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Progress in Chemistry
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Figure/Table detail
Research Progress of Carbon Dots as Fluorescent Probes in Environmental Monitoring
Congyin Zhang, Kuiyu Yi, Jia Feng, Hongwei Shi
Progress in Chemistry
, DOI:
10.7536/PC20250625
Fig. 1
Methods for synthesizing CDs
[
23
]
Other figure/table from this article
Fig. 2
A scheme showing PET from the CDs to the quencher and target analyte
[
23
]
Fig. 3
Optical properties of the FNCDs probe. （a） Abs, Ex, and Em spectra (inset: visible and UV light images);（b） 3D fluorescence spectrum
[
49
]
Fig. 4
Fluorescence detection of Cu
2+
using PC-CDs.（a） Fluorescence emission spectra of PC-CDs with the addition of different concentrations of Cu
2+
;（b） relationship between the fluorescence intensity of PC-CDs and the concentration of Cu
2+
；（c） calibration curve of F
0
/F versus the concentration of Cu
2+
[
50
]
Fig. 5
Detection performance of the N-CQDs probes for OTC. Fluorescence emission spectra of (a) ON-CQDs and (b) WN-CQDs with the addition of different concentrations of OTC. Insets: the corresponding calibration curves of fluorescence intensity versus OTC concentration
[
61
]
Table 1
Comparison of detection performance in fluorescence quenching carbon dots
Fig. 6
Dual-mode visual detection of Pb
2+
using the GA-DMF CDs-based paper sensor.（a， b） Colorimetric response under daylight；（c， d） fluorimetric response under UV light
[
70
]
Fig. 7
Fluorescence enhancement response and dual-mode detection of FA by NCQDs. （a） Fluorescence emission spectra of NCQDs solution with increasing FA concentrations; (b) the quantitative relationship between fluorescence intensity and FA concentration; （c） fluorescence lifetime decay curves of NCQDs before and after reaction with FA；（d） schematic diagram of the NCQDs/PVA composite film for FA gas sensing；（e~g） fluorescence microscope images of the film under ambient air, water vapor, and FA gas；（h）fluorescence reversibility upon switching from FA gas back to air environmen
[
79
]
Table 2
Comparison of detection performance in fluorescence enhancement carbon dot
Fig. 8
（a） Fluorescence spectra of CDs and CCM (20 μmol/L) mixed with various concentrations of ClO⁻ (0-1500 μmol/L);（b） linear relationship between the ClO⁻concentration and fluorescence intensity (F
435
/F
540
)
[
88
]
Fig. 9
Schematic illustration of the fluorescent sensor based on CDs and AuNPs for carbaryl detection through the IFE
[
97
]
Fig. 10
Low concentration of glyphosate sensing based on ratiometric measurements
[
98
]
Fig. 11
Analytical performance of the CDs@Eu-AMP ratiometric fluorescence probe：（a） fluorescence spectral response of CDs@Eu-AMP to BPA concentration；（b） linear relationship between F
439
/F
623
and BPA concentration
[
99
]
Fig. 12
Comparison of coffee-ring test strips based on（a） Eu-AMP，（b） CDs@Eu-AMP， and（c） CDs at different BPA concentrations
[
99
]
Fig. 13
Visual and quantitative detection of Thiram：（a~c） fabrication and working mechanism of the 3D-printed smartphone sensing platform；（d， e） fluorescence response images and quantitative calibration curves
[
101
]
Fig. 14
Smartphone-based biosensor (SBS): portable device and optical design.（a） Design diagram and photograph of the SBS；（b） user interface and operational flowchart of the custom SBS-App； parts assembly drawing of the SBS（c） and internal light path schematic
[
102
]
Table 3
Comparison of detection performance for ratiometric fluorescent carbon dots
Table 3
Comparison of Detection Performance for Ratiometric Fluorescent Carbon Dots
