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Advances in Electron Spin Resonance (ESR) Spectroscopy
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Advances in Electron Spin Resonance (ESR) Spectroscopy

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Biosciences and Bioengineering".

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 5347

Special Issue Editors

Prof. Dr. Bernadeta Dobosz

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Guest Editor
Functional Materials Physics Division, Faculty of Physics, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
Interests: nanomedicine; biomaterials; electron spin resonance application; biosignals; medical physics
Special Issues, Collections and Topics in MDPI journals
Dr. Paweł Ramos

E-Mail Website
Guest Editor
Department of Biophysics, School of Pharmacy and Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia in Katowice, Jedności 8, 41-200 Sosnowiec, Poland
Interests: EPR spectroscopy; free radicals; antioxidants; TGA; DTA; compatibility API with excipients; colorimetric analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The electron spin resonance (ESR) method is a powerful tool for studing the structure and dynamics of paramagnetic species, including free radicals. It can be used in various fields of research, such as biology and medicine, application of nanomaterials and polymers, dating of geological and archaeological finds, and environmental studies. It is also popular as a method of imaging.

The aim of this Special Issue on “Advances in ESR Spectroscopy” is to highlight the wide possibilities of applying this method in various fields of research as well as showing the currently developed ways of its improvement. It covers the application of the ESR method in different areas, such as interactions between complex materials and biological structures, the impact of irradiation on studied samples, the application in food and environmental sciences as a tool for dating in geology and archaeology, the use of new spin labels and traps, control of chemical reactions related to radicals processes, and imaging in biology and medicine.

It is our pleasure to invite you to contribute an original research paper, a short communication, or a review to this issue.

Prof. Dr. Bernadeta Dobosz
Dr. Paweł Ramos
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. Applied Sciences 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 2400 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

  • electron spin resonance
  • nanomedicine
  • ESR imaging
  • free radicals and paramagnetic species
  • biology and medicine
  • geological/archaeological dating
  • new materials/polymers
  • food
  • chemical reactions
  • ionizing radiation and dosimetry

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Published Papers (2 papers)

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Research

14 pages, 3808 KiB  
Article
Impact of Vanadium Complexes with Tetradentate Schiff Base Ligands on the DPPC and EYL Liposome Membranes: EPR Studies
by Dariusz Man, Barbara Pytel and Marzena Białek
Appl. Sci. 2023, 13(5), 3272; https://doi.org/10.3390/app13053272 - 3 Mar 2023
Cited by 1 | Viewed by 1399
Abstract
This paper investigates the effect of three vanadium complexes with Schiff base-type tetradentate ligands of general formula N,N′-1,2-cyclohexylenebis(3,5-dichlorosalicylideneiminate) (V1); LVCl2 (L = N,N′-1,2-cyclohexylenebis(5-chlorosalicylideneiminate) (V2); and N,N′-1,3propylenebis (salicylideneiminate) (V3) on the fluidity of liposome membranes obtained by [...] Read more.
This paper investigates the effect of three vanadium complexes with Schiff base-type tetradentate ligands of general formula N,N′-1,2-cyclohexylenebis(3,5-dichlorosalicylideneiminate) (V1); LVCl2 (L = N,N′-1,2-cyclohexylenebis(5-chlorosalicylideneiminate) (V2); and N,N′-1,3propylenebis (salicylideneiminate) (V3) on the fluidity of liposome membranes obtained by the sonication of natural lecithin (EYL) and synthetic lecithin (DPPC). The study was carried out with TEMPO and 16DOXYL spin probes using the EPR technique. The results show that the effect of the complexes on the fluidity of liposomes whose membranes are in the liquid crystalline phase is much stronger as compared to the liposome membranes in the gel phase. Full article
(This article belongs to the Special Issue Advances in Electron Spin Resonance (ESR) Spectroscopy)
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19 pages, 8445 KiB  
Article
Spin Probes as Scavengers of Free Radicals in Cells
by Bernadeta Dobosz, Ryszard Krzyminiewski, Małgorzata Kucińska, Marek Murias, Grzegorz Schroeder and Joanna Kurczewska
Appl. Sci. 2022, 12(16), 7999; https://doi.org/10.3390/app12167999 - 10 Aug 2022
Cited by 4 | Viewed by 2415
Abstract
Spin probes can be used to monitor biological membranes, including the penetration of different molecules into cells. The aim of the present studies was an investigation of the endocytosis process of two spin labels—2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO) and 4-hydroxy-TEMPO (TEMPOL)—into yeast cells and a leukemia [...] Read more.
Spin probes can be used to monitor biological membranes, including the penetration of different molecules into cells. The aim of the present studies was an investigation of the endocytosis process of two spin labels—2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO) and 4-hydroxy-TEMPO (TEMPOL)—into yeast cells and a leukemia cell line (HL-60, ATCC CCL-240) by Electron Spin Resonance (ESR). The ESR method is helpful for the direct detection of free radicals. The cell incubation and endocytosis of spin probes were carried out at 310 K. In contrast, the ESR measurements of yeast cells and a leukemia cell line with spin probes were at 240 K. Spectral differentiation was observed; hence, the spin probes present in suspension and attached to the cell membrane could be distinguished. The ESR signal changes of spin probes depended on spin probe concentration, cell number, and type of cell (healthy/cancerous). Additionally, the effect of external factors (oxygen and vitamin C) on the ESR signal decay of spin markers in the cell solution was established. The experimental results prove that the spin probes (TEMPO and TEMPOL) could scavenge free radicals inside the cell. At the same time, the mechanism of spin probe interaction in suspension was determined based on the measurements at low temperatures. Full article
(This article belongs to the Special Issue Advances in Electron Spin Resonance (ESR) Spectroscopy)
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