Fabrication of a near-infrared excitation surface molecular imprinting ratiometric fluorescent probe for sensitive and rapid detecting perfluorooctane sulfonate in complex matrix

Tian, Lingxi; Guo, Hao; Li, Jing; Liu, Na; Zhu, Enze; Liu, Xiaoming; Li, Kexin

doi:10.1016/j.jhazmat.2021.125353

Cited by 33 publications

(22 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As previously reported, there are two main approaches to verify the accuracy of the rapid detection method: (1) detecting real samples using both instrumental analysis methods and rapid detection methods simultaneously, and comparing the consistency or correlation of detection results; (2) spiking the analyte in negative samples at different concentrations for preparing positive samples and measuring the recovery ratio using rapid detection method [ 33 , 34 ]. In this research, the accuracy of the proposed fluorescence sensor was analyzed by recovery ratios and the variations in intra- and inter-assays.…”

Section: Resultsmentioning

confidence: 99%

A Rapid Fluorescence Sensor for the Direct Quantification of Rongalite in Foodstuffs

Chen

Huang

et al. 2022

Foods

View full text Add to dashboard Cite

Rongalite was reported illegally used as a food additive for bleaching purposes and improving the tenderness of foodstuffs, which may endanger public health. At present, rongalite was mostly detected by indirect methods via derivatization or determining its decomposition products. In this study, we developed a new fluorescence sensor for the direct quantification of rongalite based on the principles: (1) dopamine reacts with resorcinol and generates strong fluorophore (azamonardine); (2) rongalite could inhibit the production of fluorophores and then result in lower fluorescence intensity. Hence, the rongalite concentration was inversely proportional to fluorescence intensity of fluorophore. Several crucial reaction conditions of fluorescence sensor were further optimized, such as dopamine and resorcinol concentration, pH values, and reaction time. Under the optimal conditions, the limit of detection of fluorescence sensor was 0.28–0.38 μg/g in vermicelli, wheat and rice powder samples, exhibiting almost 3.5-fold improvement compared to that of lateral flow immunoassay. Moreover, the detection time was substantially decreased to 20 min. The recoveries in spiked samples were 80.7–102.1% with a coefficient of variation of less than 12.6%. In summary, we developed a direct, high throughput, selective and accurate fluorescence sensor that poses a promising application for the rapid detection of rongalite in foodstuffs.

show abstract

Section: Resultsmentioning

confidence: 99%

A Rapid Fluorescence Sensor for the Direct Quantification of Rongalite in Foodstuffs

Chen

Huang

et al. 2022

Foods

View full text Add to dashboard Cite

show abstract

“…Moreover, surface-imprinted materials have recognition sites on the polymeric surface [ 110 ] and exhibit an enhanced selectivity and sensitivity [ 126 ] improving recognition effectiveness. They are produced by localizing the template on the polymeric surface [ 127 ] and the most frequently employed techniques are the solid-phase approach and emulsion polymerization [ 128 , 129 ].…”

Section: Molecularly Imprinted Polymers (Mips)mentioning

confidence: 99%

The Evolution of Molecular Recognition: From Antibodies to Molecularly Imprinted Polymers (MIPs) as Artificial Counterpart

Parisi

Francomano

Dattilo

et al. 2022

JFB

View full text Add to dashboard Cite

Molecular recognition is a useful property shared by various molecules, such as antibodies, aptamers and molecularly imprinted polymers (MIPs). It allows these molecules to be potentially involved in many applications including biological and pharmaceutical research, diagnostics, theranostics, therapy and drug delivery. Antibodies, naturally produced by plasma cells, have been exploited for this purpose, but they present noticeable drawbacks, above all production cost and time. Therefore, several research studies for similar applications have been carried out about MIPs and the main studies are reported in this review. MIPs, indeed, are more versatile and cost-effective than conventional antibodies, but the lack of toxicity studies and their scarce use for practical applications, make it that further investigations on this kind of molecules need to be conducted.

show abstract

“…Satisfactory results were achieved for determination of PFOS in spiked real water samples. Recently, Tian and coworkers [ 18 ] have proposed a molecularly imprinted near-infrared excitation ratiometric fluorescent probe for the detection of PFOS, based on a unique optical nanomaterial, such as lanthanide-doped upconversion nanoparticles (UCNPs). The nanoprobe was constructed by physically mixing two different UCNPs emitting green and blue fluorescence, as response signal and reference signal, respectively.…”

Section: Fluorometric Sensorsmentioning

confidence: 99%

“… Schematic illustration of the upconversion molecular imprinted ratiometric probe. Reprinted from [ 18 ]. …”

Section: Figures Schemes and Tablementioning

confidence: 99%

Advances in Optical Sensors for Persistent Organic Pollutant Environmental Monitoring

Caroleo

Naitana

Zazzo

et al. 2022

Sensors

View full text Add to dashboard Cite

Optical chemical sensors are widely applied in many fields of modern analytical practice, due to their simplicity in preparation and signal acquisition, low costs, and fast response time. Moreover, the construction of most modern optical sensors requires neither wire connections with the detector nor sophisticated and energy-consuming hardware, enabling wireless sensor development for a fast, in-field and online analysis. In this review, the last five years of progress (from 2017 to 2021) in the field of optical chemical sensors development for persistent organic pollutants (POPs) is provided. The operating mechanisms, the transduction principles and the types of sensing materials employed in single selective optical sensors and in multisensory systems are reviewed. The selected examples of optical sensors applications are reported to demonstrate the benefits and drawbacks of optical chemical sensor use for POPs assessment.

show abstract

Fabrication of a near-infrared excitation surface molecular imprinting ratiometric fluorescent probe for sensitive and rapid detecting perfluorooctane sulfonate in complex matrix

Cited by 33 publications

References 34 publications

A Rapid Fluorescence Sensor for the Direct Quantification of Rongalite in Foodstuffs

A Rapid Fluorescence Sensor for the Direct Quantification of Rongalite in Foodstuffs

The Evolution of Molecular Recognition: From Antibodies to Molecularly Imprinted Polymers (MIPs) as Artificial Counterpart

Advances in Optical Sensors for Persistent Organic Pollutant Environmental Monitoring

Contact Info

Product

Resources

About