A smartphone-based ratiometric fluorescent sensing system for on-site detection of pyrethroids by using blue-green dual-emission carbon dots

Zhu, Xuecheng; Han, Luxuan; Liu, Huilin; Sun, Baoguo

doi:10.1016/j.foodchem.2022.132154

Cited by 58 publications

(26 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Zhu et al [ 35 ] developed a simple and effective two-channel specific fluorescence method for the determination of λ-cyhalothrin based on dual-emission blue–green CD functionalized core–shell nanospheres. The blue and green CDs were taken as the reference signal and the detection signal, respectively.…”

Section: Sensor-based Methods For Pyrethroid Pesticide Determinationmentioning

confidence: 99%

Recent Advances in the Recognition Elements of Sensors to Detect Pyrethroids in Food: A Review

et al. 2022

View full text Add to dashboard Cite

The presence of pyrethroids in food and the environment due to their excessive use and extensive application in the agriculture industry represents a significant threat to public health. Therefore, the determination of the presence of pyrethroids in foods by simple, rapid, and sensitive methods is warranted. Herein, recognition methods for pyrethroids based on electrochemical and optical biosensors from the last five years are reviewed, including surface-enhanced Raman scattering (SERS), surface plasmon resonance (SPR), chemiluminescence, biochemical, fluorescence, and colorimetric methods. In addition, recognition elements used for pyrethroid detection, including enzymes, antigens/antibodies, aptamers, and molecular-imprinted polymers, are classified and discussed based on the bioreceptor types. The current research status, the advantages and disadvantages of existing methods, and future development trends are discussed. The research progress of rapid pyrethroid detection in our laboratory is also presented.

show abstract

Section: Sensor-based Methods For Pyrethroid Pesticide Determinationmentioning

confidence: 99%

Recent Advances in the Recognition Elements of Sensors to Detect Pyrethroids in Food: A Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Carbon sources based on non-acid reagents, namely graphite oxide [ 198 ], poly(ethylene glycol) [ 199 , 200 ], 3-(3,4-dihydroxyphenyl)-L-alanine [ 201 ], ethanolamine [ 202 ], polyimide [ 203 ], polyethyleneglycol bis(3-aminopropyl) [ 204 ], ethanol [ 205 ], 3-bromophenol [ 206 ], azidoimidizole [ 207 ], activated carbon [ 208 ], glucose [ 209 ], N-methylethanolammonium thioglycolate [ 209 ], chitosan [ 210 ], chlorophyll [ 211 ], microcrystalline cellulose [ 212 ], o-phenylenediamine [ 213 ], carbon paper [ 214 ], papain [ 215 ], dextrose solution [ 216 ], etc. [ 217 , 218 , 219 , 220 , 221 , 222 , 223 , 224 , 225 , 226 , 227 , 228 , 229 , 230 ], have also been reviewed, as shown in Table 9 . 3-Bromophenol is the first insecticide adopted to be a potential precursor, thus suggesting that carbon sources are not limited in typical chemical reagents with high purity or low toxicity [ 206 ].…”

Section: Cds Synthesized From Chemical Precursorsmentioning

confidence: 99%

“…Here, silica nanoparticles play a role in preventing the contact between m-CDs and the dispersion solvent so the m-CDs could act as a reliable reference background; o-CDs act as a fluorescence signal; 3-aminopropyrtriethoxy silane (APTES) as a functional monomer to connect with LC through hydrogen bonding; ionic liquids (IL) as a cationic surfactant, which are attached to the system by electrostatic interaction to enhance the fluorescence of the core-shell nanospheres; and tetraethyl orthosilicate (TEOS) is used to form a layer of imprinted silicon shell on the surface of m-CDs@SiO 2 . Inspired by the role of materials, these newly formed core-shell nanospheres managed to achieve lower detection limits, excellent reusability, and better precision than those of other methods reported in this work [ 230 ]. All the proposed CD-based optical sensors for the detection of pesticides are tabulated orderly in Table 12 .…”

Section: Application Of Cd-based Optical Sensor For Environmental Mon...mentioning

confidence: 99%

See 1 more Smart Citation

A Review on Carbon Dots: Synthesis, Characterization and Its Application in Optical Sensor for Environmental Monitoring

et al. 2022

View full text Add to dashboard Cite

The development of carbon dots (CDs), either using green or chemical precursors, has inevitably led to their wide range application, from bioimaging to optoelectronic devices. The reported precursors and properties of these CDs have opened new opportunities for the future development of high-quality CDs and applications. Green precursors were classified into fruits, vegetables, flowers, leaves, seeds, stem, crop residues, fungi/bacteria species, and waste products, while the chemical precursors were classified into acid reagents and non-acid reagents. This paper quickly reviews ten years of the synthesis of CDs using green and chemical precursors. The application of CDs as sensing materials in optical sensor techniques for environmental monitoring, including the detection of heavy metal ions, phenol, pesticides, and nitroaromatic explosives, was also discussed in this review. This profound review will offer knowledge for the upcoming community of researchers interested in synthesizing high-quality CDs for various applications.

show abstract

“…This software mainly analyzes the intensity of optical signals through four channels including blue, yellow, purple, and brightness. Since its development in 2017, the Spotxel ® Reader has been used by many researchers for the rapid and inexpensive detection of several analytes including environmental pollutants [ 33 , 34 ], microbial [ 35 ], disease-related biomarkers [ 36 – 38 ], etc. The detained mechanism, detection limit, and analysis accuracy are shown in Table 1 .…”

Section: Introductionmentioning

confidence: 99%

Promising instrument-free detections of various analytes using smartphones with Spotxel® Reader

et al. 2022

View full text Add to dashboard Cite

In consideration of the problems related to food safety, environmental pollution, and the spread of infected diseases nowadays, we urgently need testing methods that can be easily performed by common people. Smartphone-based detections are promising for general applications. However, some of these analytical strategies require a combination of accessories and instruments, such as portable electrochemical workstations, mini multi-mode microplate readers, and complex temperature control devices, etc., which are small but still expensive. Herein, we comprehensively introduce a free app (Spotxel ® Reader) that can provide accurate data analysis for microplate or parallel-format test sensors without an instrument. By simulating the optical signal of the test samples through a smartphone, the sensing results can be obtained for free. We discuss the detection strategies involved in the reported smartphone-based analyses using Spotxel ® Reader. Prospects for the development of this free app for future detection applications are presented. This review aims to popularize free analysis software, so that ordinary people may realize convenient tests. Graphical abstract

show abstract

A smartphone-based ratiometric fluorescent sensing system for on-site detection of pyrethroids by using blue-green dual-emission carbon dots

Cited by 58 publications

References 33 publications

Recent Advances in the Recognition Elements of Sensors to Detect Pyrethroids in Food: A Review

Recent Advances in the Recognition Elements of Sensors to Detect Pyrethroids in Food: A Review

A Review on Carbon Dots: Synthesis, Characterization and Its Application in Optical Sensor for Environmental Monitoring

Promising instrument-free detections of various analytes using smartphones with Spotxel® Reader

Contact Info

Product

Resources

About