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Nanomaterials
Special Issues
Synthesis and Characterization of Plasmonic Nanostructures
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Synthesis and Characterization of Plasmonic Nanostructures

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 7078

Special Issue Editors

Dr. Mohamed Boutinguiza

E-Mail Website
Guest Editor
Applied Physics Department, School of Engineering, University of Vigo, Lagoas Marcosende s/n, 36310 Vigo, Pontevedra, Spain
Interests: laser materials processing (ablation, cutting, texturing, etc.); laser processing of biomaterials; laser synthesis and deposition of nanomaterials
Special Issues, Collections and Topics in MDPI journals
Dr. Mónica Fernández-Arias

E-Mail Website
Guest Editor
Applied Physics, University of Vigo, 36310 Vigo, Spain
Interests: laser materials processing; nanoparticles; nanomaterials characterization

Special Issue Information

Dear Colleagues,

The interaction between the incident light (photons) and the collective oscillation of electrons on metal surfaces is being extensively investigated to focus light below the diffraction limit, which has enabled tremendous growth in nanoplasmonics in the last decades. The interesting capacity of confining light at the nanoscale through surface plasmon resonance is influenced by the surrounding medium and can be controlled by the size, shape, and material nature of the used nanostructures. Engineering and designing plasmonic nanostructures by several methods and techniques to control plasmon resonance and electromagnetic field localization is driving many studies in different areas of science and technology such as surface enhance spectroscopy, sensing, photovoltaics, photothermal therapy, antimicrobial agents, photocatalysis, etc.

Although the development of this area has increased the applications of plasmonic nanomaterials, as well as the new methods of nanofabrication, controlling and reproducing the desired plasmonic structures remains a major challenge to overcome.

This Special Issue will include research papers addressing the most recent developments in this field to summarize the current state of the art in the synthesis and characterization of nanoplasmonic structures:

  • Synthesis and processing of plasmonic nanomaterials;
  • Functional plasmonic nanostructures;
  • Characterization of nanomaterials;
  • Plasmonic nanofabrication.

Prof. Dr. Mohamed Boutinguiza
Dr. Mónica Fernández-Arias
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanoplasmonics
  • plasmonic nanoparticles
  • nanophotonics
  • surface plasmon resonance
  • nanostructred materials
  • raman scattering
  • nanofabrication

Published Papers (3 papers)

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Research

16 pages, 3966 KiB  
Article
Antibacterial Activity of the Green Synthesized Plasmonic Silver Nanoparticles with Crystalline Structure against Gram-Positive and Gram-Negative Bacteria
by Hemn Hassan Afandy, Dana Khdr Sabir and Shujahadeen B. Aziz
Nanomaterials 2023, 13(8), 1327; https://doi.org/10.3390/nano13081327 - 10 Apr 2023
Cited by 14 | Viewed by 2348
Abstract
Nanoparticles (NPs) have attracted considerable interest in numerous fields, including agriculture, medicine, the environment, and engineering. The use of green synthesis techniques that employ natural reducing agents to reduce metal ions and form NPs is of particular interest. This study investigates the use [...] Read more.
Nanoparticles (NPs) have attracted considerable interest in numerous fields, including agriculture, medicine, the environment, and engineering. The use of green synthesis techniques that employ natural reducing agents to reduce metal ions and form NPs is of particular interest. This study investigates the use of green tea (GT) extract as a reducing agent for the synthesis of silver NPs (Ag NPs) with crystalline structure. Several analytical techniques, including UV-visible spectrophotometry, Fourier transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HR-TEM), and X-ray diffraction (XRD), were used to characterize the synthesized Ag NPs. The results of UV-vis revealed that the biosynthesized Ag NPs exhibited an absorbance plasmonic resonance peak at 470 nm. According to FTIR analyses, the attachment of Ag NPs to polyphenolic compounds resulted in a decrease in intensity and band shifting. In addition, the XRD analysis confirmed the presence of sharp crystalline peaks associated with face-centered cubic Ag NPs. Moreover, HR-TEM revealed that the synthesized particles were spherical and 50 nm in size on average. The Ag NPs demonstrated promising antimicrobial activity against Gram-positive (GP) bacteria, Brevibacterium luteolum and Staphylococcus aureus, and Gram-negative (GN) bacteria, Pseudomonas aeruginosa and Escherichia coli, with a minimal inhibitory concentration (MIC) of 6.4 mg/mL for GN and 12.8 mg/mL for GP. Overall, these findings suggest that Ag NPs can be utilized as effective antimicrobial agents. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Plasmonic Nanostructures)
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11 pages, 27846 KiB  
Article
Thermal Effect during Laser-Induced Plasmonic Heating of Polyelectrolyte-Coated Gold Nanorods in Well Plates
by Sujin Jiracheewanun, Michael B. Cortie and Dakrong Pissuwan
Nanomaterials 2023, 13(5), 845; https://doi.org/10.3390/nano13050845 - 24 Feb 2023
Cited by 1 | Viewed by 1836
Abstract
We examined the generation and transfer of heat when laser irradiation is applied to water containing a suspension of gold nanorods coated with different polyelectrolytes. The ubiquitous well plate was used as the geometry for these studies. The predictions of a finite element [...] Read more.
We examined the generation and transfer of heat when laser irradiation is applied to water containing a suspension of gold nanorods coated with different polyelectrolytes. The ubiquitous well plate was used as the geometry for these studies. The predictions of a finite element model were compared to experimental measurements. It is found that relatively high fluences must be applied in order to generate biologically relevant changes in temperature. This is due to the significant lateral heat transfer from the sides of the well, which strongly limits the temperature that can be achieved. A 650 mW continuous-wave (CW) laser, with a wavelength that is similar to the longitudinal plasmon resonance peak of the gold nanorods, can deliver heat with an overall efficiency of up to 3%. This is double the efficiency achievable without the nanorods. An increase in temperature of up to 15 °C can be achieved, which is suitable for the induction of cell death by hyperthermia. The nature of the polymer coating on the surface of the gold nanorods is found to have a small effect. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Plasmonic Nanostructures)
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15 pages, 5844 KiB  
Article
Plasmon-Enhanced Ultraviolet Luminescence in Colloid Solutions and Nanostructures Based on Aluminum and ZnO Nanoparticles
by Anna A. Lizunova, Dana Malo, Dmitry V. Guzatov, Ivan S. Vlasov, Ekaterina I. Kameneva, Ivan A. Shuklov, Maxim N. Urazov, Andrei A. Ramanenka and Victor V. Ivanov
Nanomaterials 2022, 12(22), 4051; https://doi.org/10.3390/nano12224051 - 17 Nov 2022
Cited by 3 | Viewed by 2308
Abstract
Aluminum nanoparticles attract scientific interest as a promising low-cost material with strong plasmon resonance in the ultraviolet region, which can be used in various fields of photonics. In this paper, for the first time, ultraviolet luminescence of zinc oxide nanoparticles in colloid solutions [...] Read more.
Aluminum nanoparticles attract scientific interest as a promising low-cost material with strong plasmon resonance in the ultraviolet region, which can be used in various fields of photonics. In this paper, for the first time, ultraviolet luminescence of zinc oxide nanoparticles in colloid solutions and nanostructure films in the presence of plasmonic aluminum nanoparticles 60 nm in size with a metal core and an aluminum oxide shell were studied. Mixture colloids of ZnO and Al nanoparticles in isopropyl alcohol solution with concentrations from 0.022 to 0.44 g/L and 0.057 to 0.00285 g/L, correspondingly, were investigated. The enhancement of up to 300% of ZnO emission at 377 nm in colloids mixtures with metal nanoparticles due to formation of Al-ZnO complex agglomerates was achieved. Plasmon nanostructures with different configurations of layers, such as Al on the surface of ZnO, ZnO on Al, sandwich-like structure and samples prepared from a colloidal mixture of ZnO and Al nanoparticles, were fabricated by microplotter printing. We demonstrated that photoluminescence can be boosted 2.4-fold in nanostructures prepared from a colloidal mixture of ZnO and Al nanoparticles, whereas the sandwich-like structure gave only 1.1 times the amplification of luminescence. Calculated theoretical models of photoluminescence enhancement of ideal and weak emitters near aluminum nanoparticles of different sizes showed comparable results with the obtained experimental data. Full article
(This article belongs to the Special Issue Synthesis and Characterization of Plasmonic Nanostructures)
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