One-pot fabrication of AuNPs-Prussian blue-Graphene oxide hybrid nanomaterials for non-enzymatic hydrogen peroxide electrochemical detection

Liu, Xiaoli; Zhang, Xinjin; Zheng, Jianbin

doi:10.1016/j.microc.2020.105595

Cited by 26 publications

(15 citation statements)

References 46 publications

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“…The calculated sensitivity and LOD of the N-rGO/SPCE toward the sensing of H 2 O 2 using the CV and LSV methods are presented in Table 1 . The obtained results are comparable with previous reports as listed in Table 1 [ 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 ].…”

Section: Resultssupporting

confidence: 92%

“…The calculated sensitivity and LOD of the N-rGO/SPCE toward the sensing of H 2 O 2 using the CV and LSV methods are presented in Table 1. The obtained results are comparable with previous reports as listed in Table 1 [49][50][51][52][53][54][55][56][57][58][59][60][61][62]. In previous years, various electrode materials have been explored for the construction of H 2 O 2 sensors.…”

Section: Electrochemical Performance Of N-rgo/spcesupporting

confidence: 89%

“…A hybrid composite of molybdenum disulfide (MoS 2 ) and rGO was also explored for H 2 O 2 sensing applications by Yang et al [ 56 ]. AuNP-Prussian blue (PB)-graphene oxide (GO) was used as a H 2 O 2 sensor by Liu et al [ 57 ] while CuNP-rGO was applied as a H 2 O 2 sensor by Nia et al [ 58 ]. Mutyala et al [ 58 ] prepared electrochemically reduced graphene oxide (ERGO) using the electrodeposition approach and fabricated a H 2 O 2 sensor that showed a LOD of 0.7 µM.…”

Section: Resultsmentioning

confidence: 99%

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Fabrication of Nitrogen-Doped Reduced Graphene Oxide Modified Screen Printed Carbon Electrode (N-rGO/SPCE) as Hydrogen Peroxide Sensor

Ahmad

Kim

2022

Nanomaterials

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In recent years, the electrochemical sensing approach has attracted electrochemists because of its excellent detection process, simplicity, high sensitivity, cost-effectiveness, and high selectivity. In this study, we prepared nitrogen doped reduced graphene oxide (N-rGO) and characterized it using various advanced techniques such as XRD, SEM, EDX, Raman, and XPS. Furthermore, we modified the active surface of a screen printed carbon electrode (SPCE) via the drop-casting of N-rGO. This modified electrode (N-rGO/SPCE) exhibited an excellent detection limit (LOD) of 0.83 µM with a decent sensitivity of 4.34 µAµM−1cm−2 for the detection of hydrogen peroxide (H2O2). In addition, N-rGO/SPCE also showed excellent selectivity, repeatability, and stability for the sensing of H2O2. Real sample investigations were also carried out that showed decent recovery.

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Section: Resultssupporting

confidence: 92%

“…The calculated sensitivity and LOD of the N-rGO/SPCE toward the sensing of H 2 O 2 using the CV and LSV methods are presented in Table 1. The obtained results are comparable with previous reports as listed in Table 1 [49][50][51][52][53][54][55][56][57][58][59][60][61][62]. In previous years, various electrode materials have been explored for the construction of H 2 O 2 sensors.…”

Section: Electrochemical Performance Of N-rgo/spcesupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication of Nitrogen-Doped Reduced Graphene Oxide Modified Screen Printed Carbon Electrode (N-rGO/SPCE) as Hydrogen Peroxide Sensor

Ahmad

Kim

2022

Nanomaterials

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“…Using the Randles−Sevcik equation, the electroactive area of AuNPs/PB/SPE was calculated as 0.181 cm 2 , which was higher than that of PB/SPE (0.153 cm 2 ). It agreed well with a previous work 26 and suggested better electron transfer. Oppositely, ssDNA incubation led to a noticeable current drop since negatively charged phosphate backbones of ssDNA blocked electron movement.…”

Section: ■ Results and Discussionmentioning

confidence: 82%

Ratiometric Detection of Ochratoxin A Using a Regenerable COF-Au-MB-Apt Signal Probe on a Thermal-Regulated Sensor Module

Zhou

Sun

et al. 2023

Anal. Chem.

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Ochratoxin A (OTA) frequently contaminates grains and consequently threatens human health. Herein, we develop a regenerable signal probe and apply it to a Au-based screen-printed electrode module (SPE) for OTA determination. The signal probe, containing a structural covalent organic framework, gold nanoparticles (AuNPs), indicative methylene blue (MB), and a highly selective aptamer, is synthesized with hydrothermal and self-assembly methods. The SPE is permanently functionalized with Prussian blue (PB), AuNPs, and semicomplementary ssDNA. The signal probe, absorbed onto this SPE via hybridization, is competitively expelled by OTA, providing a ratiometric readout of ΔI MB/I PB. Probe regeneration, to erase expired COF-Au-MB-Apt after each analysis, is established with the synergy of OTA-conducted Apt-ssDNA dissociation and on-chip thermal regulation. This advantage powerfully guarantees reduplicative analyses by avoiding irreversible Apt-OTA combination and accumulation on the sensing interface. Regenerations are performed in repetitive cycles (N = 7) with 98.5% reproduction efficiency, and I MB and I PB fluctuations are calculated as 1.45 and 1.12%. This method shows log-linear OTA response in a wide range from 0.2 pg/mL to 0.6 μg/mL, and the limit of detection is 0.12 pg/mL. During natural OTA determinations, recommended readouts match well with HPLC with less than 4.82% relative error.

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“…The choice of electrode material plays a significant role in the fabrication of a non-enzymatic sensor since these materials dramatically influences the sensitivity, selectivity, catalytic activity and stability of the sensor. 23 Therefore, a variety of materials are continuously being explored, which includes carbon nanomaterials, 2D materials, metal nanoparticles, metal oxides, complexes, polymers, ionic liquids (ILs) and so on. [24][25][26] Among them, IL based electrochemical sensors and biosensors are increasingly reported owing to their unique characteristics including excellent ionic conductivity, synthetic versatility, good electrochemical stability, less toxicity and tunable physicochemical properties.…”

mentioning

confidence: 99%

Anthraquinone Functionalized Ionic Liquid Based Disposable Electrochemical Sensor for the Enzyme-Free Detection of Hydrogen Peroxide

et al. 2022

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A simple and selective enzyme-free electrochemical sensor for H2O2 has been designed and fabricated using ionic liquid (IL) tagged anthraquinone (AQ) modified electrode (AQ-PF6-IL). This newly synthesized AQ- PF6-IL has been systematically characterized, after which it has been immobilized over a screen-printed electrode to produce AQ-PF6-IL/SPE. The electrochemical investigation of AQ-PF6-IL/SPE displayed a set of distinct redox peaks attributable to the anthraquinone/anthrahydroquinone redox pair. Interestingly, AQ-PF6-IL/SPE has shown enhanced peak current at reduced formal potential for AQ, when compared to AQ/SPE. Further, the electrocatalytic activity of AQ-PF6-IL/SPE towards the reduction of H2O2 was investigated with the sequential addition of H2O2. A rapid and appreciable enhancement in cathodic peak currents was observed and thus demonstrating the excellent electrochemical reduction of H2O2 at the newly developed sensor. Besides, AQ-PF6-IL/SPE established a good linear behaviour over a concentration range of 10-1228 μM with a high sensitivity of 0.281 μA μM-1 cm-2 and low detection limit of 2.87 μM. The fabricated sensor displayed excellent stability, good anti-interference ability, and acceptable reproducibility. The superior properties of the developed sensor could be attributed to the newly designed AQ-PF6-IL, wherein the redox characteristics of AQ mediator are integrated with the high stability and conductivity of IL.

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One-pot fabrication of AuNPs-Prussian blue-Graphene oxide hybrid nanomaterials for non-enzymatic hydrogen peroxide electrochemical detection

Cited by 26 publications

References 46 publications

Fabrication of Nitrogen-Doped Reduced Graphene Oxide Modified Screen Printed Carbon Electrode (N-rGO/SPCE) as Hydrogen Peroxide Sensor

Fabrication of Nitrogen-Doped Reduced Graphene Oxide Modified Screen Printed Carbon Electrode (N-rGO/SPCE) as Hydrogen Peroxide Sensor

Ratiometric Detection of Ochratoxin A Using a Regenerable COF-Au-MB-Apt Signal Probe on a Thermal-Regulated Sensor Module

Anthraquinone Functionalized Ionic Liquid Based Disposable Electrochemical Sensor for the Enzyme-Free Detection of Hydrogen Peroxide

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