Ratiometric fluorescence determination of carbon disulfide in water using surface functionalized carbon dots

Dai, Ruoyu; Chen, Xipao; Hu, Yaoping

doi:10.1016/j.snb.2023.133499

Cited by 22 publications

(4 citation statements)

References 45 publications

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“…[12][13][14][15][16] Therefore, carbon dots are widely used as fluorescent probes for pollutant detection. Dai's group [17] reported on surface functionalization of carbon dots for the detection of CS 2 in the environment. Radhakrishnan's group [18] reported a dual-mode detection of arsenic (III) and ferrous ions.…”

Section: Introductionmentioning

confidence: 99%

Rational Design of Carbon Dots Featuring High Spectral Overlap with Analyte for Effective Detection of Metronidazole via Inner Filter Effect

Zhuang,

Li,

2024

Advanced Sensor Research

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The development of fluorescent probe with high spectral overlap with analyte is favorable for the sensing applications via inner filter effect, which requires facile tuning of their structure and photophysical properties. Herein, the rational design of blue emissive carbon dots (B‐CDs) is reported for effective detection of metronidazole (MNZ) in both deionized water and real water samples. The design strategy is based on the elaborate choice of precursors that allows precise control over the nitrogen‐doping degree and graphitization content of B‐CDs. As a result, the as‐prepared B‐CDs exhibit a specific and quick fluorescence quenching response to MNZ via the IFE mechanism because of their good spectral overlap in absorbance. This approach shows a broad linear range (0.5–160 µm), low detection limit (0.1 µm), and moderate selectivity, suggesting its promise for practical applications in environmental sensing.

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Section: Introductionmentioning

confidence: 99%

Rational Design of Carbon Dots Featuring High Spectral Overlap with Analyte for Effective Detection of Metronidazole via Inner Filter Effect

Zhuang,

Li,

2024

Advanced Sensor Research

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“…Thus, the development of a ratiometric fluorescence sensor is extremely desirable. Dai et al . designed a novel sensing platform composed of blue and yellow emissive carbon dots that displayed a ratiometric fluorescence response toward CS 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Dai et al. 25 designed a novel sensing platform composed of blue and yellow emissive carbon dots that displayed a ratiometric fluorescence response toward CS 2 . Li et al 26 developed iron, cobalt, and nitrogen-codoped CDs as a dual-signal biosensor to detect uric acid by a fluorescence and colorimetry method.…”

Section: Introductionmentioning

confidence: 99%

Bismuth, Nitrogen-Codoped Carbon Dots as a Dual-Read Optical Sensing Platform for Highly Sensitive, Ultrarapid, Ratiometric Detection of Doxorubicin

Du,

Gao,

Zhang

et al. 2023

ACS Omega

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Doxorubicin (DOX) is a potent anticancer drug, but it has side effects on normal tissues, particularly myocardial cells. Therefore, it is crucial to detect the DOX concentration in body fluids for effective clinical treatment. In this work, N,Bi-codoped CDs (Bi,N-CDs) were synthesized through a one-step hydrothermal method to carbonize the raw materials of 2,4-dinitroaniline and bismuth nitrate. The resulting Bi,N-CDs showed a reduced emission at 490 nm and an enhanced emission at 590 nm in the presence of DOX. The ratio of fluorescence (FL) intensity (F 590 /F 490 ) was found to be a reliable indicator of DOX concentration, ranging from 0.05 to 30 μM and 40−200 μM, with detection limits (LOD) of 34 and 24 nM, respectively. A ratiometric fluorescence nanoprobe was established for highly selective and sensitive detection of DOX using a specific electrostatic interaction and inner filter effect between Bi,N-CDs and DOX. Meanwhile, Bi,N-CDs exhibited a distinct color change ranging from yellow to orange-red when exposed to DOX, allowing for a colorimetric method to measure DOX levels in the range of 0.05−30 μM, with a detection limit of 169 nM. The probe was triumphantly used to monitor DOX in actual samples via a dual-mode optical sensing strategy. This study contributes to the development of heteroatom-doped CDs and expands their potential applications for detecting biological samples.

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“…Ratiometric fluorescent probes can effectively avoid the influence of external factors and improve the determination accuracy . Ratiometric fluorescent probes based on CDs have been prepared, , but no studies have assessed the utility of the ratiometric fluorescent probe to determine Cu 2+ and Fe 2+ . Many kinds of sensors based on heavy metal ions have gained popularity because of their low cost and avoidance of interference factors. – …”

Section: Introductionmentioning

confidence: 99%

Synthesis of pH-Sensitive Nitrogen-Doped Carbon Dots with Biological Imaging Function and Their Application in Cu²⁺ and Fe²⁺ Determination by Ratiometric Fluorescent Probes

Guo,

Li,

Wang

et al. 2023

ACS Omega

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pH-sensitive nitrogen-doped carbon dots (N-CDs) were synthesized using immature seeds of elm trees as a carbon source and ethylenediamine as a coreactant through a facile one-step hydrothermal method. The N-CDs were characterized using fluorescence spectroscopy, fluorescence lifetime, ultraviolet–visible absorption, X-ray photoelectron spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy, as well as transmission electron microscopy. The N-CDs displayed excellent fluorescence properties and responded to pH changes. The N-CDs exhibited low toxicity and good biocompatibility and had the potential to be used for the biological imaging of HeLa cells and mung bean sprouts. Utilizing the mechanism of fluorescence resonance energy transfer, ratiometric fluorescent probes were prepared by simple mixing of N-CDs and fluorexon in a Britton–Robinson buffer solution. The ratiometric fluorescent probe was used to detect Cu2+ and Fe2+. The linear equations were R Cu = −0.0591[Q] + 3.505 (R 2 = 0.992) and R Fe = −0.0874[Q] + 3.61 (R 2 = 0.999). The corresponding limits of detection were 0.5 and 0.31 μM, respectively. The good results had been obtained in the actual samples detection.

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Ratiometric fluorescence determination of carbon disulfide in water using surface functionalized carbon dots

Cited by 22 publications

References 45 publications

Rational Design of Carbon Dots Featuring High Spectral Overlap with Analyte for Effective Detection of Metronidazole via Inner Filter Effect

Rational Design of Carbon Dots Featuring High Spectral Overlap with Analyte for Effective Detection of Metronidazole via Inner Filter Effect

Bismuth, Nitrogen-Codoped Carbon Dots as a Dual-Read Optical Sensing Platform for Highly Sensitive, Ultrarapid, Ratiometric Detection of Doxorubicin

Synthesis of pH-Sensitive Nitrogen-Doped Carbon Dots with Biological Imaging Function and Their Application in Cu²⁺ and Fe²⁺ Determination by Ratiometric Fluorescent Probes

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Ratiometric fluorescence determination of carbon disulfide in water using surface functionalized carbon dots

Cited by 22 publications

References 45 publications

Rational Design of Carbon Dots Featuring High Spectral Overlap with Analyte for Effective Detection of Metronidazole via Inner Filter Effect

Rational Design of Carbon Dots Featuring High Spectral Overlap with Analyte for Effective Detection of Metronidazole via Inner Filter Effect

Bismuth, Nitrogen-Codoped Carbon Dots as a Dual-Read Optical Sensing Platform for Highly Sensitive, Ultrarapid, Ratiometric Detection of Doxorubicin

Synthesis of pH-Sensitive Nitrogen-Doped Carbon Dots with Biological Imaging Function and Their Application in Cu2+ and Fe2+ Determination by Ratiometric Fluorescent Probes

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Synthesis of pH-Sensitive Nitrogen-Doped Carbon Dots with Biological Imaging Function and Their Application in Cu²⁺ and Fe²⁺ Determination by Ratiometric Fluorescent Probes