One-Dimensional Magneto-Optical Nanostructures: Template Synthesis, Structure, Properties, and Application in Spectroscopy Based on Plasmon Resonance

Kozhina, E. P.; Kulesh, Ekaterina; Bedin, S. A.; Долуденко, И. М.; Piryazev, Alexey A.; Korolkov, Ilya V.; Kozlovskiy, Artem L.; Zdorovets, Maxim V.; Рогачев, А. А.; Shumskaya, Elena

doi:10.1109/lmag.2021.3138346

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…Magnetic-plasmonic nanoparticles (NPs) made of a magnetic core coated with plasmonic metals are of particular interest for forming SERS substrates, as they offer advantages over nanostructures made of pure noble metals [31]. Firstly, magnetic-plasmonic NPs can be ordered by a magnetic field to form controlled hot-spots for optimal amplification of the Raman signal by several orders of magnitude [32,33], and to obtain a finer spectrum structure. Such SERS substrates may be used in medicine; for example, magneto-plasmonic nanotubes were proposed for the extremely sensitive and specific detection of trace BPA down to 100 ng mL −1 [34].…”

Section: Introductionmentioning

confidence: 99%

Detection of Polynitro Compounds at Low Concentrations by SERS Using Ni@Au Nanotubes

et al. 2022

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The identification of high-energy compounds in trace concentrations not only in the laboratory, but also in field conditions is of particular interest. The process should be clear, easy, and well-recognizable. We formed SERS-active substrates by using elongated nickel nanotubes synthesized by electrochemical deposition in the pores of ion-track membranes and coated them with gold for further application in the detection of low concentrations of analytes. The substrates were characterized using various techniques to determine the morphology of the nanotubes and modifying gold layer. The possibility of obtaining two types of gold-layer morphology was shown: in the form of a smooth film up to 20–50 nm thick and a coating with nanoneedles up to 250 nm long. The electric fields around the nanotubes were simulated at a laser wavelength of 532 nm to demonstrate the influence of the gold-layer morphology on the field distribution. The “needle” morphology was chosen to form the most effective SERS-active substrates for detection of low concentrations of aromatic polynitro compounds. The spectral peaks were identified by comparing the model and experimental Raman spectra at concentrations down to 10−5 M. Within this limit, all peaks (“fingerprints” of the substance) were clearly distinguishable.

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Section: Introductionmentioning

confidence: 99%

Detection of Polynitro Compounds at Low Concentrations by SERS Using Ni@Au Nanotubes

et al. 2022

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“…Each material imparts a specific combination of chemical, mechanical, and physical (electrical, optical, and structural) properties to the membrane, which makes it possible to obtain a wide variety of pore structures and realize completely different functions. Their main functional property (filters remains) enriched with additional capabilities, which open the pay to such applications as, for example, diffraction X-ray filters [19], mass spectrometry [20], structures for adsorber and ultrafiltration [21,22], metasurfaces for SERS analysis [23][24][25][26][27]. Polyimide TMs decorated with polyvinylpyrrolidone were used as separators for a self-assembling protective layer on a lithium-metal anode [28].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Mechanical Stress Micro Fields around Pores on the Strength of Elongated Etched Membrane

et al. 2022

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The investigation of the mechanical properties of polymer track-etched membranes (TMs) has attracted significant attention in connection with the extended region of their possible applications. In the present work, the mechanical stress fields around the pores of an elongated polyethylene terephthalate TM and around the 0.3 mm holes in model polymer specimens were studied in polarized light and with the finite element method. A break-up experiment showed the controlling role of stress field interaction in the forming of a microcrack system and the generation of a main crack with rupture of the TM (or model pattern). This interaction depended on the relative distance between the pores (holes) and their orientation. The results of the calculations of the pore distribution function over the surface of the TM via the net method and wavelet analysis are presented. The fractal character of pore distribution was established. The geometric characteristics of the TM pore system as initial defects are inherited by obtaining TM-based composites.

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Magnetic-plasmonic Ni nanotubes covered with gold for improvement of SERS analysis

Korolkov

Shumskaya

Kozlovskiy

et al. 2022

Journal of Alloys and Compounds

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One-Dimensional Magneto-Optical Nanostructures: Template Synthesis, Structure, Properties, and Application in Spectroscopy Based on Plasmon Resonance

Cited by 5 publications

References 32 publications

Detection of Polynitro Compounds at Low Concentrations by SERS Using Ni@Au Nanotubes

Detection of Polynitro Compounds at Low Concentrations by SERS Using Ni@Au Nanotubes

The Influence of Mechanical Stress Micro Fields around Pores on the Strength of Elongated Etched Membrane

Magnetic-plasmonic Ni nanotubes covered with gold for improvement of SERS analysis

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