A new electrochemical sensor based on Fe3O4 functionalized graphene oxide-gold nanoparticle composite film for simultaneous determination of catechol and hydroquinone

Erogul, Seyma; Baş, Salih Zeki; Özmen, Mustafa; Yıldız, Salih

doi:10.1016/j.electacta.2015.10.174

Cited by 216 publications

(47 citation statements)

References 57 publications

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“…There are only few reports on electrochemical sensors where BNP Au‐Fe has been used in the sensing matrices, which are based on direct electron transfer (DET) . These sensors also suffer due to lengthy electrode preparation and low sensor sensitivity . Therefore, there is a requirement of a simplistic approach for BNP Au‐Fe synthesis, which can be further applied to develop sensitive and stable electrochemical sensors.…”

Section: Introductionmentioning

confidence: 66%

Gold‐Iron Bimetallic Nanoparticles Impregnated Reduced Graphene Oxide Based Nanosensor for Label‐free Detection of Biomarker Related to Non‐alcoholic Fatty Liver Disease

et al. 2019

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We report for the first time a microwave assisted, one pot, direct, and facile synthesis of monodispersed iron‐gold bimetallic nanoparticles (BNPAu‐Fe) using glucose as a reducing agent in merely 90 s. The as such synthesized BNPAu‐Fe were thoroughly characterized using UV‐Vis, XRD, TEM, EDX, elemental mapping, and raman spectroscopy. These BNPAu‐Fe were further impregnated with reduced graphene oxide (rGO) and coated onto glassy carbon electrode (GCE) to develop a sensor probe for label free electrochemical detection of acetaminophen, which is considered to be a most potent biomarker related to non‐alcoholic fatty liver disease. The sensor probe was systematically characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The BNPAu‐Fe‐rGO nanocomposite matrix showed the sensing of acetaminophen with a wide dynamic range between 50 and 800 nM with detection limit (DL) of 0.14 nM (±0.05) nM (RSD<4.12 %) that was lower compared to previously reported acetaminophen sensors. To show the practical application of the sensor probe, acetaminophen was detected in human urine samples, which showed the percentage recovery between 86.65 % and 91.32 %. To the best of our knowledge, this is the first report where BNPAu‐Fe impregnated rGO was used to detect acetaminophen. Interferences due to various molecules such as glucose, serum albumin, glycine, glutamic acid, alanine, citric acid, and ascorbic acid were tested individually and in mixed sample. Long‐term stability of sensor probe was examined which was found to be stable up to 12 weeks. The sensor fabricated using BNPAu‐Fe‐rGO nanocomposite has many attractive features such as; simplicity, rapidity, and label free detection, hence it could be a method of choice for acetaminophen detection in clinical settings.

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Section: Introductionmentioning

confidence: 66%

Gold‐Iron Bimetallic Nanoparticles Impregnated Reduced Graphene Oxide Based Nanosensor for Label‐free Detection of Biomarker Related to Non‐alcoholic Fatty Liver Disease

et al. 2019

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“…3 Herein, a variety of methods, such as UV-vis spectrophotometry, liquid chromatography, electrochemical analysis, and ow injection analysis, have been developed to facilitate catechol determination. [4][5][6][7][8] However, the intrinsic drawbacks, such as complicated instruments, time-consuming pre-treatment, and low determination limits, restrict the practical application of these methods.…”

Section: Introductionmentioning

confidence: 99%

Highly selective colorimetric determination of catechol based on the aggregation-induced oxidase–mimic activity decrease of δ-MnO₂

et al. 2020

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“…In recent decades, a lot of novel nanomaterials have been developed and applied to tailor or improve the electrochemical sensors for the detection of HQ –––. For example, loading ZnO on the carbon nanofibers to decorate the surface of the glassy carbon electrode (GCE) for the electrochemical determination of HQ was reported .…”

Section: Introductionmentioning

confidence: 99%

Reversible Switched pH‐Responsive Hydroquinone Electrochemical Sensor Based on Composite Film of Polystyrene‐b‐Poly (Acrylic Acid) and Graphene Oxide

Fei

et al. 2018

Electroanalysis

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The detection of some environmental pollutants remains still a great challenge and the current methods suffer from low sensitivity, reproducibility and require sophisticated instruments. Here, a simple, sensitive and pH‐responsive electrochemical sensor for the detection of hydroquinone (HQ) was developed based on a pH‐responsive block copolymer polystyrene‐b‐poly(acrylic acid) (PS‐b‐PAA) and graphene oxide (GO) composite film (PG) modified glassy carbon electrode (GCE). The electrochemical behaviors of HQ at the modified GCE (PG/GCE) electrode were studied by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The peak current of the PG/GCE electrode toward HQ was significantly enhanced at pH 7.0 and greatly suppressed below pH 6.0, which are caused by swelling and shrinking of pH‐responsive block copolymer and the synergistic effect with GO. The PG/GCE exhibited a reversible “On/Off” switch for the HQ electrochemical behaviors between pH 4.0 and pH 7.0. When the pH of the medium is 7.0, the PG complex film on the PG/GCE is in the “On” state, the linear detection range of HQ is from 16 μM to 104 μM with a detection limit as low as 0.34 μM. Furthermore, the PG/GCE can also successfully detect the HQ concentration of the lake water sample with satisfactory recovery, indicating that the pH‐responsive block copolymer/GO‐functionalized sensor provided a powerful avenue for simple, sensitive and convenient detection of HQ, which can be translated into practical application.

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A new electrochemical sensor based on Fe3O4 functionalized graphene oxide-gold nanoparticle composite film for simultaneous determination of catechol and hydroquinone

Cited by 216 publications

References 57 publications

Gold‐Iron Bimetallic Nanoparticles Impregnated Reduced Graphene Oxide Based Nanosensor for Label‐free Detection of Biomarker Related to Non‐alcoholic Fatty Liver Disease

Gold‐Iron Bimetallic Nanoparticles Impregnated Reduced Graphene Oxide Based Nanosensor for Label‐free Detection of Biomarker Related to Non‐alcoholic Fatty Liver Disease

Highly selective colorimetric determination of catechol based on the aggregation-induced oxidase–mimic activity decrease of δ-MnO₂

Reversible Switched pH‐Responsive Hydroquinone Electrochemical Sensor Based on Composite Film of Polystyrene‐b‐Poly (Acrylic Acid) and Graphene Oxide

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A new electrochemical sensor based on Fe3O4 functionalized graphene oxide-gold nanoparticle composite film for simultaneous determination of catechol and hydroquinone

Cited by 216 publications

References 57 publications

Gold‐Iron Bimetallic Nanoparticles Impregnated Reduced Graphene Oxide Based Nanosensor for Label‐free Detection of Biomarker Related to Non‐alcoholic Fatty Liver Disease

Gold‐Iron Bimetallic Nanoparticles Impregnated Reduced Graphene Oxide Based Nanosensor for Label‐free Detection of Biomarker Related to Non‐alcoholic Fatty Liver Disease

Highly selective colorimetric determination of catechol based on the aggregation-induced oxidase–mimic activity decrease of δ-MnO2

Reversible Switched pH‐Responsive Hydroquinone Electrochemical Sensor Based on Composite Film of Polystyrene‐b‐Poly (Acrylic Acid) and Graphene Oxide

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Highly selective colorimetric determination of catechol based on the aggregation-induced oxidase–mimic activity decrease of δ-MnO₂