A SERS sensor based on 3D nanocone forests capable of intelligent classification of aquatic product dyes

Zhao, Yaqian; Huang, Ruoyang; Li, Xin; Mao, Xuanjiao; Xu, Shaohang; Zhou, Na; Li, Shaojuan; Mao, Haiyang; Huang, Chengjun

doi:10.1039/d3tc02271d

Cited by 1 publication

(1 citation statement)

References 41 publications

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“…In addition, their prepared SERS device successfully achieved the trace detection of various biochemical molecules, with LODs of 10 −7 M and 10 −9 M for adenine and p-aminothiophenol, respectively. Yaqian Zhao et al [25] designed nanocone forests consisting of gold nanoparticles (AuNPs), which were then attached to silver NPs. The prepared 3D Ag-AuNPs@NCFs exhibited a plasma hybrid mode, which enabled the formation of an enhanced electromagnetic field.…”

Section: Introductionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering for Probe Detection via Gold Nanorods and AuNRs@SiO2 Composites

Li,

Tian,

Yan

et al. 2024

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In this paper, a self-assembly method was used to prepare gold nanorod composites, and a seed-growth method was used to adjust the amount of AgNO3 solution, enabling the preparation of gold nanorods with different aspect ratios. AuNRs@SiO2 nanocomposite particles were then prepared by using the Stöber method to coat the gold nanorod surface with silica. Transmission electron microscopy showed that the maximum aspect ratio of the gold nanorods was 4.53, which was achieved using 2 mL of 10 mM AgNO3 solution. The Raman-scattering intensity of the gold nanorods was studied using rhodamine 6G, thiram, melamine, and piroxicam, and detection limits of 10−8 M, 10−5 M, and 10−3 M were, respectively, achieved. As a substrate, these gold nanorods showed good repeatability and reproducibility, and trace detection was successfully achieved. A transmission electron microscopy analysis shows that the SiO2 shell became thicker with increasing tetraethyl orthosilicate addition. Using AuNRs@SiO2 as the base and R6G, thiram, and piroxicam as the probes, measurable detection limits of 10−9 M, 10−6 M, and 10−5 M were achieved, and this composite also showed excellent repeatability and reproducibility.

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Section: Introductionmentioning

confidence: 99%

Surface-Enhanced Raman Scattering for Probe Detection via Gold Nanorods and AuNRs@SiO2 Composites

Li,

Tian,

Yan

et al. 2024

Coatings

View full text Add to dashboard Cite

show abstract

A SERS sensor based on 3D nanocone forests capable of intelligent classification of aquatic product dyes

Abstract: In this work, a novel surface-enhanced Raman scattering (SERS) sensor with high performance and capable of intelligent classification is developed for detection of prohibited dyes in aquatic products. The sensor...

Cited by 1 publication

References 41 publications

Surface-Enhanced Raman Scattering for Probe Detection via Gold Nanorods and AuNRs@SiO2 Composites

Surface-Enhanced Raman Scattering for Probe Detection via Gold Nanorods and AuNRs@SiO2 Composites

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