Metal-organic frameworks (MOFs) and MOF composites based biosensors

Mohanty, Biswajit; Kumari, Sarita; Yadav, Preety; Kanoo, Prakash; Chakraborty, Anindita

doi:10.1016/j.ccr.2024.216102

Coordination Chemistry Reviews

2024

DOI: 10.1016/j.ccr.2024.216102

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Metal-organic frameworks (MOFs) and MOF composites based biosensors

Biswajit Mohanty,

Sarita Kumari,

Preety Yadav

et al.

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Cited by 20 publications

References 313 publications

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Ternary Heterojunction ZnS‐ZnIn₂S₄‐In₂S₃ Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Chen,

Jia,

Zhao

et al. 2024

Adv Funct Materials

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The visualization of electrode reactions is significant for ultra sensitive detection. Traditional electrochemiluminescence (ECL) detection method can hardly visualize electrode reactions. Combining ECL imaging technology and traditional ECL detection methods can overcome the lack of visual feedback of key information in sensor construction. In contrast to cyclic voltammetry testing, applying a constant voltage to the electrode surface for ECL imaging results in a more stable signal. In this study, methionine‐stabilized gold nanoclusters (Met‐AuNCs) are used as efficient near‐infrared luminescent clusters, and triethylamine (TEA) as coreactants to construct an ECL imaging sensor for the detection of acetamiprid (ACT). The ternary heterojunction ZnS‐ZnIn2S4‐In2S3 (Z‐Z‐I) forms a stepwise electron transfer mode, facilitating the rapid generation of free radicals in TEA. Furthermore, Z‐Z‐I serves as a substrate, providing a large loading area for the DNA chain, which lays a foundation for the wide detection range. Such an ECL imaging sensor has a wide linear range (100 fm to 1 µm) and achieves a low detection limit (42 fM) for ACT detection. This study not only provides an efficient and accurate method for detecting ACT in agricultural products but also foretells the promising application of visual imaging technology in electrochemiluminescent sensors.

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Ternary Heterojunction ZnS‐ZnIn₂S₄‐In₂S₃ Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Chen,

Jia,

Zhao

et al. 2024

Adv Funct Materials

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Metal‐Organic Framework (MOF)‐Based Sensors for Mercury (Hg) Detection: Design Strategies and Recent Progress

Ma,

Zhang,

Xiang

et al. 2024

Chemistry A European J

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Monitoring mercury (Hg) is critical for environmental and public health. Metal‐organic framework (MOF)‐based sensors demonstrate the advantage of high sensitivity and rapid response. We summarize the advances of MOF sensors for Hg2+ detection from the perspective of MOF type and role in the sensors. First, we introduce three MOFs used in Hg sensors—UIO, ZIF, and MIL—that have demonstrated superior performance. Then, we discuss the specifics of MOF‐based sensors for Hg2+ detection in terms of the recognition and signal elements. Currently, the recognition elements include T‐rich aptamers, noble metal nanoparticles, central metal ions, and organic functional groups inherent to MOFs. Sensors with fluorescence and colorimetric signals are the two main types of optical MOF sensors used for Hg detection. Electrochemical sensors have also been fabricated, but these are less frequently reported, potentially due to the limited conductivity and cycling stability of MOFs. Notably, dual‐signal sensors mitigate background signals interference and enhance the accuracy of Hg2+ detection. Furthermore, to facilitate portability and user‐friendliness, portable devices such as microfluidics, paper‐based devices, and smartphones have been developed for Hg2+ detection, showcasing potential applications. We also address the challenges related to MOF‐based sensors for Hg2+ and future outlook.

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Rational MOF Membrane Design for Gas Detection in Complex Environments

Kong,

Yu,

Chen

et al. 2024

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Metal‐organic frameworks (MOFs) hold significant promise in the realm of gas sensing. However, current understanding of their sensing mechanisms remains limited. Furthermore, the large‐scale fabrication of MOFs is hampered by their inadequate mechanical properties. These two challenges contribute to the sluggish development of MOF‐based gas‐sensing materials. In this review, the selection of metal ions and organic ligands for designing MOFs is first presented, deepening the understanding of the interactions between different metal ions/organic ligands and target gases. Subsequently, the typical interfacial synthesis strategies (gas‐solid, gas‐liquid, solid‐liquid interfaces) are provided, highlighting the potential for constructing MOF membranes on superhydrophobic and/or superhydrophilic substrates. Then, a multi‐scale structure design strategies is proposed, including multi‐dimensional membrane design and heterogeneous membrane design, to improve sensing performance through enhanced interfacial mass transfer and specific gas sieving. This strategy is anticipated to augment the task‐specific capabilities of MOF‐based materials in complex environments. Finally, several key future research directions are outlined with the aim not only to further investigate the underlying sensing principles of MOF membranes but also to achieve efficient detection of target gases amidst interfering gases and elevated moisture levels.

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Metal-organic frameworks (MOFs) and MOF composites based biosensors

Cited by 20 publications

References 313 publications

Ternary Heterojunction ZnS‐ZnIn₂S₄‐In₂S₃ Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Ternary Heterojunction ZnS‐ZnIn₂S₄‐In₂S₃ Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Metal‐Organic Framework (MOF)‐Based Sensors for Mercury (Hg) Detection: Design Strategies and Recent Progress

Rational MOF Membrane Design for Gas Detection in Complex Environments

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Product

Resources

About

Metal-organic frameworks (MOFs) and MOF composites based biosensors

Cited by 20 publications

References 313 publications

Ternary Heterojunction ZnS‐ZnIn2S4‐In2S3 Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Ternary Heterojunction ZnS‐ZnIn2S4‐In2S3 Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Metal‐Organic Framework (MOF)‐Based Sensors for Mercury (Hg) Detection: Design Strategies and Recent Progress

Rational MOF Membrane Design for Gas Detection in Complex Environments

Contact Info

Product

Resources

About

Ternary Heterojunction ZnS‐ZnIn₂S₄‐In₂S₃ Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals

Ternary Heterojunction ZnS‐ZnIn₂S₄‐In₂S₃ Efficiently Catalyzes Triethylamine to Enhance Electrochemiluminescence Imaging Signals