Facile synthesis of highly blue fluorescent tyrosine coated molybdenum oxide quantum dots for the detection of imidacloprid pesticide

Kateshiya, Mehul R.; Malek, Naved I.; Kailasa, Suresh Kumar

doi:10.1016/j.molliq.2020.114329

Cited by 26 publications

(8 citation statements)

References 53 publications

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“…This pesticide acts on the ligand-gated nAChRs ion channels after ingested by insects, which causes the conformational variation of receptor molecules to open the protein channels, resulting in the facilitation of extracellular Na + influx and intracellular K + efflux (Scheme ). ,, The overstimulation of motor neurons causes the insects dead. , Inspired by the interaction mechanism between imidacloprid and nAChRs, we constructed a neuron-like nanofluidic biosensor for highly sensitive and selective imidacloprid detection. The tyrosine as the recognition element was modified on the outer surface of the AAO barrier layer, which contains the subnanometer channels for carrier transport.…”

Section: Resultsmentioning

confidence: 99%

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Neuron-Inspired Nanofluidic Biosensors for Highly Sensitive and Selective Imidacloprid Detection

Yang

Zhou

et al. 2023

ACS Sens.

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Pesticides have caused concerns about food safety due to their residual effects in vegetables and fruits. Imidacloprid, as the frequently used neonicotinoid pesticide, could harm cardiovascular and respiratory function and cause reproductive toxicity in humans. Therefore, reliable methods for portable, selective, and rapid detection are desirable to develop. Herein, we report a neuron-inspired nanofluidic biosensor based on a tyrosine-modified artificial nanochannel for sensitively detecting imidacloprid. The functional tyrosine is modified on the outer surface of porous anodic aluminum oxide to rapidly capture imidacloprid through π–π interactions and hydrogen bonds. The integrated nanofluidic biosensor has a wide concentration range from 10–8 to 10–4 g/mL with an ultralow detection limit of 6.28 × 10–9 g/mL, which outperforms the state-of-the-art sensors. This work provides a new perspective on detecting imidacloprid residues as well as other hazardous pesticide residues in environmental and food samples.

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Section: Resultsmentioning

confidence: 99%

“…2,32,33 The overstimulation of motor neurons causes the insects dead. 34,35 Inspired by the interaction mechanism between imidacloprid and nAChRs, we constructed a neuron-like nanofluidic biosensor for highly sensitive and selective imidacloprid detection. The tyrosine as the Scheme 1.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Neuron-Inspired Nanofluidic Biosensors for Highly Sensitive and Selective Imidacloprid Detection

Yang

Zhou

et al. 2023

ACS Sens.

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“…Ultra-small nanostructure materials hold marked promise in analytical chemistry involving blue light emission due to their unique optical, physico-chemical, and electronic structures. [128][129][130][131] These nanostructure materials can be generated by various synthetic strategies. For example, blue-emitting BSA-Au NCs were synthesized by a microwave-assisted method.…”

Section: Blue Emissionmentioning

confidence: 99%

Perspectives of different colour‐emissive nanomaterials in fluorescent ink, LEDs, cell imaging, and sensing of various analytes

et al. 2022

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In the past 2 decades, multicolour light‐emissive nanomaterials have gained significant interest in chemical and biological sciences because of their unique optical properties. These materials have drawn much attention due to their unique characteristics towards various application fields. The development of novel nanomaterials has become the pinpoint for different application areas. In this review, the recent progress in the area of multicolour‐emissive nanomaterials is summarized. The different emissions (white, orange, green, red, blue, and multicolour) of nanostructure materials (metal nanoclusters, quantum dots, carbon dots, and rare earth‐based nanomaterials) are briefly discussed. The potential applications of different colour‐emissive nanomaterials in the development of fluorescent inks, light‐emitting diodes, cell imaging, and sensing devices are briefly summarized. Finally, the future perspectives of multicolour‐emissive nanomaterials are discussed.

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“…Therefore, developing an accurate method for the determination of trace amounts of imidacloprid is a great challenge. To date, many analytical methods have been used for imidacloprid assays, such as HPLC [5], electrochemistry [7], colorimetric [8], chemiluminescence [9], and fluorescence [4]. However, sensitive yet simple methods are still needed for real sample analysis.…”

Section: Introductionmentioning

confidence: 99%

A fluorescent magnetic nanosensor for imidacloprid based on the incorporation of polymer dots and Fe₃O₄ nanoparticles into the covalent organic framework

Haghighi Shishavan,

Amjadi,

Manzoori

2023

Luminescence

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A magnetic nanoprobe was designed for imidacloprid by encapsulating nonconjugated polymer dots (NCPDs) and Fe3O4 nanoparticles in the covalent organic framework (COF). The fluorescence intensity of the COF‐based nanocomposite is remarkably suppressed by imidacloprid. Since, the absorption spectrum of imidacloprid was close to the band gap of the NCPDs and due to the presence of nitro group (as an electron acceptor), the electrons can be easily transferred from the conduction band of NCPDs to the LUMO of imidacloprid, so the fluorescence quenching is more likely caused by the electron transfer process. The COF‐based nanosensor was used for the determination of imidacloprid in the linear range of 1.3‐130 nM with a detection limit of 1.2 nM. The high sensitivity of nanoprobe for imidacloprid is due to the combination of COF benefits (accumulation of the imidacloprid into the COF cavities) and the high adsorption ability of the Fe3O4 nanoparticles, which leads to further enrichment of imidacloprid. Magnetic nature of the nanocomposite enables the preconcentration and easy separation of analyte, and so reduces the matrix interference and lowers the detection limits. The practicality of this nanoprobe was confirmed by the quantification of imidacloprid in the wastewater and fruit juice samples.

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Facile synthesis of highly blue fluorescent tyrosine coated molybdenum oxide quantum dots for the detection of imidacloprid pesticide

Cited by 26 publications

References 53 publications

Neuron-Inspired Nanofluidic Biosensors for Highly Sensitive and Selective Imidacloprid Detection

Neuron-Inspired Nanofluidic Biosensors for Highly Sensitive and Selective Imidacloprid Detection

Perspectives of different colour‐emissive nanomaterials in fluorescent ink, LEDs, cell imaging, and sensing of various analytes

A fluorescent magnetic nanosensor for imidacloprid based on the incorporation of polymer dots and Fe₃O₄ nanoparticles into the covalent organic framework

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Facile synthesis of highly blue fluorescent tyrosine coated molybdenum oxide quantum dots for the detection of imidacloprid pesticide

Cited by 26 publications

References 53 publications

Neuron-Inspired Nanofluidic Biosensors for Highly Sensitive and Selective Imidacloprid Detection

Neuron-Inspired Nanofluidic Biosensors for Highly Sensitive and Selective Imidacloprid Detection

Perspectives of different colour‐emissive nanomaterials in fluorescent ink, LEDs, cell imaging, and sensing of various analytes

A fluorescent magnetic nanosensor for imidacloprid based on the incorporation of polymer dots and Fe3O4 nanoparticles into the covalent organic framework

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Product

Resources

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A fluorescent magnetic nanosensor for imidacloprid based on the incorporation of polymer dots and Fe₃O₄ nanoparticles into the covalent organic framework