A smartphone-integrated optosensing platform based on red-emission carbon dots for real-time detection of pyrethroids

Zhu, Xuecheng; Yuan, Xinyue; Han, Luxuan; Liu, Huilin; Sun, Baoguo

doi:10.1016/j.bios.2021.113460

Cited by 66 publications

(24 citation statements)

References 43 publications

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“…Typically, most CQDs are spherical nanoparticles; the average diameter is usually less than 10 nm [1]. In the past 10 years, CQDs have attracted great attention because of their superior properties of low toxicity, good biocompatibility and light resistance, easy surface modification, and environmental friendliness [2], providing good potential for use in applications, such as drug delivery, sensing, biological imaging, fluorescent inks, catalysis, and light-emitting diodes [3][4][5]. The obvious advantages of green chemistry have stimulated the great potential of CQDs in synthesis and application, making them an indispensable part of carbon nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Carbon Quantum Dots from Pomelo Peel as Fluorescence Probes for “Turn-Off–On” High-Sensitivity Detection of Fe3+ and L-Cysteine

Zhang

Wang

et al. 2022

Molecules

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This study designed a “turn-off–on” fluorescence analysis method based on carbon quantum dots (CQDs) to detect metal ions and amino acids in real sample systems. CQDs were derived from green pomelo peel via a one-step hydrothermal process. The co-doped CQDs with N and S atoms imparted excellent optical properties (quantum yield = 17.31%). The prepared CQDs could be used as fluorescent “turn-off” probes to detect Fe3+ with a limit of detection of 0.086 µM, a linear detection range of 0.1–160 µM, and recovery of 83.47–106.53% in water samples. The quenched CQD fluorescence could be turned on after adding L-cysteine (L-Cys), which allowed detection of L-Cys with a detection limit of 0.34 µM and linear range of 0.4–85 µM. Recovery of L-Cys in amino acid beverage was 87.08–122.74%. Visual paper-based testing strips and cellulose/CQDs composite hydrogels could be also used to detect Fe3+ and L-Cys.

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Section: Introductionmentioning

confidence: 99%

Carbon Quantum Dots from Pomelo Peel as Fluorescence Probes for “Turn-Off–On” High-Sensitivity Detection of Fe3+ and L-Cysteine

Zhang

Wang

et al. 2022

Molecules

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“…The interference of shortwave backgrounds was overcome by the introduction of functional groups resulting in the development of a red-emitting carbon point (RCD) with stable emission characteristics wherein the CD moves in the direction of red wavelengths [ 101 ]. Zhu et al prepared an on-site visualization and rapid detection RCD MIP sensor for the quantitative detection of λ-cyhalothrin using a smartphone ( Figure 8 ) [ 102 ].…”

Section: Sensor-based Methods For Pyrethroid Pesticide Determinationmentioning

confidence: 99%

“… Schematic illustration of the platform comprising RCD-based optosensing nanomaterials for the detection of LC ([ 102 ]). …”

Section: Figurementioning

confidence: 99%

Recent Advances in the Recognition Elements of Sensors to Detect Pyrethroids in Food: A Review

et al. 2022

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The presence of pyrethroids in food and the environment due to their excessive use and extensive application in the agriculture industry represents a significant threat to public health. Therefore, the determination of the presence of pyrethroids in foods by simple, rapid, and sensitive methods is warranted. Herein, recognition methods for pyrethroids based on electrochemical and optical biosensors from the last five years are reviewed, including surface-enhanced Raman scattering (SERS), surface plasmon resonance (SPR), chemiluminescence, biochemical, fluorescence, and colorimetric methods. In addition, recognition elements used for pyrethroid detection, including enzymes, antigens/antibodies, aptamers, and molecular-imprinted polymers, are classified and discussed based on the bioreceptor types. The current research status, the advantages and disadvantages of existing methods, and future development trends are discussed. The research progress of rapid pyrethroid detection in our laboratory is also presented.

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“…[175] Currently, researchers are paying more attention to the realtime monitoring of samples, whilst seeking to avoid the timeconsuming and cumbersome sample preparation routines commonly associated with conventional analytical instruments. [176] With an increasing demand for rapid detection speeds and high sensitivity, smartphones are now widely used for real-time monitoring as analyzers due to their portability and ease of operation (Figure 5e). [177] For example, Lu et al developed a light-sensing platform based on CDs, which integrated smartphone applications to detect 2,4-dichlorophenoxyacetic acid in real-time (Figure 5f ).…”

Section: Fluorescence Shift Mechanismmentioning

confidence: 99%

Carbon Dots in Bioimaging, Biosensing and Therapeutics: A Comprehensive Review

et al. 2022

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A smartphone-integrated optosensing platform based on red-emission carbon dots for real-time detection of pyrethroids

Cited by 66 publications

References 43 publications

Carbon Quantum Dots from Pomelo Peel as Fluorescence Probes for “Turn-Off–On” High-Sensitivity Detection of Fe3+ and L-Cysteine

Carbon Quantum Dots from Pomelo Peel as Fluorescence Probes for “Turn-Off–On” High-Sensitivity Detection of Fe3+ and L-Cysteine

Recent Advances in the Recognition Elements of Sensors to Detect Pyrethroids in Food: A Review

Carbon Dots in Bioimaging, Biosensing and Therapeutics: A Comprehensive Review

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