Recent advances in molecular imprinting-based ratiometric fluorescence sensors

Wen, Yuhao; Sun, Dani; Yu, Jialuo; Qi, Ji; Zhang, Zhong; Song, Zhihua; Wang, Xiaoyan; Liu, Huitao; Chen, Lingxin; Li, Jinhua

doi:10.1360/ssc-2022-0210

Cited by 8 publications

(7 citation statements)

References 65 publications

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“…Currently, common fluorescent materials for MI-RFL sensors include fluorescent dyes, 36 fluorescent nanoparticles [37][38][39] and fluorescent targets. 40 Their advantages and disadvantages are listed in Table 2. 33,[38][39][40][41][42][43][44][45][46][47] 2.1.1.…”

Section: Fluorescence Sourcesmentioning

confidence: 99%

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Molecular imprinting-based ratiometric fluorescence sensors for environmental and food analysis

Wen¹,

Sun²,

Zhang³

et al. 2023

Analyst

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Section: Fluorescence Sourcesmentioning

confidence: 99%

“…40 Their advantages and disadvantages are listed in Table 2. 33,[38][39][40][41][42][43][44][45][46][47] 2.1.1. Fluorescent dyes.…”

Section: Fluorescence Sourcesmentioning

confidence: 99%

Molecular imprinting-based ratiometric fluorescence sensors for environmental and food analysis

Wen¹,

Sun²,

Zhang³

et al. 2023

Analyst

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“…Chemical sensors can supplement or even replace traditional analytical instruments in real-time detection due to their advantages, such as miniaturization, simple operation, and portability. Among them, visual sensors have the advantages of convenient operation, visualized results, low cost, and short time consumption, and have received widespread attention in fields such as basic research and environmental diagnosis . Therefore, developing rapid and sensitive detection methods for these substances, particularly for easy-to-use sensors, is a critical challenge.…”

Section: Introductionmentioning

confidence: 99%

Functional Electrospun Nanofibrous Hybrid Materials for Colorimetric Sensors: A Review

Li,

Song,

et al. 2024

ACS Omega

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Electrospun nanofibrous hybrid materials have several advantageous characteristics, including easy preparation, high porosity, and a large specific surface area. Meanwhile, they can be more suitable for colorimetric detection in environmental and food areas than organic materials due to the advantages of inorganic nanomaterials, i.e., stability, low toxicity, and durability. In addition to being able to immobilize nanomaterials to avoid particle aggregation, electrospinning hybrid materials also have the advantages of high specific surface area and high porosity, which is beneficial for constructing colorimetric sensors. This review mainly summarizes the fabrication methods of electrospun nanofibrous hybrid materials and the application of electrospun nanofibrous hybrid material based colorimetric sensors. First, the preparation strategies of electrospun nanofibrous hybrid materials were discussed. Then, the applications of the obtained electrospun nanofibrous hybrid materials in the colorimetric sensors for environmental molecules in the gas and liquid phase were further investigated. Finally, this review looks forward to the development prospects and challenges of electrospun hybrid materials in practical applications of colorimetric sensors in order to support the application of colorimetric sensors in practical detection.

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“…POCT refers to a testing method that is carried out at the sampling site, and the test results are obtained quickly using portable analytical instruments. 4 Consequently, POCT is often involved in sensors and related kits which play a key role in the rapid detection field. 5−7 Molecular imprinting-based ratiometric fluorescence (MI-RFL) nanosensors constructed by combining the molecular imprinting (MI) recognition 8−10 and ratiometric fluorescence (RFL) detection 3,11−15 have aroused increasing research interest because they occupy the advantages of recognition specificity, detection sensitivity, rapidity, simplicity, nondestruction, visualization, device portability, etc.…”

Section: ■ Introductionmentioning

confidence: 99%

Molecular Imprinting-Based Ratiometric Fluorescence Nanosensor and Kit for Rapid and Visual Detection of Folic Acid

Wen,

Sun,

et al. 2024

ACS Appl. Nano Mater.

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Molecular imprinting-based ratiometric fluorescence (MI-RFL) nanosensors receive increasing concerns in various fields such as food security, owing to high selectivity and sensitivity, nondestruction, convenience, visualization, etc. Herein, a ternary-emission MI-RFL nanosensor was facilely constructed by postimprinting mixing (PIM) red-emission molecularly imprinted polymers (r-MIPs) and green MIPs (g-MIPs) for rapid and visual detection of folic acid (FA) in food samples. The two fluorescent MIPs were prepared using a sol−gel surface imprinting one-pot method, with FA as template molecules, SiO 2 nanoparticles as supporting materials, 3-mercaptopropionic acid-modified red CdTe quantum dots (CdTe QDs), and glutathione-modified green CdTe QDs as fluorescence sources, respectively. Under the optimal conditions, a good linearity ranging from 0.05 to 50 ppm was attained accompanied by rich color evolution, and limit of detection was down to 0.005 ppm. Then, FA tablets and milk powder were tested, and almost consistent FA contents with that of actual results were found, and recoveries were 89.39−103.43% with relative standard deviations less than 3.37%. Furthermore, the nanosensor-based kit was fabricated to analyze FA tablets by observing color change in 9 min, indicating kit's high accuracy and practicality. This study can provide a universal point-of-care testing method for on-site monitoring of targets in complicated matrices.

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Recent advances in molecular imprinting-based ratiometric fluorescence sensors

Cited by 8 publications

References 65 publications

Molecular imprinting-based ratiometric fluorescence sensors for environmental and food analysis

Molecular imprinting-based ratiometric fluorescence sensors for environmental and food analysis

Functional Electrospun Nanofibrous Hybrid Materials for Colorimetric Sensors: A Review

Molecular Imprinting-Based Ratiometric Fluorescence Nanosensor and Kit for Rapid and Visual Detection of Folic Acid

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