Synthesis of Silver Nanodendrites on Silicon and Its Application for the Trace Detection of Pyridaben Pesticide Using Surface-Enhanced Raman Spectroscopy

Lương, Trúc Quỳnh Ngân; Minh, Kieu Ngoc; Cao, Dao Tran; Anh, Cao Tuan; Vu, Le Van

doi:10.1007/s11664-017-5284-4

Cited by 20 publications

(12 citation statements)

References 14 publications

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“…Electroless etching is a recognized wet etching process to prepare AgNDs on a solid platform. In recent years silicon has frequently been used as a reducing agent owing to its versatility, superior bio-compatibility, and multi-functionality ( Weakliem and Redfield, 1979 ; Ngan et al., 2017 ; Kuntyi et al., 2019 ). According to the Scopus research report retrieved recently, there were >60 articles on AgNDs that originated from SERS sensing in the last five years.…”

Section: Introductionmentioning

confidence: 99%

Wafer-scale silver nanodendrites with homogeneous distribution of gold nanoparticles for biomolecules detection

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Wafer-scale silver nanodendrites with homogeneous distribution of gold nanoparticles for biomolecules detection

et al. 2022

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“…The fabrication of arrays of silver nanoparticles, nanodendrites or nanoflowers on silicon surface has been described in detail in our works [11,15,18,19]. In brief, to produce an array of silver nanoparticles (AgNPs) on silicon, both chemical and electrochemical deposition can be used.…”

Section: Methodsmentioning

confidence: 99%

“…Pyridaben (molecular formula C 19 H 25 ClN 2 OS) is an insecticide belonging to a new acaricide pesticide family, the pyridazinones, which has been widely used on crops to control of mites and some other insects, such as white flies, aphids and thrips. Although pyridaben has been reported to be a substance of low toxicity to mammals, it still adversely affects their growth and reproduction, especially when it is used improperly [15][16][17]. Therefore, the rapid detection and determination of pyridaben is a practical necessity.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Silver Nanostructures in the Form of Particles, Dendrites and Flowers on Silicon for Use in SERS Substrates

Tran

Quynh

Cao³

et al. 2022

Comm. in Phys.

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Surface Enhanced Raman Scattering (SERS) is a technique that is increasingly being used to detect trace amounts of various types of molecules, especially organic and biological molecules. The SERS effect is available mainly due to the SERS substrate - a noble metal surface that is rough at the nano level or a set of noble metal nanoparticles in a certain arrangement. Such a SERS substrate acts as an analyte Raman signal amplifier and can provide amplification up to millions of times and even more. The amplification coefficient of the SERS substrate is determined mainly by the number of ‘hot spots’ it contains as well as the ‘hotness’ of these spots. In turn, a ‘hot spot’ is a certain space around the tips or a nanogap between particles, where the local electromagnetic field is intensely enhanced, while the ‘hotness’ is determined by the sharpness of the tips (the sharper the hotter) and tightness of the gaps (the narrower the hotter). This report presents an overview of the research results of fabricating a type of SERS substrate with a high enhancement factor, which is the SERS substrate made from silver nanostructures coated on the silicon surface. With the aim of increasing the number of ‘hot spots’ and their quality, as well as ensuring uniformity and reproducibility of the SERS substrate, silver nanostructures have been fabricated in various forms, such as nanoparticles, nanodendrites and nanoflowers. In addition, the report also mentions the use of the above silver nanostructures as SERS substrates to detect trace amounts of some pesticides and other toxic agents such as paraquat, pyridaben, thiram, cyanide...

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“…Ngan et al synthesized silver nanodendrites on silicon, which could be used as SERS substrates to detect pyridaben. 50 The possible interactions between pesticide molecules and nanostructures can occur through the pesticides adsorbed on the substrates surfaces. Pesticides with certain functional groups, such as carboxyl, hydroxyl, thiol, and amine that can bind to Au or Ag substrates strongly are also good targets, 51,52 while pesticide molecules without these functional groups could be coupled by some probe molecules (e.g., 4-MBA, PATP) and bind to the substrates indirectly.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In this case, 2,4- d and methyl-parathion can be degraded into clean inorganic molecules by this substrate with UV-irradiation after detection. Ngan et al synthesized silver nanodendrites on silicon, which could be used as SERS substrates to detect pyridaben …”

Section: Introductionmentioning

confidence: 99%

Detection of Pesticide Residues in Food Using Surface-Enhanced Raman Spectroscopy: A Review

Gao

Han

2017

J. Agric. Food Chem.

297

145

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Pesticides directly pollute the environment and contaminate foods ultimately being absorbed by the human body. Their residues contain highly toxic substances that have been found to cause serious problems to human health even at very low concentrations. The gold standard method, gas/liquid chromatography combined with mass spectroscopy, has been widely used for the detection of pesticide residues. However, these methods have some drawbacks such as complicated pretreatment and cleanup steps. Recent technological advancements of surface-enhanced Raman spectroscopy (SERS) have promoted the creation of alternative detection techniques. SERS is a useful detection tool with ultrasensitivity and simpler protocols. Present SERS-based pesticide residue detection often uses standard solutions of target analytes in conjunction with theoretical Raman spectra calculated by density functional theory (DFT) and actual Raman spectra detected by SERS. SERS is quite a promising technique for the direct detection of pesticides at trace levels in liquid samples or on the surface of solid samples following simple extraction to increase the concentration of analytes. In this review, we highlight recent studies on SERS-based pesticide detection, including SERS for pesticide standard solution detection and for pesticides in/on food samples. Moreover, in-depth analysis of pesticide chemical structures, structural alteration during food processing, interaction with SERS substrates, and selection of SERS-active substrates is involved.

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Synthesis of Silver Nanodendrites on Silicon and Its Application for the Trace Detection of Pyridaben Pesticide Using Surface-Enhanced Raman Spectroscopy

Cited by 20 publications

References 14 publications

Wafer-scale silver nanodendrites with homogeneous distribution of gold nanoparticles for biomolecules detection

Wafer-scale silver nanodendrites with homogeneous distribution of gold nanoparticles for biomolecules detection

Fabrication of Silver Nanostructures in the Form of Particles, Dendrites and Flowers on Silicon for Use in SERS Substrates

Detection of Pesticide Residues in Food Using Surface-Enhanced Raman Spectroscopy: A Review

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