MoS<sub>2</sub> quantum-dots as a label-free fluorescent nanoprobe for the highly selective detection of methyl parathion pesticide

Fahimi-Kashani, Nafiseh; Rashti, Ali; Hormozi-Nezhad, M. Reza; Mahdavi, Vahideh

doi:10.1039/c6ay03147a

Cited by 48 publications

(23 citation statements)

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“…The red shift of the emission spectra is also observed because of the size effect. MoS 2 nanocrystal products have excellent dispersal, small size and PL properties in aqueous suspension and have encouraged biomedical applications [34][35][36]. The PL decay curve of MoS 2 nanocrystals is exhibited in Fig 2 (E).…”

Section: Plos Onementioning

confidence: 99%

Cost-effective synthesis of 2D molybdenum disulfide (MoS2) nanocrystals: An exploration of the influence on cellular uptake, cytotoxicity, and bio-imaging

et al. 2022

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Ultrasmall MoS2 nanocrystals have unique optoelectronic and catalytic properties that have acquired significant attraction in many areas. We propose here a simple and economical method for synthesizing the luminescent nanocrystals MoS2 using the hydrothermal technique. In addition, the synthesized MoS2 nanocrystals display photoluminescence that is tunable according to size. MoS2 nanocrystals have many advantages, such as stable dispersion, low toxicity and luminescent characteristics, offering their encouraging applicability in biomedical disciplines. In this study, human lung cancer epithelial cells (A549) are used to assess fluorescence imaging of MoS2 nanocrystals. MTT assay, trypan blue assay, flow cytometry and fluorescence imaging results have shown that MoS2 nanocrystals can selectively target and destroy lung cancer cells, especially drug-resistant cells (A549).

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Section: Plos Onementioning

confidence: 99%

Cost-effective synthesis of 2D molybdenum disulfide (MoS2) nanocrystals: An exploration of the influence on cellular uptake, cytotoxicity, and bio-imaging

et al. 2022

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“…In 2017, Kashani et al proposed fluorescence method by using molybdenum disulfide (MoS 2 )-QDs [ 176 ]. Metal nanoparticles-based SERS method has also been explored [ 177 , 178 ]. AuNPs with excellent reproducibility and stability were used to generate the substrate.…”

Section: Various Classes Of Insecticides Detection By Optical Sensorsmentioning

confidence: 99%

Recent Advances on Detection of Insecticides Using Optical Sensors

Fauzi

Fen

Omar

et al. 2021

Sensors

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Insecticides are enormously important to industry requirements and market demands in agriculture. Despite their usefulness, these insecticides can pose a dangerous risk to the safety of food, environment and all living things through various mechanisms of action. Concern about the environmental impact of repeated use of insecticides has prompted many researchers to develop rapid, economical, uncomplicated and user-friendly analytical method for the detection of insecticides. In this regards, optical sensors are considered as favorable methods for insecticides analysis because of their special features including rapid detection time, low cost, easy to use and high selectivity and sensitivity. In this review, current progresses of incorporation between recognition elements and optical sensors for insecticide detection are discussed and evaluated well, by categorizing it based on insecticide chemical classes, including the range of detection and limit of detection. Additionally, this review aims to provide powerful insights to researchers for the future development of optical sensors in the detection of insecticides.

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“…Nanosensors are sensors used to detect the presence of chemical species on the nanoscale. Fluorescent nanomaterials such as inorganic quantum dots (QDs) [ 19 , 20 , 21 ] perovskite quantum dots (PQDs) [ 22 , 23 , 24 ], graphene quantum dots (GQDs) [ 25 , 26 , 27 , 28 ] are employed as nanosensors for environmental monitoring. Moreover, other nanostructures are used as fluorescent probes for pollutant detection such as noble metal nanoclusters (MNCs) [ 29 , 30 , 31 , 32 ] or functionalized nanoparticles [ 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence

Burratti

Ciotta

et al. 2021

Nanomaterials

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Heavy metal ions and pesticides are extremely dangerous for human health and environment and an accurate detection is an essential step to monitor their levels in water. The standard and most used methods for detecting these pollutants are sophisticated and expensive analytical techniques. However, recent technological advancements have allowed the development of alternative techniques based on optical properties of noble metal nanomaterials, which provide many advantages such as ultrasensitive detection, fast turnover, simple protocols, in situ sampling, on-site capability and reduced cost. This paper provides a review of the most common photo-physical effects impact on the fluorescence of metal nanomaterials and how these processes can be exploited for the detection of pollutant species. The final aim is to provide readers with an updated guide on fluorescent metallic nano-systems used as optical sensors of heavy metal ions and pesticides in water.

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MoS₂ quantum-dots as a label-free fluorescent nanoprobe for the highly selective detection of methyl parathion pesticide

Abstract: A reliable, simple, and sensitive fluorescence method was developed for the determination of methyl parathion (MP) in rice using MoS2 quantum dots (QDs).

Cited by 48 publications

References 50 publications

Cost-effective synthesis of 2D molybdenum disulfide (MoS2) nanocrystals: An exploration of the influence on cellular uptake, cytotoxicity, and bio-imaging

Cost-effective synthesis of 2D molybdenum disulfide (MoS2) nanocrystals: An exploration of the influence on cellular uptake, cytotoxicity, and bio-imaging

Recent Advances on Detection of Insecticides Using Optical Sensors

Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence

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MoS2 quantum-dots as a label-free fluorescent nanoprobe for the highly selective detection of methyl parathion pesticide

Abstract: A reliable, simple, and sensitive fluorescence method was developed for the determination of methyl parathion (MP) in rice using MoS2 quantum dots (QDs).

Cited by 48 publications

References 50 publications

Cost-effective synthesis of 2D molybdenum disulfide (MoS2) nanocrystals: An exploration of the influence on cellular uptake, cytotoxicity, and bio-imaging

Cost-effective synthesis of 2D molybdenum disulfide (MoS2) nanocrystals: An exploration of the influence on cellular uptake, cytotoxicity, and bio-imaging

Recent Advances on Detection of Insecticides Using Optical Sensors

Metal Nanostructures for Environmental Pollutant Detection Based on Fluorescence

Contact Info

Product

Resources

About

MoS₂ quantum-dots as a label-free fluorescent nanoprobe for the highly selective detection of methyl parathion pesticide