Graphene-ferrocene functionalized cyclodextrin composite with high electrochemical recognition capability for phenylalanine enantiomers

Niu, Xiaohui; Mo, Zunli; Xing, Yang; Shuai, Chao; Liu, Nijuan; Guo, Ruibin

doi:10.1016/j.bioelechem.2019.03.006

Cited by 52 publications

(38 citation statements)

References 47 publications

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“…Clearly, the data indicate that the incorporation of ZnO NPs seems to be able to slightly improve the sensitivity. However, the modified electrodes based on only any single material, even the simple combination of two components including MWCNTs, PMAEFc, and ZnO NPs surprisingly do not show well-defined redox peak currents, which is different from the results reported by quite a lot of references in that ferrocene based compounds with CNTs modified electrodes have shown excellent ferrocene peaks [49,50,51]. It has been reported that the electrical properties of the composites depend on the aspect ratio, alignment, and even alignment thickness, and dispersion of conductive fillers, and the alignment of MWCNTs in a certain way, viz.…”

Section: Resultscontrasting

confidence: 59%

Organic–Inorganic Nanohybrid Electrochemical Sensors from Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles and In-Situ Wrapped with Poly(2-methacryloyloxyethyl ferrocenecarboxylate) for Detection of the Content of Food Additives

Cui

et al. 2019

Nanomaterials

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An electrochemical sensor for detection of the content of aspartame was developed by modifying a glassy carbon electrode (GCE) with multi-walled carbon nanotubes decorated with zinc oxide nanoparticles and in-situ wrapped with poly(2-methacryloyloxyethyl ferrocenecarboxylate) (MWCNTs@ZnO/PMAEFc). MWCNTs@ZnO/PMAEFc nanohybrids were prepared through reaction of zinc acetate dihydrate with LiOH·H2O, followed by reversible addition-fragmentation chain transfer polymerization of 2-methacryloyloxyethyl ferrocenecarboxylate, and were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Raman, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM), scanning electron microscope (SEM), and transmission electron microscope (TEM) techniques. The electrochemical properties of the prepared nanohybrids with various composition ratios were examined by cyclic voltammetry (CV), and the trace additives in food and/or beverage was detected by using differential pulse voltammetry (DPV). The experimental results indicated that the prepared nanohybrids for fabrication of electrochemical modified electrodes possess active electroresponse, marked redox current, and good electrochemical reversibility, which could be mediated by changing the system formulations. The nanohybrid modified electrode sensors had a good peak current linear dependence on the analyte concentration with a wide detection range and a limit of detection as low as about 1.35 × 10−9 mol L−1, and the amount of aspartame was measured to be 35.36 and 40.20 µM in Coke zero, and Sprite zero, respectively. Therefore, the developed nanohybrids can potentially be used to fabricate novel electrochemical sensors for applications in the detection of beverage and food safety.

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Section: Resultscontrasting

confidence: 59%

Organic–Inorganic Nanohybrid Electrochemical Sensors from Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles and In-Situ Wrapped with Poly(2-methacryloyloxyethyl ferrocenecarboxylate) for Detection of the Content of Food Additives

Cui

et al. 2019

Nanomaterials

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“…The situation in which the electrochemical signal does not change with the increasing concentration of l ‐Phe is likely if the positively charged −NH 3 + of l ‐Phe methyl ester hydrochloride is hidden in the inner β‐CD cavity and is, therefore, unavailable for the redox marker (Scheme ). This observation is in agreement with previously published results .…”

Section: Resultsmentioning

confidence: 99%

Molecular Recognition of Phenylalanine Enantiomers onto a Solid Surface Modified with Electropolymerized Pyrrole‐β‐Cyclodextrin Conjugate

et al. 2019

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We report the electrochemical deposition of a β‐cyclodextrin pyrrole conjugate (Py‐β‐CD) on an electrode surface including i) characterization based on surface‐enhanced Raman scattering and field‐emission scanning electron microscopy; ii) studies of the molecular recognition of enantiomers of phenylalanine methyl ester hydrochlorides (Phe) based on linear sweep voltammetry and a quartz crystal microbalance. The PPy‐β‐CD polymeric layer on a metallic substrate is distinguished by its inhomogeneity, in which both highly ordered β‐CD units and highly disordered polymer chains are observed. The voltammetric recognition results showed that PPy‐β‐CD exhibited a higher sensitivity for d‐Phe (138±15)×103 than for l‐Phe (6±1)×103 within the concentration range 0.1–0.75 mM (n=3) despite the differences in the polymer arrangement on the surface. A possible mechanism of molecular recognition of phenylalanine enantiomers is discussed.

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“…[ 86 ] Other chiral hybrids exploited following the similar idea are RGO/ β ‐CD/CPE (carbon paste electrode) for electrochemically sensing moxifloxacin hydrochloride enantiomers; [ 97 ] RGO/ β ‐CD/MB/GCE (MB, methylene blue) for electrochemically sensing chiral carboxylic acids; [ 98 ] RGO/ β ‐CD for electrically and optically sensing tryptophan enantiomers; [ 87 ] RGO/PNP/ β ‐CD/CPE (PNP, platinum nanoparticles) for electrochemically sensing chiral clopidogrels; [ 99 ] RGO/PTCA/ β ‐CD (PTCA, 3,4,9,10‐perylene tetracarboxylic acid) for electrochemically recognizing chiral phenylalanine; [ 100 ] RGO/ferrocene/ β ‐CD for electrochemically recognizing phenylalanine racemate. [ 101 ] These studies evidently show the importance of electrochemical sensors for enantio‐differentiating chiral compounds, due to their merits particularly in easy and fast operation.…”

Section: Construction Of Chiral Graphene Hybrid Materialsmentioning

confidence: 99%

Chiral Graphene Hybrid Materials: Structures, Properties, and Chiral Applications

et al. 2021

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Chirality has become an important research subject. The research areas associated with chirality are under substantial development. Meanwhile, graphene is a rapidly growing star material and has hard‐wired into diverse disciplines. Rational combination of graphene and chirality undoubtedly creates unprecedented functional materials and may also lead to great findings. This hypothesis has been clearly justified by the sizable number of studies. Unfortunately, there has not been any previous review paper summarizing the scattered studies and advancements on this topic so far. This overview paper attempts to review the progress made in chiral materials developed from graphene and their derivatives, with the hope of providing a systemic knowledge about the construction of chiral graphenes and chiral applications thereof. Recently emerging directions, existing challenges, and future perspectives are also presented. It is hoped this paper will arouse more interest and promote further faster progress in these significant research areas.

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Graphene-ferrocene functionalized cyclodextrin composite with high electrochemical recognition capability for phenylalanine enantiomers

Cited by 52 publications

References 47 publications

Organic–Inorganic Nanohybrid Electrochemical Sensors from Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles and In-Situ Wrapped with Poly(2-methacryloyloxyethyl ferrocenecarboxylate) for Detection of the Content of Food Additives

Organic–Inorganic Nanohybrid Electrochemical Sensors from Multi-Walled Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles and In-Situ Wrapped with Poly(2-methacryloyloxyethyl ferrocenecarboxylate) for Detection of the Content of Food Additives

Molecular Recognition of Phenylalanine Enantiomers onto a Solid Surface Modified with Electropolymerized Pyrrole‐β‐Cyclodextrin Conjugate

Chiral Graphene Hybrid Materials: Structures, Properties, and Chiral Applications

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