Dummy molecularly imprinted polymer based microplate chemiluminescence sensor for one-step detection of Sudan dyes in egg

He, Tong; Wang, Geng Nan; Liu, Juxiang; Zhao, Wei; Huang, Jing; Xu, Ming; Wang, Jian Ping; Liu, Jing

doi:10.1016/j.foodchem.2019.03.031

Cited by 32 publications

(19 citation statements)

References 35 publications

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“…This methodw as first developed by Li et al for the determination of ethopabate residues in chicken muscles. [40] Further applications were found for the detection of Sudan dyes in eggs [41] as well as tetracyclines in milk. [42] The vast range of applications of molecular imprinted polymers for sensing and separation reachesf urthert han the scope of this contribution.F or further information,w erefer to recent reviews on the topic.…”

Section: Food Analysismentioning

confidence: 99%

All Eyes on Visible‐Light Peroxyoxalate Chemiluminescence Read‐Out Systems

Delafresnaye

Bloesser

Kockler

et al. 2019

Chemistry A European J

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Chemiluminescence (CL) reactions have been widely employed and explored over the past 50 years because they offer unique light emission upon a defined chemical stimulus. In this Minireview, we focus on peroxyoxalate (PO) compounds because they feature very high quantum yields tuneable over the entire visible spectrum, allowing for visible‐light detection by the naked eye without the necessity for expensive analytical instruments. Although analytical methods have been extensively described, PO‐CL read‐out is a strongly emerging field with ample industrial potential. The state‐of‐the‐art PO‐CL detection read‐out systems for various key analytes is here explored. In particular, structural requirements, recent developments of PO‐CL read‐out probes and current limitations of selected examples are detailed. Furthermore, innovative approaches and synthetic routes to push the boundaries of PO‐CL reactions into biological systems are highlighted. Underpinned by recent contributions, we share perspectives on embedding PO‐CL molecules into polymeric materials, which they consider the next step in designing high performance solid‐phase read‐out systems.

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Section: Food Analysismentioning

confidence: 99%

All Eyes on Visible‐Light Peroxyoxalate Chemiluminescence Read‐Out Systems

Delafresnaye

Bloesser

Kockler

et al. 2019

Chemistry A European J

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“…The development of chemical sensors based on polymers biomimics, which are synthetic mimics of enzymes or antibodies, is one of the most effective approaches to small molecules detection, as they possess high selectivity and stability, when compared to biosensors based on natural molecules [11,[15][16][17]. Molecularly imprinted polymers (MIPs), prepared by polymerization methodology [18], are a novel class of high selectivity polymeric materials, which are synthesized in the presence of the target molecule, together with a functional monomer and cross-linking agent [19,20]. The presence of a template molecule during the synthesis allows the formation of specific cavities for the analyte or molecules with high structural similarity [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Computational design of synthetic receptors for drug detection: interaction between molecularly imprinted polymers and MDMA (3,4-methylenedioxymethamphetamine)

Sales

Ramalho

2020

Theor Chem Acc

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For many decades, synthetic receptors have been used as sensor elements and are a promising alternative to natural receptors, which, despite its great selectivity, are so complex and instable. The rational design of this kind of receptors is currently one of the most researched topics in molecular recognition. Molecular imprinted polymers (MIPs) have become a growing highlight in polymer chemistry, once they possess a wide range of applications and can be used in several environments, due to their high chemical and thermal stability. The aim of this study was to perform a rational design for the MIP preparation, for 3,4-methylenedioxymethamphetamine (MDMA) detection. The theoretical measurements were employed at several stages of the process, using DFT and B3LYP/6-31G(d,p) level of theory, by means of optimization and frequency calculations. Among the several functional monomers tested, the itaconic acid was the most appropriated for MIP preparation with MDMA template, and the proper molar ratio found theoretically was 3:1 (itaconic acid/MDMA). In the preparation of pre-polymerization complex, polar solvents were found to perform a better stabilization, mainly those which are not protic solvents. As cross-linking agents, the better results were obtained for trimethylolpropane trimethacrylate and ethylene glycol dimethacrylate molecules, respectively. Finally, selectivity tests showed a high affinity of the studied MIP for MDMA and chemically similar molecules. The proposal theoretical strategy yielded novel, experimentally testable hypotheses for the design of MIPs. Additionally, from the theoretical point of view, the set of computational analyses presented in this paper constitutes a very useful protocol to predict optimal experimental conditions, which can considerably reduce the time and cost on the MIPs preparation.

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“…Till date, many methods have been reported for accurate determination of Sudan I, such as high‐performance liquid chromatography (HPLC), [8–10] HPLC‐UV, [11,12] chemi‐luminescence, [13] capillary electrophoresis, [14] thin layer chromatography, [15] and electrochemical methods, [16] etc. Among these methods electrochemical techniques are favored by researchers due to fast response, simplicity, low cost, high sensitivity and real‐time determination in situ condition [17–19] .…”

Section: Introductionmentioning

confidence: 99%

Detection of Sudan I in Foods by a MOF‐5/MWCNT Modified Electrode

Sun

2020

ChemistrySelect

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Sudan I (1‐Phenylazo‐2‐naphthol) is often found in food samples. However, Sudan I could be metabolized to possible carcinogenic amines in the liver, stomach intestine, and human skin. Hence, it is of crucial importance to develop efficient methods for the quantification of trace Sudan I in foodstuffs. Here, we developed a sensitive electrochemical method for detection of Sudan I using MOF‐5 decorated Multi‐walled carbon nanotubes (MOF‐5/MWCNTs) modified electrode. The electrochemical behaviour of different modified electrodes toward Sudan I have been studied in detail. The results indicated that MOF‐5/MWCNTs composite‐modified electrode has a higher electrocatalytic activity towards Sudan I. Under the optimal conditions, the modified electrode showed a wide linear current response in the concentration range of 0.05‐50 μM, with a detection limit of 0.0318 μM (S/N=3). As a proof of concept, the proposed method was used for detecting Sudan I in ketchup and Chilli powder with satisfactory results.

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Dummy molecularly imprinted polymer based microplate chemiluminescence sensor for one-step detection of Sudan dyes in egg

Cited by 32 publications

References 35 publications

All Eyes on Visible‐Light Peroxyoxalate Chemiluminescence Read‐Out Systems

All Eyes on Visible‐Light Peroxyoxalate Chemiluminescence Read‐Out Systems

Computational design of synthetic receptors for drug detection: interaction between molecularly imprinted polymers and MDMA (3,4-methylenedioxymethamphetamine)

Detection of Sudan I in Foods by a MOF‐5/MWCNT Modified Electrode

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