Cu@Ag/β-AgVO3 as a SERS substrate for the trace level detection of carbamate pesticides

Fodjo, Essy Kouadio; Riaz, Sara; Li, Dawei; Qu, Lulu; Marius, Niamien Paulin; Trokourey, Albert; Long, Yi‐Tao

doi:10.1039/c2ay25635e

Cited by 24 publications

(23 citation statements)

References 48 publications

(62 reference statements)

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“…Carbaryl pesticides are extensively used in the agriculture, environment, and bioscience fields due to their broad generalizability and high insecticidal efficacy but low toxicity toward a variety of warm-blooded animals [1,2]. However, residual carbaryl pesticides could inhibit the activity of enzyme acetylcholinesterase, which is extremely essential for central nervous system function, and induce allergic hypersensitivity reactions.…”

Section: Introductionmentioning

confidence: 99%

“…In severe cases, the enzyme inactivity could cause serious respiratory paralysis and deadly poisonous diseases for a lot of living organisms [3,4,5]. Due to above serious problems, the Codex Alimentarious Commission (CAC) have enacted a series of relative legislation to restrict the level of carbaryl pesticides released into the environment, and a number of technologies, such as gas chromatography–mass spectrometry (GC-MS), liquid chromatography–mass spectrometry (LC-MS), thin-Layer chromatography (TLC), and electrochemical sensors, have been exploited to detect the residues of carbaryl pesticides in the environment [2,3]. Although these well-established methods could be utilized to detect trace amounts of carbaryl pesticide residues, they are usually highly priced, time-consuming, labor-intensive, and often require complicated procedures of sample pretreatment [6,7].…”

Section: Introductionmentioning

confidence: 99%

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In-Situ Grown Silver Nanoparticles on Nonwoven Fabrics Based on Mussel-Inspired Polydopamine for Highly Sensitive SERS Carbaryl Pesticides Detection

Zhang

et al. 2019

Nanomaterials

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The rapid sampling and efficient collection of target molecules from a real-world surface is fairly crucial for surface-enhanced Raman scattering (SERS) to detect trace pesticide residues in the environment and in agriculture fields. In this work, a versatile approach was exploited to fabricate a flexible SERS substrate for highly sensitive detection of carbaryl pesticides, using in-situ grown silver nanoparticles (AgNPs)on non-woven (NW) fabric surfaces based on mussel-inspired polydopamine (PDA) molecules. The obtained NW@PDA@AgNPs fabrics showed extremely sensitive and reproducible SERS signals toward crystal violet (CV) molecules, and the detection limit was as low as 1.0 × 10−12 M. More importantly, these NW@PDA@AgNPs fabrics could be directly utilized as flexible SERS substrates for the rapid extraction and detection of trace carbaryl pesticides from various fruit surfaces through a simple swabbing approach. It was identified that the detection limits of carbaryl residues from apple, orange, and banana surfaces were approximately decreased to 4.02 × 10−12, 6.04 × 10−12, and 5.03 × 10−12 g, respectively, demonstrating high sensitivity and superior reliability. These flexible substrates could not only drastically increase the collection efficiency from multifarious irregular-shaped matrices, but also greatly enhance analytical sensitivity and reliability for carbaryl pesticides. The fabricated flexible and multifunctional SERS substrates would have great potential to trace pesticide residue detection in the environment and bioscience fields.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In-Situ Grown Silver Nanoparticles on Nonwoven Fabrics Based on Mussel-Inspired Polydopamine for Highly Sensitive SERS Carbaryl Pesticides Detection

Zhang

et al. 2019

Nanomaterials

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“…The most commonly used flexible SERS platforms are paper [21,22], filter paper [23], fabrics [24,25,26], poly(dimethylsiloxane) (PDMS) films [27,28,29], fiber cloth [30], electrospun fibers [31], surface-modified polymers [32,33] and also egg shell membrane [34], modified adhesive tape [35,36], sandpaper [37], copper foil [38] and cardboard [39]. Also, successful measurements have been performed using modified cicada and dragonfly wings [40,41,42,43].…”

Section: Introductionmentioning

confidence: 99%

Flexible PET/ITO/Ag SERS Platform for Label-Free Detection of Pesticides

et al. 2019

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We show a new type of elastic surface-enhanced Raman spectroscopy (SERS) platform made of poly(ethylene terephthalate) (PET) covered with a layer of indium tin oxide (ITO). This composite is subjected to dielectric barrier discharge (DBD) that develops the active surface of the PET/ITO foil. To enhance the Raman signal, a modified composite was covered with a thin layer of silver using the physical vapor deposition (PVD) technique. The SERS platform was used for measurements of para-mercaptobenzoic acid (p-MBA) and popular pesticides, i.e., Thiram and Carbaryl. The detection and identification of pesticides on the surface of fruits and vegetables is a crucial issue due to extensive use of those chemical substances for plant fungicide and insecticide protection. Therefore, the developed PET/ITO/Ag SERS platform was dedicated to quantitative analysis of selected pesticides, i.e., Thiram and Carbaryl from fruits. The presented SERS platform exhibits excellent enhancement and reproducibility of the Raman signal, which enables the trace analysis of these pesticides in the range up to their maximum residues limit. Based on the constructed calibration curves, the pesticide concentrations from the skin of apples was estimated as 2.5 µg/mL and 0.012 µg/mL for Thiram and Carbaryl, respectively. Additionally, the PET/ITO/Ag SERS platform satisfies other spectroscopic properties required for trace pesticide analysis e.g., ease, cost-effective method of preparation, and specially designed physical properties, especially flexibility and transparency, that broaden the sampling versatility to irregular surfaces.

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“…Among the various nanostructured materials, Au and Ag nanostructures have received particular interest. These nanomaterials have remarkable optical and antibacterial properties [3] [4] and, fascinating applications in wide areas such as sensing [5] [6] [7], catalysis [8], optical labeling [9] [10], drug delivery [11] [12], cancer diagnosis and its treatment [12] [13].…”

Section: Introductionmentioning

confidence: 99%

“…The undergoing reaction is followed by recording for every hour, the UV-vis spectrum. In Step 2 (Ag NPs synthesis), 40 mg of AgNO 3 is dissolved in 15 mL of DI water, mixed with 2 mL of NaBH 4 (6 mg) and left for 10 min of reaction[5]. Finally, the solutions obtained in Step 1 and that of Step 2 are mixed for the preparation of Au-Ag@PEG nanomaterials and, the UV-Vis is…”

mentioning

confidence: 99%

Facile Synthesis Route of Au-Ag Nanostructures Soaked in PEG

Fodjo¹,

Canlier²,

Kong³

et al. 2018

ANP

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A nanostructured gold-silver soaked in polyethylene glycol 400 (Au-Ag@PEG) is designed using gold(I) chloride and silver nitrate (AgNO 3) as precursors and, polyethylene glycol 400 (PEG) as capping agent. The result of the structure characterization using Selected Area Electron Diffraction (SAED) has showed that the synthesized nanomaterial has a good crystallinity while Transmission Electron Microscopy (TEM), energy dispersive X-ray spectrometry (EDX) and Dynamic Light Scattering (DLS) measurements suggest mixed Au-Ag nanoparticles with an average diameter size of around 7 nm and 30 nm for Au and Ag respectively.

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Cu@Ag/β-AgVO3 as a SERS substrate for the trace level detection of carbamate pesticides

Cited by 24 publications

References 48 publications

In-Situ Grown Silver Nanoparticles on Nonwoven Fabrics Based on Mussel-Inspired Polydopamine for Highly Sensitive SERS Carbaryl Pesticides Detection

In-Situ Grown Silver Nanoparticles on Nonwoven Fabrics Based on Mussel-Inspired Polydopamine for Highly Sensitive SERS Carbaryl Pesticides Detection

Flexible PET/ITO/Ag SERS Platform for Label-Free Detection of Pesticides

Facile Synthesis Route of Au-Ag Nanostructures Soaked in PEG

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