Enhanced fluorescent sensing probe via PbS quantum dots functionalized with gelatin for sensitive determination of toxic bentazon in water samples

Marahel, Farzaneh; Niknam, Leila

doi:10.1080/01480545.2021.1963761

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…The unexpected strong bright blue fluorescence emission at 475 nm is emitted from the H−G−PbS QD complexes because in certain conditions when PbS QDs form a complex with other organic compounds, they could emit visible fluorescence under suitable exciting lights. 59,60 Moreover, the control experiment was conducted to verify the proposed PbS QD formation mechanism, as shown in Figure S19. In the same condition, after the addition of Pb 2+ to the S 2− solution, H + S 2− solution, or G + S 2− solution, respectively, the system could not emit similar fluorescence emission.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…These results indicated that under the control of the H–G–S supramolecular system, the S 2– was not leached into the solution and Pb 2+ could not form PbS precipitates with S 2– ; however, Pb 2+ bound to S 2– in the H–G–S supramolecular system to in situ form nanocrystals, which induces the in situ transformation of H–G–S nanorods into PbS QDs. , Meanwhile, the obtained PbS QDs complexed with H–G . The unexpected strong bright blue fluorescence emission at 475 nm is emitted from the H–G –PbS QD complexes because in certain conditions when PbS QDs form a complex with other organic compounds, they could emit visible fluorescence under suitable exciting lights. , …”

Section: Resultsmentioning

confidence: 99%

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Detection of Lead(II) in Living Cells by Inducing the Transformation of a Supramolecular System into Quantum Dots

Huang

Liu

et al. 2022

ACS Sustainable Chem. Eng.

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Due to the high toxicity of Pb2+, efficient in situ detection of Pb2+ is very important. Herein, a new approach for in situ probing of Pb2+ by inducing supramolecular systems to form fluorescent quantum dots (QDs) is demonstrated. At the beginning of this work, a new tetra-pillar[5]arene derivative was designed as host H. The H and an amphiphilic guest G could assemble into supramolecular systems in aqueous solution and form nanoparticles without fluorescence emission. Interestingly, S2– could crosslink the nanoparticles, changing them into fluorescent nanorods. Notably, the Pb2+ could induce these nanorods to in situ transform into PbS QDs; meanwhile, the system showed distinct fluorescent changes, and the fluorescence quantum yield of the system showed a dramatic increase. This in situ PbS QD formation process could be applied in efficient Pb2+ sensing in water and living cells. This research also provides a simple and feasible way to detect heavy metal ions by in situ construction of fluorescent nanomaterials and QDs through a supramolecular approach.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Detection of Lead(II) in Living Cells by Inducing the Transformation of a Supramolecular System into Quantum Dots

Huang

Liu

et al. 2022

ACS Sustainable Chem. Eng.

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“…Cadmium quantum dots can also be used in conjugation with any rare earth metals of choice (Chu, H 2021) and ii) Pesticides with -Cl groups tend to have a higher binding affinity with the quantum dot which in turn may lead to higher chance of degradation of the pesticide (Sahoo, D 2018). Two recent reports suggested that functionalization of PbS quantum dots with gelatin has successfully lead to the detection of notorious pesticides like bentazon at a range of 0.05-200 ng/mL (Marahel, F 2022). Similarly another report based on the same surface functionalization of PbS quantum dot with gelatin showed a pH dependant notable nanosensing of diazinon at relatively low detection limit (Jamalipour, P 2022).…”

Section: Carbon Quantum Dotsmentioning

confidence: 99%

Frontiers in Biotechnology: Emerging Approaches And Strategies

2024

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Recent years have seen fast paced development in the field of biotechnology facilitated by genetic engineering, synthetic biology, and computational tools. This article is an introduction to the world of biotechnology beyond today’s reality; a new paradigm that unfolds, that reshapes industries and approaches, and provides novel strategies. King of these lands may be the CRISPR-Cas9 gene-editing tech that has changed our genetic modification game for the better. As a precise and powerful tool for targeted genome editing, this system has broad applications in therapeutic interventions, agricultural improvements, and scientific research. Furthermore, synthetic biology has expanded the range of possible outputs by producing purposefully built biological systems, thus creating engineered microbes, enzymes and metabolic pathways that can be used for health care industry premises as well as energy production and environmental concerns. Another high-growth field is computational biotechnology, using bioinformatics, machine learning and high-performance computing to process and explain huge amounts of biological data. Such an interdisciplinary approach is important to unravel complex biology, discover new drugs and improve industrial processes. In addition to this, bioprocessing techniques (i.e. fermentation and bioreactor design) are continuously improved equipping us with the technology needed for making biotherapeutics, biofuels or other high value biomolecules in an economic and environmentally benign way. With ongoing progress in the field of biotechnology, it becomes essential to address bioethical, regulatory, and societal issues through efforts coming from an integration between researchers, industries, and policymakers. The frontiers of biotechnology are filled with promise for improvements in human health, the environment and economic growth as we find new ways to leverage rapidly evolving tools and strategies.

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Application of electrochemical sensor based on nanosheets G-C3N4/CPE by square wave anodic stripping voltammetry method to measure residual amounts of toxic bentazon in water samples

et al. 2022

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Enhanced fluorescent sensing probe via PbS quantum dots functionalized with gelatin for sensitive determination of toxic bentazon in water samples

Cited by 10 publications

References 32 publications

Detection of Lead(II) in Living Cells by Inducing the Transformation of a Supramolecular System into Quantum Dots

Detection of Lead(II) in Living Cells by Inducing the Transformation of a Supramolecular System into Quantum Dots

Frontiers in Biotechnology: Emerging Approaches And Strategies

Application of electrochemical sensor based on nanosheets G-C3N4/CPE by square wave anodic stripping voltammetry method to measure residual amounts of toxic bentazon in water samples

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