Carbon quantum dots: Preparation, optical properties, and biomedical applications

Materials Today Advances, Journal Year: 2023, Volume and Issue: 18, P. 100376 - 100376

Published: May 3, 2023

As an excellent fluorescent nanomaterial, carbon quantum dots (CQDs) have the properties of small molecular weight, particle size, high fluorescence stability, no optical flicker, wide excitation spectrum, continuous, long adjustable emission wavelength, good biocompatibility and low toxicity. At present, it has been widely used in biological detection, vivo vitro imaging, drug delivery diagnostic drugs. This review presents a broad overview recent progress synthesis, properties, biomedical applications CQDs. The synthesis methods CQDs are first introduced, followed by extensive discussion its purification, surface functionalization stability. Furthermore, presented, with emphasis on photoluminescence mechanism relationship between conditions properties. review's much focus is given to CQDs, including imaging (in imaging) (targeted therapy, photodynamic photothermal immunological gene therapy). Finally, we cover key issues future prospects/advances that still deal sector as well possible solutions.

Language: Английский

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Lignin-based carbon quantum dots with high fluorescence performance prepared by supercritical catalysis and solvothermal treatment for tumor-targeted labeling

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(2)

Published: March 23, 2023

Language: Английский

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Construction of eco-friendly dual carbon dots ratiometric fluorescence probe for highly selective and efficient sensing mercury ion

Journal of Environmental Sciences, Journal Year: 2024, Volume and Issue: 148, P. 1 - 12

Published: Jan. 21, 2024

Language: Английский

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Multicolor fluorescent/room temperature phosphorescent carbon dot composites for information encryption and anti-counterfeiting

Applied Surface Science, Journal Year: 2022, Volume and Issue: 613, P. 155945 - 155945

Published: Dec. 5, 2022

Language: Английский

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A smartphone-assisted down/up-conversion dual-mode ratiometric fluorescence sensor for visual detection of mercury ions and l-penicillamine

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 856, P. 159073 - 159073

Published: Sept. 27, 2022

Language: Английский

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Nitrogen-doped carbon dots with bright fluorescence for highly sensitive detection of Fe3+ in environmental waters

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2023, Volume and Issue: 293, P. 122414 - 122414

Published: Jan. 26, 2023

Language: Английский

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Enhanced dual fluorescence quenching of red and blue emission carbon dots by copper dimethyldithiocarbamate for selective ratiometric detection of ziram in foodstuff and water samples

Microchemical Journal, Journal Year: 2024, Volume and Issue: 204, P. 111092 - 111092

Published: June 29, 2024

Language: Английский

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Fluorometric detection of copper and imidacloprid using nitrogen‐doped graphitic carbon dots: A promising method for environmental monitoring

Luminescence, Journal Year: 2024, Volume and Issue: 39(8)

Published: Aug. 1, 2024

Abstract Pesticides in environmental samples pose significant risks to ecosystems and human health since they require precise efficient detection methods. Imidacloprid (IMI), a widely used neonicotinoid insecticide, exemplifies these hazards due its potential toxicity. This study addresses the urgent need for improved monitoring of such contaminants by introducing novel fluorometric method detecting IMI using nitrogen‐doped graphite carbon dots (N‐GCDs). The sensor operates quenching fluorescence through interaction Cu 2+ ions with N‐GCDs. Subsequently, binds imidazole group, chelates , restores alternating behavior allows accurate identification both IMI. exhibits linear ranges 20–100 nM 10–140 μg/L IMI, limits 18 1.2 μg/L, respectively. high sensitivity this enables real‐world samples, which underscores practical use agricultural safety.

Language: Английский

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Microfluidic preparation of optical sensors for biomedical applications

Smart Medicine, Journal Year: 2023, Volume and Issue: 2(1)

Published: Feb. 1, 2023

Abstract Optical biosensors are platforms that translate biological information into detectable optical signals, and have extensive applications in various fields due to their characteristics of high sensitivity, specificity, dynamic sensing, etc. The development sensing materials is an important part sensors. In this review, we emphasize the role microfluidic technology preparation application derived sensors biomedical field. We first present some common mechanisms functional responsive involved. Then, describe these by microfluidics. Afterward, enumerate as disease diagnosis, drug evaluation, organ‐on‐a‐chip. Finally, discuss challenges prospects

Language: Английский

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Selective fluorescent probe for sensitive determination of bisphenol A based on molecularly imprinted polymers decorated carbon dots derived from citric acid and ethylenediamine

Chemosphere, Journal Year: 2023, Volume and Issue: 324, P. 138303 - 138303

Published: March 3, 2023

Language: Английский

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