creation of MIP for AA molecule. Two of them [5,6] were used just for adsorption of AA for its indirect determination with HPLC.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructured Molecularly Imprinted Polyaniline for Acrylamide Sensing

Drame

Trafela

Rožman

2019

7th International Symposium on Sensor Science

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Due to the non-electroactivity of carcinogenic organic compound acrylamide, an indirect electrochemical detection by using molecularly imprinted polymer is proposed as a detection method. Polyaniline was chosen due to the conductivity, interesting properties and wide usage in the field of sensors. Polyaniline was prepared by the different electropolymerisation process to achieve different morphologies, properties. Cyclic voltammetry was further chosen for electropolymeristion of polyaniline, in which propanamide was imprinted as a template molecule. Due to the same size, shape and functional groups, so imprinted polyaniline presents a proof of concept molecule for further acrylamide bonding. Successful imprinting was confirmed by surface analysis technique (FTIR) and simple electrochemical measurements of polyaniline response.

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An electrochemical sensor based on molecularly imprinted membranes on a P-ATP–AuNP modified electrode for the determination of acrylamide

Abstract: An electrochemical sensor based on molecularly imprinted membranes for the determination of acrylamide.

Cited by 18 publications

References 36 publications

Dynamic potential and surface morphology study of sertraline membrane sensors

Dynamic potential and surface morphology study of sertraline membrane sensors

Nanomaterials Enabled and Bio/Chemical Analytical Sensors for Acrylamide Detection in Thermally Processed Foods: Advances and Outlook

Nanostructured Molecularly Imprinted Polyaniline for Acrylamide Sensing

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