Metal−organic frameworks-derived MnO2/Mn3O4 microcuboids with hierarchically ordered nanosheets and Ti3C2 MXene/Au NPs composites for electrochemical pesticide detection

Song, Dandan; Jiang, Xinyu; Li, Yanshan; Li, Xiong; Luan, Sunrui; Wang, Yuanzhe; Li, Yan; Gao, Faming

doi:10.1016/j.jhazmat.2019.03.083

Cited by 232 publications

(68 citation statements)

References 59 publications

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“… Illustration of the formation of MnO 2 /Mn 3 O 4 composite ( A ), MXene/Au NPs ( B ), the fabrication process of AChE-Chit/MXene/Au NPs/MnO 2 /Mn 3 O 4 /GCE biosensor for methamidophos assay ( C ) (reproduced with permission from reference [ 74 ]). …”

Section: Figurementioning

confidence: 99%

MXenes-Based Bioanalytical Sensors: Design, Characterization, and Applications

Khan

Andreescu

2020

Sensors

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MXenes are recently developed 2D layered nanomaterials that provide unique capabilities for bioanalytical applications. These include high metallic conductivity, large surface area, hydrophilicity, high ion transport properties, low diffusion barrier, biocompatibility, and ease of surface functionalization. MXenes are composed of transition metal carbides, nitrides, or carbonitrides and have a general formula Mn+1Xn, where M is an early transition metal while X is carbon and/or nitrogen. Due to their unique features, MXenes have attracted significant attention in fields such as clean energy production, electronics, fuel cells, supercapacitors, and catalysis. Their composition and layered structure make MXenes attractive for biosensing applications. The high conductivity allows these materials to be used in the design of electrochemical biosensors and the multilayered configuration makes them an efficient immobilization matrix for the retention of activity of the immobilized biomolecules. These properties are applicable to many biosensing systems and applications. This review describes the progress made on the use and application of MXenes in the development of electrochemical and optical biosensors and highlights future needs and opportunities in this field. In particular, opportunities for developing wearable sensors and systems with integrated biomolecule recognition are highlighted.

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Section: Figurementioning

confidence: 99%

MXenes-Based Bioanalytical Sensors: Design, Characterization, and Applications

Khan

Andreescu

2020

Sensors

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“…An electrochemical sensing platform was set up by Song, Jiang, et al (2019) using MOF-derived MnO 2 /Mn 3 O 4 and Ti 3 C 2 MXene/Au NP composites for methamidophos (an organophosphate insecticide) determination. Under the optimal conditions, this method had a wide linear range (10 −12 -10 −6 M; R = 0.995) and a low LOD (1.34 × 10 −13 M).…”

Section: Electrochemical Techniquesmentioning

confidence: 99%

Analytical methods to analyze pesticides and herbicides

Begum

Xue

2020

Water Environment Research

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This paper reviews studies published in 2019, in the area of analytical techniques for determination of pesticides and herbicides. It should be noted that some of the reports summarized in this review are not directly related to but could potentially be used for water environment studies. Based on different methods, the literatures are organized into six sections, namely extraction methods, electrochemical techniques, spectrophotometric techniques, chemiluminescence and fluorescence methods, chromatographic and mass spectrometric techniques, and biochemical assays.

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“…Alternatively amine groups of chitosan can be then applied for covalent immobilization of proteins using glutaraldehyde as a crosslinker [25]. The enzyme can be delivered on the interface directly from a mixture of the enzyme and chitosan [26] or from a mixture containing MXene, enzyme and chitosan in one step [27].…”

Section: Deposition Of Mxene On Surfacesmentioning

confidence: 99%

“…The hybrid nanocomposite was then deposited on GCE from a chitosan dispersion and negatively charged acetylcholinesterase (AChE) was electrostatically deposited on a chitosan modified interface [40]. Song et al applied the protocol for deposition of AuNPs on MXene with a final deposition of AChE from a mixture of the enzyme and chitosan [26]. Alternatively, AuNPs can be deposited on MXene using an external reducing agent such as NaBH 4 [28].…”

Section: Further Modification Of Mxenesmentioning

confidence: 99%

“…Transition metal oxides derived from metal -organic frameworks combined with 2D MXene present an innovative pathway for designing promising biosensors. Song et al applied two different types of hybrid nanoparticles i. e. MnO 2 /Mn 3 O 4 and MXene/AuNPs for modification of GCE with a final immobilization of AChE from a mixture with chitosan for ultra-sensitive determination of pesticide ( Figure 9) [26]. Methamidophos was detected in a broad concentration range from 10 À 12 to 10 À 6 M with LOD of 134 fM at an applied working potential of 0.55 V vs. SCE [26].…”

Section: Electrochemical Enzyme Biosensorsmentioning

confidence: 99%

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2D MXenes as Perspective Immobilization Platforms for Design of Electrochemical Nanobiosensors

et al. 2019

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MXenes are a new group of 2D nanomaterials with fascinating properties including high electrical conductivity, hydrophilic nature, easily tunable structure and high surface area. This is why MXene modified interfaces are extremely promising for the preparation of sensitive electrochemical biosensors. While there are numerous reports on MXene‐based enzymatic biosensors for detection of a wide range of analytes, application of MXene for construction of affinity biosensors is in its infancy. The review article summarizes current state‐of the‐art in the field with a focus on MXene modifications needed for construction of robust and high performance MXene electrochemical biosensors.

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Metal−organic frameworks-derived MnO2/Mn3O4 microcuboids with hierarchically ordered nanosheets and Ti3C2 MXene/Au NPs composites for electrochemical pesticide detection

Cited by 232 publications

References 59 publications

MXenes-Based Bioanalytical Sensors: Design, Characterization, and Applications

MXenes-Based Bioanalytical Sensors: Design, Characterization, and Applications

Analytical methods to analyze pesticides and herbicides

2D MXenes as Perspective Immobilization Platforms for Design of Electrochemical Nanobiosensors

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