A colorimetric/electrochemical dual-mode sensor based on Fe3O4@MoS2-Au NPs for high-sensitivity detection of hydrogen peroxide

Xu, Wei; Fei, Jianwen; Yang, Wei; Zheng, Yani; Dai, Yin; Sakran, Marwan; Zhang, Jun; Zhu, Wanying; Hong, Junli; Zhou, Xuemin

doi:10.1016/j.microc.2022.107825

Cited by 26 publications

(7 citation statements)

References 34 publications

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“…It is worth noting that the dilution ratio and reaction time of the probe are optimized, which further improves the sensitivity of the sensor. Xu et al 64 doped Au NPs in Fe 3 O 4 @MoS 2 and synthesized a new and more stable nano-enzyme Fe 3 O 4 @MoS 2 -Au NPs by a hydrothermal method, further improving the catalytic performance.…”

Section: Inorganic Nonmetallic Nanomaterialsmentioning

confidence: 99%

Multi-modal nanoprobe-enabled biosensing platforms: a critical review

Li,

Zhang,

et al. 2024

Nanoscale

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Section: Inorganic Nonmetallic Nanomaterialsmentioning

confidence: 99%

Multi-modal nanoprobe-enabled biosensing platforms: a critical review

Li,

Zhang,

et al. 2024

Nanoscale

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“…The photocurrent efficiency of the photo-active materials utilized in the biosensor greatly enhanced the performance of the PEC biosensor [47]. Carbon compounds, transition metal chalcogenides like CdSe [78], CdS, CdTe, Ag 2 S [49, 60, 79-82], PbS, MoS 2 [61,[83][84][85][86][87][88][89][90][91][92][93][94], and metal-oxides such as NiO [95][96][97][98][99], TiO 2 [95,[100][101][102][103][104], ZnO [105], SnO 2 , WO 3 , etc. [96,[106][107][108][109], which all have been used widely as photo-active components [110].…”

Section: Photoelectrochemical (Pec) Biosensorsmentioning

confidence: 99%

Advanced electrocatalytic materials based biosensors for cancer cell detection – A review

et al. 2023

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Herein, we have highlighted the latest developments on biosensors for cancer cell detection. Electrochemical (EC) biosensors offer several advantages such as high sensitivity, selectivity, rapid analysis, portability, low‐cost, etc. Generally, biosensors could be classified into other basic categories such as immunosensors, aptasensors, cytosensors, electrochemiluminescence (ECL), and photo‐electrochemical (PEC) sensors. The significance of the EC biosensors is that they could detect several biomolecules in human body including cholesterol, glucose, lactate, uric acid, DNA, blood ketones, hemoglobin, and others. Recently, various EC biosensors have been developed by using electrocatalytic materials such as silver sulfide (Ag2S), black phosphene (BPene), hexagonal carbon nitrogen tube (HCNT), carbon dots (CDs)/cobalt oxy‐hydroxide (CoOOH), cuprous oxide (Cu2O), polymer dots (PDs), manganese oxide (MnO2), graphene derivatives, and gold nanoparticles (Au‐NPs). In some cases, these newly developed biosensors could be able to detect cancer cells with a limit of detection (LOD) of 1 cell/mL. In addition, many remaining challenges have to be addressed and validated by testing more real samples and confirm that these EC biosensors are more accurate and reliable to measure cancer cells in the blood and salivary samples.

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“…They prepared the NCs of iron oxide-molybdenum disulfide-gold (Fe 3 O 4 -MoS 2 -Au). The limit of detection from electrochemical (EC) and colorimetric sensing was 0.08 μM and 0.109 μM, respectively [ 44 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensing of H2O2 by Employing a Flexible Fe3O4/Graphene/Carbon Cloth as Working Electrode

et al. 2023

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We report the synthesis of Fe3O4/graphene (Fe3O4/Gr) nanocomposite for highly selective and highly sensitive peroxide sensor application. The nanocomposites were produced by a modified co-precipitation method. Further, structural, chemical, and morphological characterization of the Fe3O4/Gr was investigated by standard characterization techniques, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM) and high-resolution TEM (HRTEM), Fourier transform infrared (FTIR), and X-ray photoelectron spectroscopy (XPS). The average crystal size of Fe3O4 nanoparticles was calculated as 14.5 nm. Moreover, nanocomposite (Fe3O4/Gr) was employed to fabricate the flexible electrode using polymeric carbon fiber cloth or carbon cloth (pCFC or CC) as support. The electrochemical performance of as-fabricated Fe3O4/Gr/CC was evaluated toward H2O2 with excellent electrocatalytic activity. It was found that Fe3O4/Gr/CC-based electrodes show a good linear range, high sensitivity, and a low detection limit for H2O2 detection. The linear range for the optimized sensor was found to be in the range of 10–110 μM and limit of detection was calculated as 4.79 μM with a sensitivity of 0.037 µA μM−1 cm−2. The cost-effective materials used in this work as compared to noble metals provide satisfactory results. As well as showing high stability, the proposed biosensor is also highly reproducible.

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A colorimetric/electrochemical dual-mode sensor based on Fe3O4@MoS2-Au NPs for high-sensitivity detection of hydrogen peroxide

Cited by 26 publications

References 34 publications

Multi-modal nanoprobe-enabled biosensing platforms: a critical review

Multi-modal nanoprobe-enabled biosensing platforms: a critical review

Advanced electrocatalytic materials based biosensors for cancer cell detection – A review

Electrochemical Sensing of H2O2 by Employing a Flexible Fe3O4/Graphene/Carbon Cloth as Working Electrode

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