A portable visual coffee ring based on carbon dot sensitized lanthanide complex coordination to detect bisphenol A in water

Li, Yixiao; Qin, Min; Wang, Yunfei; Zhuang, Xuming; Hao, Xiaowen; Tian, Chunyuan; Luan, Feng

doi:10.1039/d2ra00039c

Cited by 9 publications

(7 citation statements)

References 50 publications

(51 reference statements)

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“…In Figure F, the general method is not sensitive enough to the target concentration. As shown in Table S3, we compared recent reported work on visual fluorescent sensing based on the coffee-ring effect. − The results showed that the proposed strategy was more recognizable in visualization. Figure S6 demonstrates the good reproducibility of our method.…”

Section: Resultsmentioning

confidence: 99%

Dual-Mode Undistorted Visual Fluorescent Sensing Strategy through Manipulating the Coffee-Ring Effect on Microfluidic Paper-Based Chip

Dong

et al. 2023

Anal. Chem.

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To overcome the insufficient sensitivity due to distortion of the fluorescent images by mobile devices, we first developed a novel dual-mode strategy for undistorted visual fluorescent sensing on μPAD by technically manipulating the coffee-ring effect of the fluid sample. Based on the manipulating coffee-ring effect, we divided the horizontal direction of the resulting fluorescence image into 600 pixels and obtained more accurate quantitative information to avoid image distortion. The bovine serum albumin–stabilized gold nanoclusters–copper ion complex was used as the fluorescent probe, combined with a small imaging box and a smartphone, to achieve a rapid testing of histidine in human urine. The output image was analyzed in dual mode: RGB numerical analysis in pixel units and the direct measurement of the fluorescent strips length (limit of detection (LOD) is 0.021 and 0.5 mM, respectively), and improved antidistortion for visual fluorescent sensing. This strategy can overcome the distortion of a smartphone-visualized fluorescent image and shows great potential for rapid and convenient analysis.

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Section: Resultsmentioning

confidence: 99%

Dual-Mode Undistorted Visual Fluorescent Sensing Strategy through Manipulating the Coffee-Ring Effect on Microfluidic Paper-Based Chip

Dong

et al. 2023

Anal. Chem.

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“…Bisphenol-A, an important industrial reagent in the production of plastics, can act as an effective antenna ligand for europium cations. This underlies the importance of the production of a highly sensitive sensor material based on a composite of carbon quantum dots and europium 5'-adenosine monophosphate [70].…”

Section: Sensory Resonse Smentioning

confidence: 99%

Luminescent Materials with Turn-on and Ratiometric Sensory Response Based on Coordination Compounds of Lanthanides

Pettinari¹,

Дроздов²,

Belousov³

2023

Rare Earth Elements - Emerging Advances, Technology Utilization, and Resource Procurement

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Luminescent lanthanide complexes serve as a unique set of tools for creating sensory materials. The most significant types of sensory response in such materials are the turn-on/off response, when the analyte causes an increase or decrease in the emission intensity, respectively, as well as the ratiometric response, which manifests itself as a change in the ratio of luminescence intensities at different wavelengths. In this paper, we consider two of the most technologically advanced types of luminescent sensor materials based on lanthanide compounds—“turn on” and ratiometric sensors. The production of such materials is not only of importance per their possible application but is especially interesting from a fundamental point of view, since their design requires the implementation of non-trivial solutions.

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“…Researchers have been working on developing a portable fluorescent detection method for practical environmental monitoring, and the fluorescent strip method is one of the most popular methods due to its advantages of simplicity, economy, and convenience. 45,46 Complex 6 can selectively recognize Cr (VI), and the color of the test strip changes from yellow-green to blue-purple, indicating that the fluorescent test strip based on complex 6 is suitable for sensing Cr(VI) ions.…”

Section: Fluorescent Test Strips Of Complex 6 For Sensing Cr(vi)mentioning

confidence: 99%

Syntheses and fluorescence properties of lanthanide isostructural complexes derived from aspartic acid

et al. 2023

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A portable visual coffee ring based on carbon dot sensitized lanthanide complex coordination to detect bisphenol A in water

Abstract: A ratiometric portable visual fluorescence sensor of bisphenol A was developed based on carbon dot sensitized lanthanide complex coordination.

Cited by 9 publications

References 50 publications

Dual-Mode Undistorted Visual Fluorescent Sensing Strategy through Manipulating the Coffee-Ring Effect on Microfluidic Paper-Based Chip

Dual-Mode Undistorted Visual Fluorescent Sensing Strategy through Manipulating the Coffee-Ring Effect on Microfluidic Paper-Based Chip

Luminescent Materials with Turn-on and Ratiometric Sensory Response Based on Coordination Compounds of Lanthanides

Syntheses and fluorescence properties of lanthanide isostructural complexes derived from aspartic acid

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