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Magnetochemistry
Special Issues
New Advances in Magnetic–Plasmonic Nanostructured Materials
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New Advances in Magnetic–Plasmonic Nanostructured Materials

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Materials".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 4043

Special Issue Editors

Dr. Promod Kumar

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Guest Editor
Department of Physics, University of the Free State, Bloemfontein 9300, South Africa
Interests: smart nanomaterials; plasmonics; Mie theory simulation; SERS; XPS; TOF-SIMS; nonlinear optical properties: Z scan technique, photocatalytic and antimicrobial studies ((energy and environmental applications), water splitting
Dr. Jai Prakash

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Guest Editor
Department of Chemistry, National Institute of Technology Hamirpur, Hamirpur 177005, Himachal Pradesh, India
Interests: nanomaterials; nanocomposites; photocatalysts; plasmonic photocatalysts; visible light catalysts; solar cell, SERS sensing; hybrid nanomaterials; metal oxide semiconductors
Special Issues, Collections and Topics in MDPI journals
Dr. Vinod Kumar

E-Mail Website
Guest Editor
Department of Physics, The University of the West Indies, St. Augustine, Trinidad and Tobago
Interests: oxide materials; solid state lighting; solar cells
Dr. Mohan Chandra Mathpal

E-Mail Website
Guest Editor
Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, Chile
Interests: plasmonic metamaterials; conducting/semiconducting thin films; graphene-based noble metal nanoclusters and composites; dye-sensitized solar cells; Nitrogen-vacancy (NV) defects in nanodiamonds; heterostructures; sensors; oxides nanomaterials; DMS and magnetic nanostructures; optoelectronics nanomaterials; structural and optical properties of hybrid nanostructures for superior energy harvesting applications

Special Issue Information

Dear Colleagues,

Magnetic–plasmonic nanostructured materials (MPNMs) are promising materials for various kinds of device formations, including surface-enhanced Raman spectroscopy (SERS) studies for biomedical applications. MPNMs present synergistically exceptional magnetic and plasmonic features in unique physicochemical processes, including various biomedical applications, such as magnetic hyperthermia, photothermal therapy, drug delivery, bioimaging, and biosensing. Research is currently focused on engineering the texture and morphology of MPNMs to improve their surface properties using these nanostructures for SERS applications. The unique physicochemical properties of tunable plasmonic nanostructures (PNs) combined with magnetic nanoparticles have emerged as an excellent sensing platform with enhanced abilities and a high degree of sensitivity for the detection of particularly small bio-molecules. MPNMs are widely used in surface-enhanced vibrational spectroscopies and particularly in SERS due to their unique localized surface plasmon resonance (LSPR) properties.

We hope to establish a collection of papers that will be of interest to scholars in the field. Contributions in the form of full papers, reviews, and communications about the related topics are very welcome.

Dr. Promod Kumar
Dr. Jai Prakash
Dr. Vinod Kumar
Dr. Mohan Chandra Mathpal
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. Magnetochemistry is an international peer-reviewed open access monthly 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 2700 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

  • MPNMs
  • SERS
  • LSPR
  • plasmonic nanostructures
  • biomedical applications

Published Papers (2 papers)

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Research

15 pages, 5227 KiB  
Article
Photothermal Hyperthermia Study of Ag/Ni and Ag/Fe Plasmonic Particles Synthesized Using Dual-Pulsed Laser
by Imran Ali, Jun Chen, Saeed Ahmed Khan, Yasir Jamil, Aqeel Ahmed Shah, Abdul Karim Shah, Sadaf Jamal Gilani, May Nasser Bin Jumah, Yusra Fazal, Yunxiang Pan and Zhonghua Shen
Magnetochemistry 2023, 9(3), 59; https://doi.org/10.3390/magnetochemistry9030059 - 22 Feb 2023
Cited by 2 | Viewed by 1374
Abstract
Magneto-plasmonic Ag/Ni and Ag/Fe nanoparticles (NPs) were synthesized in this work using the environmentally safe and contaminant-free dual-pulsed Q-switched Nd:YAG 1064 nm laser ablation method. The optical and magnetic characteristics of synthesized nanomaterials were investigated using a vibrating sample magnetometer and an ultraviolet-visible [...] Read more.
Magneto-plasmonic Ag/Ni and Ag/Fe nanoparticles (NPs) were synthesized in this work using the environmentally safe and contaminant-free dual-pulsed Q-switched Nd:YAG 1064 nm laser ablation method. The optical and magnetic characteristics of synthesized nanomaterials were investigated using a vibrating sample magnetometer and an ultraviolet-visible absorption spectrometer. According to transmission electron microscopy (TEM), the shape of Ag/Ni and Ag/Fe NPs seems to be spherical, with mean diameters of 7.3 nm and 11.5 nm, respectively. X-ray diffraction (XRD) was used in order to investigate and describe the phase structures of the synthesized nanomaterials. The synthesized NPs reached maximum temperatures such as 48.9, 60, 63.4, 70, 75, and 79 °C for Ag/Ni nanofluid and 52, 56, 60, 68, 71, and 72 °C for Ag/Fe nanofluid when these nanofluids were subjected to an NIR 808 nm laser with operating powers of 1.24, 1.76, 2.36, 2.91, 3.5, and 4 W, respectively. Because of the plasmonic hyperthermia properties of nanoparticles, nanofluids display higher temperature profiles than pure water. According to these findings, plasmonic nanoparticles based on silver might be used to treat hyperthermia. Full article
(This article belongs to the Special Issue New Advances in Magnetic–Plasmonic Nanostructured Materials)
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15 pages, 4433 KiB  
Article
Study of Defect-Induced Chemical Modifications in Spinel Zinc-Ferrites Nanostructures by In-Depth XPS Investigation
by Promod Kumar, Mohan Chandra Mathpal, Gajendra Kumar Inwati, Sanjay Kumar, Mart-Mari Duvenhage, Wiets Daniel Roos and Hendrik C. Swart
Magnetochemistry 2023, 9(1), 20; https://doi.org/10.3390/magnetochemistry9010020 - 03 Jan 2023
Cited by 10 | Viewed by 1871
Abstract
Spinel zinc ferrite nanomaterials with exceptional physiochemical properties are potential candidates for various applications in the energy and environmental fields. Their properties can be tailored using several methods to widen their applications. The chemical combustion approach was followed to prepare the spinel zinc [...] Read more.
Spinel zinc ferrite nanomaterials with exceptional physiochemical properties are potential candidates for various applications in the energy and environmental fields. Their properties can be tailored using several methods to widen their applications. The chemical combustion approach was followed to prepare the spinel zinc ferrite nanomaterials, which were then subjected to thermal treatment at a fixed temperature. Thermal heat treatment at a fixed temperature was used to evaluate the phase and morphological characteristics of the prepared spinel zinc−ferrite nanocomposites. Various techniques were employed to examine the samples, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). XPS and X-ray−induced Auger electron spectroscopy were used to extensively examine the surface characteristics of the zinc−ferrite. To study the actual chemical states of the synthesized spinel zinc ferrite nanomaterials and the defects created during the thermal treatment, an extensive investigation of the kinetic energy of the X-ray−induced Zn L3M45M45 and Fe L3M45M45 was conducted. Finally, a detailed analysis of the Wagner plot using the modified Auger parameter was performed to verify the exact chemical states of Zn and Fe. Thus, the findings of the investigation show that XPS is a promising and powerful technique to study the composition and chemical states of spinel zinc ferrites, providing an understanding of changes in their properties for functional applications. Full article
(This article belongs to the Special Issue New Advances in Magnetic–Plasmonic Nanostructured Materials)
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