Exfoliated 2D-MoS2 nanosheets on carbon and gold screen printed electrodes for enzyme-free electrochemical sensing of tyrosine

Zribi, Rayhane; Elleuch, Riadh; Messina, Elena; Gillibert, Raymond; Donato, M. G.; Maragó, Onofrio M.; Gucciardi, P. G.; Leonardi, Salvatore Gianluca; Neri, G.

doi:10.1016/j.snb.2019.127229

Cited by 48 publications

(22 citation statements)

References 51 publications

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“…Furthermore, by using flexible substrates, screen printed electrodes can be easily integrated into a range of different sensing technologies -from the worlds of sports and fashion to automotive and healthcare [44]. Be this as it may, current screen-printing approaches for the detection of Tyr use rigid ceramic substrates, expensive metal nanoparticle conductive inks and stiff metal or metal oxidebased sensitive materials, that are neither sustainable nor suitable for single-use disposable or wearable sensors (Table 1) [3,6,7,10,11,17,19].…”

Section: Introductionmentioning

confidence: 99%

Disposable Electrochemical Sensor Using Graphene Oxide–Chitosan Modified Carbon-Based Electrodes for the Detection of Tyrosine

2021

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Section: Introductionmentioning

confidence: 99%

Disposable Electrochemical Sensor Using Graphene Oxide–Chitosan Modified Carbon-Based Electrodes for the Detection of Tyrosine

2021

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“…MoS 2 is the preferred and most applied TMDC for these sensors, but wide applications in this field have been also demonstrated for MoSe 2 . Except in a few cases [ 49 , 61 , 75 , 93 ], Mo-based sensors rely on composite materials where the Mo-dichalcogenides are activated mainly with noble metals [ 60 , 83 , 84 , 91 , 97 , 102 , 114 , 115 , 116 ] and carbon nanostructures [ 77 , 78 , 84 , 96 , 97 ], like graphene or graphene oxide. In particular, AuNPs was the most considered noble metal additive, because of the high affinity of gold for the sulfur atom and the other chalcogenide elements, which allows the controlled synthesis of AuNPs on TMDC nanosheets.…”

Section: Current and Future Perspectivesmentioning

confidence: 99%

“…The Inset shows the intensity of the Raman band as a function of MoS 2 loading. Adapted with permission from reference [ 49 ].…”

Section: Figurementioning

confidence: 99%

“…Ultrasonication of the bulk compounds in a liquid media has also been used for the synthesis of 2D materials. Two main factors can influence the exfoliation: the first one is the energy input to the bulk in liquid media by the bath sonication or probe sonication, and the second factor is the nature of the liquid media used [45,49]. Zribi et al prepared 2D-MoS 2 prepared via liquid ultrasonication (Figure 3a) for finalizing its use in electrochemical sensing [49,50].…”

Section: Exfoliationmentioning

confidence: 99%

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Mo-Based Layered Nanostructures for the Electrochemical Sensing of Biomolecules

Zribi

Neri

2020

Sensors

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Mo-based layered nanostructures are two-dimensional (2D) nanomaterials with outstanding characteristics and very promising electrochemical properties. These materials comprise nanosheets of molybdenum (Mo) oxides (MoO2 and MoO3), dichalcogenides (MoS2, MoSe2, MoTe2), and carbides (MoC2), which find application in electrochemical devices for energy storage and generation. In this feature paper, we present the most relevant characteristics of such Mo-based layered compounds and their use as electrode materials in electrochemical sensors. In particular, the aspects related to synthesis methods, structural and electronic characteristics, and the relevant electrochemical properties, together with applications in the specific field of electrochemical biomolecule sensing, are reviewed. The main features, along with the current status, trends, and potentialities for biomedical sensing applications, are described, highlighting the peculiar properties of Mo-based 2D-nanomaterials in this field.

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“…It has an indirect band-gap of 1.29 eV [ 3 ] that turns to semiconductor with a direct band-gap of 1.9 eV [ 4 ] going from bulk to a monolayer, offering an important charge carrier mobility. MoS 2 nanosheets have been fabricated via liquid phase exfoliation (LPE) by our groups and used for the detection of different biomolecules [ 5 , 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a Novel Electrochemical Sensor Based on Carbon Cloth Matrix Functionalized with MoO3 and 2D-MoS2 Layers for Riboflavin Determination

Zribi

Foti

Donato

et al. 2021

Sensors

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The preparation and characterization of a hybrid composite, based on carbon cloth (CC) matrix functionalized with two-dimensional (2D) MoS2 flakes and MoO3, and its use for developing an electrochemical sensor for the determination of riboflavin (RF) is here reported. The 2D-MoS2-MoO3CC composite was prepared by depositing 2D-MoS2 nanosheets, obtained by liquid phase exfoliation (LPE), on the surface of a carbon cloth fiber network, previously functionalized with a layer of molybdenum oxide (α-MoO3) by radio-frequency magnetron reactive sputtering technique. The 2D-MoS2-MoO3CC composite was characterized by scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDX), and Raman spectroscopy. An electrochemical sensor has been then fabricated by fixing a slice of the 2D-MoS2-MoO3CC composite on the working electrode of a screen-printed carbon electrode (SPCE). The 2D-MoS2-MoO3-CC/SPCE sensor display good electrochemical characteristics which have been exploited, for the first time, in the electroanalytical determination of riboflavin (RF). The sensitivity to RF, equal to 0.67 µA mM−1 in the linear range from 2 to 40 µM, and a limit of detection (LOD) of 1.5 µM at S/N = 3, demonstrate the promising characteristics of the proposed 2D-MoS2-MoO3-CC/SPCE electrochemical sensor for the determination of riboflavin.

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Exfoliated 2D-MoS2 nanosheets on carbon and gold screen printed electrodes for enzyme-free electrochemical sensing of tyrosine

Cited by 48 publications

References 51 publications

Disposable Electrochemical Sensor Using Graphene Oxide–Chitosan Modified Carbon-Based Electrodes for the Detection of Tyrosine

Disposable Electrochemical Sensor Using Graphene Oxide–Chitosan Modified Carbon-Based Electrodes for the Detection of Tyrosine

Mo-Based Layered Nanostructures for the Electrochemical Sensing of Biomolecules

Fabrication of a Novel Electrochemical Sensor Based on Carbon Cloth Matrix Functionalized with MoO3 and 2D-MoS2 Layers for Riboflavin Determination

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