A novel carbon quantum dot-based fluorescent nanosensor for selective detection of flumioxazin in real samples

Panda, Snigdharani; Jadav, Arpita; Panda, Niranjan; Mohapatra, Sasmita

doi:10.1039/c7nj04358a

Cited by 34 publications

(13 citation statements)

References 43 publications

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“…Some of them can also act as theragnostic agents or as cell-labelling agents. Although numerous fluorescent dyes have already been developed, there is still a lack of biomaterials which are non-cytotoxic, water soluble and characterized by strong photoluminescence and reasonable stability [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Chitosan-Based Carbon Quantum Dots for Biomedical Applications: Synthesis and Characterization

et al. 2019

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Rapid development in medicine and pharmacy has created a need for novel biomaterials with advanced properties such as photoluminescence, biocompability and long-term stability. The following research deals with the preparation of novel types of N-doped chitosan-based carbon quantum dots. Nanomaterials were obtained with simultaneous nitrogen-doping using biocompatible amino acids according to Green Chemistry principles. For the carbon quantum dots synthesis chitosan was used as a raw material known for its biocompability. The nanomaterials obtained in the form of lyophilic colloids were characterized by spectroscopic and spectrofluorimetric methods. Their quantum yields were determined. Additionally the cytotoxicity of the prepared bionanomaterials was evaluated by XTT (2,3-Bis-(2-methoxy-4-nitro5-sulfophenyl)-2H-tetrazolium-5-carboxanilide salt) method. Our results confirmed the formation of biocompatible quantum dots with carbon cores exhibiting luminescence in visible range. Performed studies showed that modification with lysine (11.5%) and glutamic acid (7.4%) had a high impact on quantum yield, whereas functionalization with amino acids rich in S and N atoms did not significantly increase in fluorescence properties. XTT assays as well as morphological studies on human dermal fibroblasts confirmed the lack of cytotoxicity of the prepared bionanomaterials. The study shows chitosan-based quantum dots to be promising for biomedical applications such as cell labelling, diagnostics or controlled drug delivery and release systems.

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Section: Introductionmentioning

confidence: 99%

Chitosan-Based Carbon Quantum Dots for Biomedical Applications: Synthesis and Characterization

et al. 2019

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“…A hydrothermal technique was used to make CQDs from sucrose and ascorbic acid. [76] The precursor solution is enclosed inside a Teflon-lined autoclave and heated at 100 to 220 °C for hours in a typical method. To obtain nano-sized carbon dots, large particles are cleared.…”

Section: Hydrothermal Synthesismentioning

confidence: 99%

“…Due to its low cost, affordable machinery, simple one‐step preparation, minimal energy consumption, and environmentally benign reaction process, it is one of the easiest and most appealing technologies for manufacturing CDs. A hydrothermal technique was used to make CQDs from sucrose and ascorbic acid [76] . The precursor solution is enclosed inside a Teflon‐lined autoclave and heated at 100 to 220 °C for hours in a typical method.…”

Section: Synthesis Of Carbon Quantum Dotsmentioning

confidence: 99%

A Review on Carbon Quantum Dot Based Semiconductor Photocatalysts for the Abatement of Refractory Pollutants

et al. 2022

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Photocatalysis is a green approach frequently utilised to eliminate a variety of environmentally hazardous refractory pollutants. Accordingly, the modification of semiconductor photocatalysts with Carbon Quantum Dots (CQDs) is of great importance for the treatment of such pollutants due to their attractive physical and chemical properties. CQDs are a perfect candidate to handle photocatalysts of high‐performance since they operate as co‐catalysts and as visible light harvesters. The higher separation rate of electron‐hole pairs in the photocatalytic system is attributable to better photodegradation efficiency. This review classifies CQD based photocatalysts as pure, doped and composite materials and discusses the specific advantages of CQDs in visible light‐driven photocatalysis. In this work, the versatile roles of CQDs in CQD‐based photocatalytic systems are thoroughly discussed and summarised.

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“…As such, intensive effort has been devoted to synthesizing CDs with specic heteroatom or functional groups through doping or post modication to achieve selective interactions. [21][22][23][24][25] b-Cyclodextrin (b-CD) is a cyclic oligosaccharide composed of seven D-galactose units linked by a-1,4-glycosidic bonds thus obtaining a hydrophilic outer surface and a hydrophobic inner cavity. The unique molecular structure of b-CD allows some compounds to enter the cavity completely or partially and form host-guest inclusion complexes, which has been proved to be effective for constructing highly selective uorescence sensors in several studies.…”

Section: Introductionmentioning

confidence: 99%

Novel β-cyclodextrin doped carbon dots for host–guest recognition-assisted sensing of isoniazid and cell imaging

Zhang

Gong

et al. 2022

RSC Adv.

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A novel carbon quantum dot-based fluorescent nanosensor for selective detection of flumioxazin in real samples

Abstract: Herein, a carbon quantum dot-based highly selective luminescent probe has been designed for the detection of the pesticide flumioxazin via the alkyne azide click reaction.

Cited by 34 publications

References 43 publications

Chitosan-Based Carbon Quantum Dots for Biomedical Applications: Synthesis and Characterization

Chitosan-Based Carbon Quantum Dots for Biomedical Applications: Synthesis and Characterization

A Review on Carbon Quantum Dot Based Semiconductor Photocatalysts for the Abatement of Refractory Pollutants

Novel β-cyclodextrin doped carbon dots for host–guest recognition-assisted sensing of isoniazid and cell imaging

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