Silver-nanoparticle-based surface-enhanced Raman scattering wiper for the detection of dye adulteration of medicinal herbs

Li, Dan; Zhu, Qingxia; Lv, Diya; Zheng, Binxing; Liu, Yanhua; Chai, Yifeng; Lu, Feng

doi:10.1007/s00216-015-8776-1

Cited by 29 publications

(4 citation statements)

References 26 publications

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“…MG, MB, and CV as well-known antifungal agents have been extensively used to prevent and treat water mildew and other fish diseases. Among them, MG and CV can cause chromosomal mutations in cells and have strong carcinogenic effects. , Herein, SERS detection of MG, MB, and CV (structures are given in Figure S10) was performed by using the Au 3 -PC strip. For the MG molecule in Figure S11A, the concentrations as low as 10 –10 M was detectable by observation of the characteristic Raman peak at 1616 cm –1 , showing a high sensitivity.…”

Section: Resultsmentioning

confidence: 99%

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Song

Fang

et al. 2020

ACS Sens.

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Surface-enhanced Raman scattering (SERS) is a powerful technique for sensitive detection, but it normally has difficulty in multicomponent detection in a complex system, especially for simultaneous analysis of mixture of heavy metal ions. In this work, a simple paper chromatography tandem SERS (PC-SERS) separation/detection platform is proposed by ion-sputtering gold on a filter paper. Based on SEM results, the great electromagnetic field inside nanogaps of Au nanoislands on the paper surface is evaluated with FDTD simulation. It is found that the PC-SERS platform has good uniformity (RSD = 10.12%) and long-time stability. The as-prepared PC-SERS platform was applied to efficiently separate and detect a mixture of pesticides (MG, MB, and CV) in pond water without any pretreatment process, and the limits of detection (LODs) were down to 10 nM. As a crucial application for food safety, several heavy metal ions such as Cd 2+ , Cu 2+ , and Ni 2+ in grinded rice were successfully detected by the PC-SERS method taking advantage of the sandwich structure based on 4-mercaptobenzoic acid (4-MBA) molecules, which were modified onto sputtering the Au filter paper and gold nanoparticles (Au NPs) to link metal ions and acted as Raman signal molecules. All the LODs for metal ions were down to 1 μM. Due to the easiness of fabrication, good reproducibility, and simple pretreatment step, the PC-SERS platform holds promise in multicomponent detection in a real sample.

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Section: Resultsmentioning

confidence: 99%

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Song

Fang

et al. 2020

ACS Sens.

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“…Recently, SERS have been proven to be a promising technique for a simple, rapid, low-cost, and nondestructive analysis in the quality control and safety assessment of CHMs. 25,26 In this review, we first briefly introduce the working principle of SERS. Next, we discuss the use of SERS to analyse CHMs from the following aspects: raw material identification; bioactive constituent detection; adulterant characterization; and contamination detection.…”

Section: Introductionmentioning

confidence: 99%

Surface-enhanced Raman spectroscopy as a powerful method for the analysis of Chinese herbal medicines

Xu,

Song,

et al. 2024

Analyst

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“…However, complex pretreatments and heavy instruments are necessary for the subsequent analysis, which limit their application in field-portable rapid detection. Some efforts on rapid analysis based on the SERS method have been made by Li et al [17]. They investigated the dye adulteration of medicinal herbs using a silver-nanoparticle-based SERS wiper and detected malachite green down to 10 −6 g ml −1 in honeysuckle, and in another work, the SERS detection of dyed safflower [18] was exhibited.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a large-area, flexible micro-pyramid PET film SERS substrate and its application in the detection of dye in herbal tea

Liu¹,

Huang²,

Chen³

et al. 2018

Laser Phys. Lett.

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A simple method, based on a roll-to-roll ultraviolet micro-pyramid imprinting technique and a nanoparticle self-assembling process in aqueous solution, to fabricate a large-area, flexible surface-enhanced Raman scattering (SERS) polyethylene glycol terephthalate substrate is proposed. The SERS substrate is demonstrated to be of high sensitivity. The detection concentration of Rhodamine 6G (R6G) measured by a portable Raman spectrometer is down to 10−9 mol l−1. The relative standard deviation values of different spots and different substrates are less than 13%. In addition, the feasibility for rapid detection of dye in herbal tea based on this SERS substrate and a portable Raman spectrometer is investigated. Three industrial dyes are employed to simulate the dyeing process. It is presented that R6G of g ml−1, malachite green of 10−6 g ml−1 and Auramine O of 10−6 g ml−1 in herbal tea could be detected rapidly. The experimental results imply that this method could be potentially applied in the field of dyed herbal tea detection.

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Silver-nanoparticle-based surface-enhanced Raman scattering wiper for the detection of dye adulteration of medicinal herbs

Cited by 29 publications

References 26 publications

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Au Sputtered Paper Chromatography Tandem Raman Platform for Sensitive Detection of Heavy Metal Ions

Surface-enhanced Raman spectroscopy as a powerful method for the analysis of Chinese herbal medicines

Fabrication of a large-area, flexible micro-pyramid PET film SERS substrate and its application in the detection of dye in herbal tea

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