In-situ preparation of Ferrero® chocolate-like Cu2O@Ag microsphere as SERS substrate for detection of thiram

Yao, Chengli; Gao, Xinna; Li, Xuan; Shen, Yuhua

doi:10.1016/j.jmrt.2021.01.069

Cited by 33 publications

(18 citation statements)

References 54 publications

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“…Several publications claim that their methods have real-world environmental applications, but it has been shown that samples within complex matrices that contain interference often do not yield Raman enhancement as high as in simple laboratory samples. For example, the SERS substrate developed by Yao et al was able to detect THR down to 10 -9 M in a simple water matrix, but on apple peels, it was only able to detect THR at concentration of 1.2 × 10 -7 M. 143 Future studies should aim to improve SERS detection in a variety of complex matrices in both natural and man-made environments. One strategy of minimizing matrix interference is using more advanced sample purification methods.…”

Section: Minimizing Interference From Environmental Matricesmentioning

confidence: 99%

“…While the toxicity of most fungicides is generally low, prolonged exposure to these compounds may lead to adverse health effects such as neurological disruptions 126 . Several recent studies have utilized SERS to detect various fungicides, including tetramethylthiuram disulfide (THR), 39,53,61,70,79,127–161 carbendazim, 162–165 chlorothalonil, 166,167 MG, 168–173 TBZ (a fungicide and parasiticide) 20,79,153,155,173–178 and ferbam 20,178,179 . Among them, THR is the most studied due to its wide agricultural applications and strong binding with SERS nanosubstrates through the thiol group.…”

Section: Analytes Of Interestmentioning

confidence: 99%

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Applications of surface‐enhanced Raman spectroscopy in environmental detection

Terry

Sanders

Potoff

et al. 2022

Analytical Science Advances

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As the human population grows, the anthropogenic impacts from various agricultural and industrial processes produce unwanted contaminants in the environment. The accurate, sensitive and rapid detection of such contaminants is vital for human health and safety. Surface-enhanced Raman spectroscopy (SERS) is a valuable analytical tool with wide applications in environmental contaminant monitoring. The aim of this review is to summarize recent advancements within SERS research as it applies to environmental detection, with a focus on research published or accessible from January 2021 through December 2021 including early-access publications. Our goal is to provide a wide breadth of information that can be used to provide background knowledge of the field, as well as inform and encourage further development of SERS techniques in protecting environmental quality and safety. Specifically, we highlight the characteristics of effective SERS nanosubstrates, and explore methods for the SERS detection of inorganic, organic, and biological contaminants including heavy metals, pharmaceuticals, plastic particles, synthetic dyes, pesticides, viruses, bacteria and mycotoxins. We also discuss the current limitations of SERS technologies in environmental detection and propose several avenues for future investigation. We encourage researchers to fill in the identified gaps so that SERS can be implemented in a real-world environment more effectively and efficiently, ultimately providing reliable and timely data to help and make science-based strategies and policies to protect environmental safety and public health.

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Section: Minimizing Interference From Environmental Matricesmentioning

confidence: 99%

Section: Analytes Of Interestmentioning

confidence: 99%

Applications of surface‐enhanced Raman spectroscopy in environmental detection

Terry

Sanders

Potoff

et al. 2022

Analytical Science Advances

View full text Add to dashboard Cite

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“…Yao et al obtained core-shell Cu 2 O@Ag hybrids with a Ferrero chocolate-like morphology through a two-pot approach that begins with the synthesis of Cu 2 O microspheres. [24] These microspheres were isolated and redispersed, and then GRR was allowed to proceed by adding AgNO 3 to the dispersion and stirring the mixture for 1 h. They noted that the molar ratio of Ag + to Cu 2 O is crucial to fully coat the Cu 2 O surface, but this ratio should not be too high to prevent excessive etching of Cu 2 O by Ag + as this can cause the Cu 2 O core to collapse. A simpler one-pot protocol was reported by Zhang et al, where the GRR process was initiated by adding a solution of AgNO 3 directly into the Cu 2 O-containing mother solution at room temperature.…”

Section: Core-shell Cu 2 O@agmentioning

confidence: 99%

“…For instance, Yao et al employed their core-shell Cu 2 O@Ag hybrid for the SERS-based detection of thiram residues on apple peel. [24] Thiram (or tetramethylthiuram disulfide) is traditionally used as a fungicide and an animal repellent for crop protection. The core-shell Cu 2 O@Ag substrate was able to detect thiram contaminants from apple peel with a detection limit of 1.2 × 10 À 7 M (or 0.03 ppm), which is far lower than the maximum residue limit of 7 ppm in fruit as recommended by the U.S. Environmental Protection Agency.…”

Section: Sers-based Detectionmentioning

confidence: 99%

Rational Design and Synthesis of Ag−Cu₂O Nanocomposites for SERS Detection, Catalysis, and Antibacterial Applications

Sayson

Regulacio

2022

ChemNanoMat

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With the growing desire to incorporate enhanced properties and multiple functions into a single nanostructured system, research on nanocomposites has intensified in recent years. Several material combinations have already been studied, giving rise to a rich library of hybrid nanomaterials. In this Minireview, attention is directed toward Ag−Cu2O nanocomposites, which integrate the strong plasmonic features of metallic Ag and the semiconducting properties of Cu2O. There are numerous ways by which these two materials can be arranged in a nanocomposite, leading to diverse types of hybrid configurations (e. g. core–shell, core–satellite, yolk–shell, Janus). The synthetic protocols that have been used in fabricating these different hybrid structures are amply discussed in this paper. Also described are the remarkable properties that arise from the union of Ag and Cu2O, and how these properties can be utilized in the fields of sensing, catalysis, and antibacterial treatment. Lastly, knowledge gaps and future directions are identified in the concluding section.

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“…Such substrates are produced from laser ablation techniques, chemical synthesis, such as Ferrero-chocolate-like Cu20@Ag substrates or eggshell membranes. [4][5][6] Special-shaped nanoparticles may serve as SERS active substrates such as snowflake-shaped gold nanoparticles are used for the detection of organophosphates or micro-bowl structured silver nanoparticles. 7,8 Nanoparticles with a hybrid system in three-dimensional (3D) Au@Ag nanocubes as mono films were used to detect chrysoidine.…”

Section: Introductionmentioning

confidence: 99%

Green Textile Materials for Surface Enhanced Raman Spectroscopy Identification of Pesticides Using a Raman Handheld Spectrometer for In-Field Detection

et al. 2022

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Surface enhanced Raman spectroscopy has evolved into a powerful analytical method in food and environmental analytical sciences due to its high sensitivity. Pesticide analysis is a major discipline therein. Using sustainable materials has become increasingly important to adhere to Green Chemistry principles. Hence, the green textiles poly-(L-lactic acid) (PLA) and the mixed fabric polyethylene terephthalate polyamide (PET/PA) were investigated for their applicability as solid supports for gold nanoparticles to yield SERS substrates. Gold nanoparticle solutions and green textile supports were prepared after preparation optimization. Particle size, dispersity and particle distribution over the textiles were characterized by absorption spectroscopy and transmission electron imaging. The performance of the SERS substrates was tested using the three pesticides imidacloprid, paraquat and thiram and a handheld Raman spectrometer with a laser wavelength of 785 nm. The resulting SERS spectra possessed an intra-substrate variation of 7 to 8% in terms of the residual standard deviation. The inter-substrate variations amounted to 15% for PET/PA and to 27% for PLA. Substrate background signals were smaller with PLA but more enhanced through PET/PA. The pesticides could be detected at 1 pg on PET/PA and at 3 ng on PLA. Hence, PET/PA woven textile soaked with gold nanoparticle solution provides green SERS substrates and might prove - in combination with fieldable Raman spectrometers - suitable for in-field analytics for pesticide identification.

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In-situ preparation of Ferrero® chocolate-like Cu2O@Ag microsphere as SERS substrate for detection of thiram

Cited by 33 publications

References 54 publications

Applications of surface‐enhanced Raman spectroscopy in environmental detection

Applications of surface‐enhanced Raman spectroscopy in environmental detection

Rational Design and Synthesis of Ag−Cu₂O Nanocomposites for SERS Detection, Catalysis, and Antibacterial Applications

Green Textile Materials for Surface Enhanced Raman Spectroscopy Identification of Pesticides Using a Raman Handheld Spectrometer for In-Field Detection

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In-situ preparation of Ferrero® chocolate-like Cu2O@Ag microsphere as SERS substrate for detection of thiram

Cited by 33 publications

References 54 publications

Applications of surface‐enhanced Raman spectroscopy in environmental detection

Applications of surface‐enhanced Raman spectroscopy in environmental detection

Rational Design and Synthesis of Ag−Cu2O Nanocomposites for SERS Detection, Catalysis, and Antibacterial Applications

Green Textile Materials for Surface Enhanced Raman Spectroscopy Identification of Pesticides Using a Raman Handheld Spectrometer for In-Field Detection

Contact Info

Product

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Rational Design and Synthesis of Ag−Cu₂O Nanocomposites for SERS Detection, Catalysis, and Antibacterial Applications