Rapid and simple detection of sodium thiocyanate in milk using surface‐enhanced Raman spectroscopy based on silver aggregates

Lin, Xiang; Hasi, Wuliji; Lou, Xiutao; Lin, Shuang; Yang, Fang; Jia, Baohua; Cui, Yunan; Ba, Dexin; Lin, Derong; Lü, Zhiwei

doi:10.1002/jrs.4436

Cited by 45 publications

(18 citation statements)

References 28 publications

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“…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.

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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.

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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.

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“…Lin and co‐workers describe a rapid and simple method for the detection of sodium thiocyanate in milk using SERS with silver aggregate nanoparticles as the active substrate. Using trichloroacetic acid as protein precipitator, silver colloids aggregate spontaneously when mixing with samples during SERS measurement without the need of additional aggregating agent . Piergies and colleagues present a study of the interaction of N‐benzylamino(boronphenyl)methylphosphonic acid analogs with a gold colloidal surface under conditions of differing concentration and pH.…”

Section: Surface‐enhanced Raman Spectroscopymentioning

confidence: 99%

Recent advances in linear and non‐linear Raman spectroscopy. Part IX

Nafie

2015

J Raman Spectroscopy

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Coverage is also provided for topics from the conference ECONOS 2015 held in April in Leuven, Belgium. Finally, papers published in JRS in 2014 are highlighted and arranged by topics at the frontier of Raman spectroscopy. Taken from these various viewpoints, it is clear that Raman spectroscopy continues to be a rapidly expanding field that provides sensitive photonic information of matter at the molecular level in an ever-widening arena of novel applications.

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“…Although Raman spectroscopy is a versatile technique for chemical characterization in materials science, geology, microelectronics and biology, it is constrained by a weak signal intensity relative to the background [3]. There have been many efforts to amplify Raman scattering, such as surfaceenhanced Raman spectroscopy (SERS) [4], and tip-enhanced Raman spectroscopy (TERS) [5], with the goal to achieve molecular-level sensitivity [3,6]. In particular, atomic force microscopy (AFM) with metalized probe tips, i.e.…”

Section: Introductionmentioning

confidence: 99%

Si@Cu@Au AFM tips for tip-enhanced Raman spectrum

Lü

Wang

et al. 2015

Sci. China Chem.

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Tip-enhanced Raman spectrum (TERS) is a scanning probe technique for acquiring chemical information at high spatial resolution and with high chemical sensitivity. The sensitivity of TERS with atomic force microscopy (AFM) system is mainly determined by the metalized tips. Here, we report a fabrication protocol for AFM-TERS tips that incorporate a copper (Cu) primer film between a gold (Au) layer and a Si AFM tips. They were fabricated by coating the Si tip with a 2 nm Cu layer prior to adding a 20 nm Au layer. For top illumination TERS experiments, these tips exhibited superior TERS performance relative to that observed for tips coated with Au only. Samples included graphene, thiophenol and brilliant cresyl blue. The results may derive from the surface roughness of the tip apex and a Cu/Au synergism of local surface plasmon resonances. tip enhanced Raman spectrum, metalized tip, graphene, thiophenol, brilliant crystal blue

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Rapid and simple detection of sodium thiocyanate in milk using surface‐enhanced Raman spectroscopy based on silver aggregates

Cited by 45 publications

References 28 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

Recent advances in linear and non‐linear Raman spectroscopy. Part IX

Si@Cu@Au AFM tips for tip-enhanced Raman spectrum

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