A silver self‐assembled monolayer‐decorated polydimethylsiloxane flexible substrate for in situ SERS detection of low‐abundance molecules

Zhao, Hang; Hasi, Wuliji; Bao, Lin; Liu, Yuping; Han, Siqingaowa; Lin, Derong

doi:10.1002/jrs.5418

Cited by 33 publications

(21 citation statements)

References 60 publications

(91 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2(b) that the sol had a visible absorption peak at 683 nm, which is attributed to the plasma single-mode vibration of the Au NBs. The UV absorption peak of the gold or silver sol prepared by the conventional one-step method is concentrated between 400 and 550 nm 22,23 , while the UV absorption peak of Au NBs is located at 683 nm, making the UV absorption peak is red-shifted and more closely matches the excitation source of 785 nm compared to the spherical sol substrate. The reflection spectrum of the solid SERS substrate was shown in Fig.…”

Section: Analytical Sciencesmentioning

confidence: 99%

Detection of Chlortetracycline Hydrochloride in Milk with a Solid SERS Substrate Based on Self-assembled Gold Nanobipyramids

Han

Zhang

et al. 2020

ANAL. SCI.

Self Cite

View full text Add to dashboard Cite

In this paper, a high-yield, monodisperse Au nanobipyramids (Au NBs) sol was prepared by seed-mediated method, and gold nanoparticles were assembled on the surface of the silicon wafer by self-assembly technology to obtain a solid SERS substrate. Scanning electron microscopy (SEM) showed that the average length of Au NBs was 34.31 nm, and the analysis enhancement factor (AEF) was approximately 7.3×10 5 with rhodamine 6G (R6G) as a probe. SERS detection of chlortetracycline hydrochloride (CCH) in milk was performed utilizing the prepared Au NBs substrate, and the limit of detection was 0.01 mg/mL. In the range of 0.01~1 mg/mL, the mass concentration of CCH and SERS signal intensity satisfied the linear relationship of y=258.467x+150.501 and the value of correlation coefficient was 0.9785. In addition, the recovery of spiked samples fluctuated between 96.80% to 111.38%. These results proved that the method is simple and fast, and it is promising to be applied to the field detection of antibiotics in milk.

show abstract

Section: Analytical Sciencesmentioning

confidence: 99%

Detection of Chlortetracycline Hydrochloride in Milk with a Solid SERS Substrate Based on Self-assembled Gold Nanobipyramids

Han

Zhang

et al. 2020

ANAL. SCI.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The assembly process can be referred to in our previous work. 30 The phase transfer was carried out using the PVP ethanol solution as the intermediate carrier. 10 ml prepared Au@Ag core-shell NPs were centrifuged (2000  g 10 min) and dispersed in the same amount of 1 wt % PVP in ethanol.…”

Section: Self-assembly Of Filter Paper Substratesmentioning

confidence: 99%

A Rapid Detection Method for On-site Screening of Estazolam in Beverages with Au@Ag Core-shell Nanoparticles Paper-based SERS Substrate

et al. 2019

Self Cite

View full text Add to dashboard Cite

Estazolam (EST) is a common sedative-hypnotic drug with a risk of abuse. Therefore, rapid on-site detection of EST is necessary to control the abuse of EST. In this paper, a fast, simple, and sensitive method is demonstrated for the detection of EST in both water and beverages that use surface-enhanced Raman spectroscopy (SERS) techniques. Au @Ag core-shell nanoparticles (NPs) assembled on the filter paper as a SERS substrate exhibit good applicability and practicality. At the same time, density functional theory (DFT) is used to assign the vibration mode of the EST molecules, which guides for subsequent experiments. The lowest detectable concentration of EST in aqueous solution can be as low as 5 mg/L, and signal uniformity is excellent (RSD687 = 5.56%, RSD1000 = 4.35%). In addition, EST components artificially added to orange juice and pomegranate juice can be effectively detected by simple pretreatment with a minimum detection concentration as low as 10 mg / L. Therefore, the use of Au@Ag core-shell nanoparticles paper-based SERS substrate provides a quick and easy method for the detection of illegally added drugs in beverages.

show abstract

“…Zhao and co‐workers carried out studies of silver self‐assembled monolayer‐decorated polydimethylsiloxane as a flexible substrate for in situ SERS detection of low‐abundance molecules. They measured thiram and tricyclazole pesticides on the surface of apples, and the results demonstrate that SERS substrates can measure pesticide residues in situ …”

Section: Surface‐enhanced Raman Spectroscopymentioning

confidence: 99%

Recent advances in linear and nonlinear Raman spectroscopy. Part XIII

Nafie

2019

J Raman Spectroscopy

View full text Add to dashboard Cite

This article is an overview of advances in Raman spectroscopy published in 2018 in the Journal of Raman Spectroscopy (JRS) and, in addition, trends over the past decade across journals that have published papers important to the field of Raman spectroscopy. The trends are based on statistical data of article counts obtained from Clarivate Analytic's Web of Science Core Collection byyear and by subfield of Raman spectroscopy. Coverage is provided for presentations involving Raman spectroscopy at four international conferences this published in JRS in 2018 are highlighted and arragned by topics at the frontier of Raman spectroscopy. Based on these data, presentations, and publications, it is clear that Raman spectroscopy continues as an expanding field of research across a wide range of novel disciplines and applications that provide sensitive photonic information at the molecular level.KEYWORDS advances in Raman spectroscopy, applications of Raman spectroscopy, developments in Raman spectroscopy, review

show abstract

A silver self‐assembled monolayer‐decorated polydimethylsiloxane flexible substrate for in situ SERS detection of low‐abundance molecules

Cited by 33 publications

References 60 publications

Detection of Chlortetracycline Hydrochloride in Milk with a Solid SERS Substrate Based on Self-assembled Gold Nanobipyramids

Detection of Chlortetracycline Hydrochloride in Milk with a Solid SERS Substrate Based on Self-assembled Gold Nanobipyramids

A Rapid Detection Method for On-site Screening of Estazolam in Beverages with Au@Ag Core-shell Nanoparticles Paper-based SERS Substrate

Recent advances in linear and nonlinear Raman spectroscopy. Part XIII

Contact Info

Product

Resources

About