Laser-induced synthesis of metallic silver-gold nanoparticles encapsulated in carbon nanospheres for surface-enhanced Raman spectroscopy and toxins detection

Povolotskiy, Alexey V.; Povolotckaia, Anastasia; Petrov, Yu. V.; Manshina, Alina; Tunik, Sergey P.

doi:10.1063/1.4820841

Cited by 23 publications

(15 citation statements)

References 34 publications

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“…Au-Ag@a-C:H nanoparticles were prepared from solution of supramolecule complex by laser-induced liquid phase deposition method 43 . Unfocused beam of the He-Cd laser (CW, λ = 325 nm, I = 0.1 W/cm 2 ) was used to irradiate the solution, the diameter of laser spot was ca.…”

Section: Methodsmentioning

confidence: 99%

Laser-induced transformation of supramolecular complexes: approach to controlled formation of hybrid multi-yolk-shell Au-Ag@a-C:H nanostructures

Manshina

Grachova

Povolotskiy

et al. 2015

Sci Rep

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In the present work an efficient approach of the controlled formation of hybrid Au–Ag–C nanostructures based on laser-induced transformation of organometallic supramolecular cluster compound is suggested. Herein the one-step process of the laser-induced synthesis of hybrid multi-yolk-shell Au-Ag@a-C:H nanoparticles which are bimetallic gold-silver subnanoclusters dispersed in nanospheres of amorphous hydrogenated a-C:H carbon is reported in details. It has been demonstrated that variation of the experimental parameters such as type of the organometallic precursor, solvent, deposition geometry and duration of laser irradiation allows directed control of nanoparticles’ dimension and morphology. The mechanism of Au-Ag@a-C:H nanoparticles formation is suggested: the photo-excitation of the precursor molecule through metal-to-ligand charge transfer followed by rupture of metallophilic bonds, transformation of the cluster core including red-ox intramolecular reaction and aggregation of heterometallic species that results in the hybrid metal/carbon nanoparticles with multi-yolk-shell architecture formation. It has been found that the nanoparticles obtained can be efficiently used for the Surface-Enhanced Raman Spectroscopy label-free detection of human serum albumin in low concentration solution.

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Section: Methodsmentioning

confidence: 99%

Laser-induced transformation of supramolecular complexes: approach to controlled formation of hybrid multi-yolk-shell Au-Ag@a-C:H nanostructures

Manshina

Grachova

Povolotskiy

et al. 2015

Sci Rep

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“…The linear birefringence remains nearly constant (Δ n = 0.09 ± 0.005) over a spectral range of 400–700 nm, which is generally comparable to naturally birefringent materials, but it outperforms other orthorhombic crystalline structures . Furthermore, the combination of the field enhancement introduced by the plasmonic Au–Ag nanoparticle inclusions and the birefringence suggest a strong potential for opto‐electronics, nanophotonic, nonlinear optical experiments, and applications …”

mentioning

confidence: 89%

“…Fabrication of such structures, has been an active research field with applications ranging from surface enhanced Raman scattering (SERS) to electrochemical processes, enhanced plasmonics response, and optical sensing . In recent years, laser induced deposition has been reported as a means for the controllable fabrication of such hybrids . In this process, a laser source is used to trigger a decomposition and transformation of precursor molecules dissolved in a liquid followed by the formation of nanoscale or nanostructured materials.…”

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confidence: 99%

Investigating the Optical Properties of a Laser Induced 3D Self‐Assembled Carbon–Metal Hybrid Structure

Butt

Lesina

Neugebauer

et al. 2019

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In the last decade, nano-optics has emerged as a scientific field, pushing the boundaries of science. [1] A very important subcategory of this field is the study and fabrication of various 2D and 3D artificial materials, based on layers of structured dielectrics and metals. [2] The reason for the interest in these metamaterials and metasurfaces is the vast variety of applications, such as guiding, shaping, and focusing of light beams, the development of ultrathin highly efficient polarizing elements and many more. [3] Recently, orthorhombic carbon phase structures were theoretically predicted, with enhanced optical and structural properties. [4][5][6][7] Carbon allotropes and carbon hybrid materials with embedded metal structures, have been proven to be a beneficial building-block in opto-electronicCarbon-based and carbon-metal hybrid materials hold great potential for applications in optics and electronics. Here, a novel material made of carbon and gold-silver nanoparticles is discussed, fabricated using a laser-induced self-assembly process. This self-assembled metamaterial manifests itself in the form of cuboids with lateral dimensions on the order of several micrometers and a height of tens to hundreds of nanometers. The carbon atoms are arranged following an orthorhombic unit cell, with alloy nanoparticles intercalated in the crystalline carbon matrix. The optical properties of this metamaterial are analyzed experimentally using a microscopic Müller matrix measurement approach and reveal a high linear birefringence across the visible spectral range. Theoretical modeling based on local-field theory applied to the carbon matrix links the birefringence to the orthorhombic unit cell, while finite-difference time-domain simulations of the metamaterial relates the observed optical response to the distribution of the alloy nanoparticles and the optical density of the carbon matrix. Orthorhombic Carbon@Au-AgThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.

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“…In this paper, we address this goal with the synthesis of metal/carbon composites via the laser-induced deposition method already described for carbon-encapsulated Ag/Au nanoparticles (AgAu/C) [31–33]. This practically appealing one-step technique bases on the photo-induced decomposition of a dissolved organometallic complex and the subsequent self-organization into hybrid metal/carbon nanostructures with controlled composition and morphology [32].…”

Section: Introductionmentioning

confidence: 99%

Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability

Haschke

Pankin

Mikhailovskii

et al. 2019

Beilstein J. Nanotechnol.

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For the oxidation of water to dioxygen, oxide-covered ruthenium metal is known as the most efficient catalyst, however, with limited stability. Herein, we present a strategy for incorporating a Ru/C composite onto a novel nanoporous electrode surface with low noble metal loading and improved stability. The Ru/C is coated on the pore walls of anodic alumina templates in a one-step laser-induced deposition method from Ru3(CO)12 solutions. Scanning electron microscopy proves the presence of a continuous Ru/C layer along the inner pore walls. The amorphous material consists of metallic Ru incorporated in a carbonaceous C matrix as shown by X-ray diffraction combined with Raman and X-ray photoelectron spectroscopies. These porous electrodes reveal enhanced stability during water oxidation as compared to planar samples at pH 4. Finally, their electrocatalytic performance depends on the geometric parameters and is optimized with 13 μm pore length, which yields 2.6 mA cm−2, or 49 A g−1, at η = 0.20 V.

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Laser-induced synthesis of metallic silver-gold nanoparticles encapsulated in carbon nanospheres for surface-enhanced Raman spectroscopy and toxins detection

Abstract: Articles you may be interested inStudies on adsorption of mono-and multi-chromophoric hemicyanine dyes on silver nanoparticles by surfaceenhanced resonance raman and theoretical calculations

Cited by 23 publications

References 34 publications

Laser-induced transformation of supramolecular complexes: approach to controlled formation of hybrid multi-yolk-shell Au-Ag@a-C:H nanostructures

Laser-induced transformation of supramolecular complexes: approach to controlled formation of hybrid multi-yolk-shell Au-Ag@a-C:H nanostructures

Investigating the Optical Properties of a Laser Induced 3D Self‐Assembled Carbon–Metal Hybrid Structure

Nanoporous water oxidation electrodes with a low loading of laser-deposited Ru/C exhibit enhanced corrosion stability

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