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1

Hagen, Wilfred R. "Metallomic EPR spectroscopy." Metallomics 1, no. 5 (2009): 384. http://dx.doi.org/10.1039/b907919j.

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2

Froncisz, Wojciech, and Małgorzata Jeleń. "Multiquantum EPR spectroscopy." Radiation Physics and Chemistry 45, no. 6 (1995): 986. http://dx.doi.org/10.1016/0969-806x(95)93980-k.

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3

van Gastel, Maurice. "Pulsed EPR spectroscopy." Photosynthesis Research 102, no. 2-3 (2009): 367–73. http://dx.doi.org/10.1007/s11120-009-9422-6.

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4

Petrișor, D. M., G. Damian, and S. Simon. "Epr Testing of Organic Versus Conventional Musaceae Fruits." Studia Universitatis Babeș-Bolyai Physica 65, no. 1-2 (2020): 49–56. http://dx.doi.org/10.24193/subbphys.2020.06.

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"In the present study, the EPR spectroscopy was used to evidence differences in fruits of organically and conventionally grown bananas belonging to musaceae family. If in the investigated samples would be detected specific changes related to paramagnetic resonant centers, these could be regarded as a spectroscopic fingerprint in the differentiation of the organic and conventional fruits and vegetables. The EPR spectra were recorded from freeze-dried shell and pulp samples. The main paramagnetic species (iron, manganese and native semiquinone free radical) delivered for the investigated samples
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5

Iravani, Siavash, and Ghazaleh Jamalipour Soufi. "Electron paramagnetic resonance (EPR) spectroscopy: Food, biomedical and pharmaceutical analysis." Biomedical Spectroscopy and Imaging 9, no. 3-4 (2020): 165–82. http://dx.doi.org/10.3233/bsi-200206.

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Electron paramagnetic resonance (EPR) spectroscopy can be applied as an effective and non-invasive spectroscopic method for analyzing samples with unpaired electrons. EPR is suitable for the quantification of radical species, assessment of redox chemical reaction mechanisms in foods, evaluation of the antioxidant capacity of food, as well as for the analysis of food quality, stability, and shelf life. It can be employed for evaluating and monitoring the drug release processes, in vitro and in vivo. EPR can be employed for the direct detection of free radical metabolites, and the evaluation of
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6

Тimakova, R. T., S. L. Tikhonov, A. N. Tararkov, and D. O. Vakhnin. "EPR spectroscopy of spices." Proceedings of the Voronezh State University of Engineering Technologies, no. 4 (January 1, 2016): 187–93. http://dx.doi.org/10.20914/2310-1202-2016-4-187-193.

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7

Hagen, Wilfred R. "Broadband Transmission EPR Spectroscopy." PLoS ONE 8, no. 3 (2013): e59874. http://dx.doi.org/10.1371/journal.pone.0059874.

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8

Abi Aad, E., and A. Aboukaı̈s. "Characterisation by EPR spectroscopy." Catalysis Today 56, no. 4 (2000): 371–78. http://dx.doi.org/10.1016/s0920-5861(99)00297-7.

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9

BLONDIN, G., and Y. M. FRAPART. "ChemInform Abstract: EPR Spectroscopy." ChemInform 28, no. 21 (2010): no. http://dx.doi.org/10.1002/chin.199721296.

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10

Rhodes, Christopher J. "Magnetic Resonance Spectroscopy." Science Progress 100, no. 3 (2017): 241–92. http://dx.doi.org/10.3184/003685017x14993478654307.

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Since the original observation by Zeeman, that spectral lines can be affected by magnetic fields, ‘magnetic spectroscopy’ has evolved into the broad arsenal of techniques known as ‘magnetic resonance’. This review focuses on nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR), and muon spin resonance (μSR): methods which have provided unparalleled insight into the structures, reactivity and dynamics of molecules, and thereby contributed to a detailed understanding of important aspects of chemistry, and the materials, biomedical, and environmental sciences. Magnetic resonanc
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11

Stopka, P., J. Křížová, N. Vrchotová, et al. "Antioxidant activity of wines and related matters studied by EPR spectroscopy." Czech Journal of Food Sciences 26, Special Issue (2009): S49—S54. http://dx.doi.org/10.17221/248/2008-cjfs.

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Antioxidant activity and free radicals were studied in various parts of Vitis vinifera plant in vivo and in wines using EPR spectroscopy. Antioxidative properties of polyphenolic substances play an important role for the evaluation of quality of natural products. Determination of antioxidant activity of experimental samples by EPR method was based on measuring the changes of EPR spectrum of stable nitroxide radicals as a result of their interaction with antioxidants. In the leaves of <i>Vitis vinifera</i> vine varieties for the production of red wines there was observed a higher de
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12

Abhyankar, Nandita, Amit Agrawal, Jason Campbell, Thorsten Maly, Pragya Shrestha, and Veronika Szalai. "Recent advances in microresonators and supporting instrumentation for electron paramagnetic resonance spectroscopy." Review of Scientific Instruments 93, no. 10 (2022): 101101. http://dx.doi.org/10.1063/5.0097853.

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Electron paramagnetic resonance (EPR) spectroscopy characterizes the magnetic properties of paramagnetic materials at the atomic and molecular levels. Resonators are an enabling technology of EPR spectroscopy. Microresonators, which are miniaturized versions of resonators, have advanced inductive-detection EPR spectroscopy of mass-limited samples. Here, we provide our perspective of the benefits and challenges associated with microresonator use for EPR spectroscopy. To begin, we classify the application space for microresonators and present the conceptual foundation for analysis of resonator s
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13

Möbius, Klaus, Wolfgang Lubitz, Nicholas Cox, and Anton Savitsky. "Biomolecular EPR Meets NMR at High Magnetic Fields." Magnetochemistry 4, no. 4 (2018): 50. http://dx.doi.org/10.3390/magnetochemistry4040050.

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In this review on advanced biomolecular EPR spectroscopy, which addresses both the EPR and NMR communities, considerable emphasis is put on delineating the complementarity of NMR and EPR regarding the measurement of interactions and dynamics of large molecules embedded in fluid-solution or solid-state environments. Our focus is on the characterization of protein structure, dynamics and interactions, using sophisticated EPR spectroscopy methods. New developments in pulsed microwave and sweepable cryomagnet technology as well as ultrafast electronics for signal data handling and processing have
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14

Drzewiecki, A., and P. B. Sczaniecki. "Wavelet Analysis in EPR Spectroscopy." Acta Physica Polonica A 108, no. 1 (2005): 73–79. http://dx.doi.org/10.12693/aphyspola.108.73.

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15

Morton, John R., Keith F. Preston, and Paul J. Krusic. "EPR spectroscopy of fullerene adducts." Hyperfine Interactions 86, no. 1 (1994): 763–77. http://dx.doi.org/10.1007/bf02068976.

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16

Heckmann, J., St Goertz, W. Meyer, E. Radtke, and G. Reicherz. "EPR spectroscopy at DNP conditions." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 526, no. 1-2 (2004): 110–16. http://dx.doi.org/10.1016/j.nima.2004.03.160.

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17

van Gastel, Maurice. "Erratum to: Pulsed EPR spectroscopy." Photosynthesis Research 102, no. 2-3 (2009): 375. http://dx.doi.org/10.1007/s11120-009-9495-2.

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18

Konovalov, A. A., and V. F. Tarasov. "Millimeter and submillimeter EPR spectroscopy." Radiophysics and Quantum Electronics 50, no. 10-11 (2007): 813–22. http://dx.doi.org/10.1007/s11141-007-0072-2.

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19

Timofeev, Ivan O., Larisa V. Politanskaya, Evgeny V. Tretyakov, et al. "Fullerene-based triplet spin labels: methodology aspects for pulsed dipolar EPR spectroscopy." Physical Chemistry Chemical Physics 24, no. 7 (2022): 4475–84. http://dx.doi.org/10.1039/d1cp05545c.

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20

Dorlet, Pierre, Guillaume Gerbaud, Emilien Etienne, Stéphane Grimaldi, Bruno Guigliarelli, and Valérie Belle. "EPR-MRS site: EPR spectroscopy for the study of biomolecules." Biochimica et Biophysica Acta (BBA) - Bioenergetics 1863 (September 2022): 148685. http://dx.doi.org/10.1016/j.bbabio.2022.148685.

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21

Meron, Shelly, Yulia Shenberger, and Sharon Ruthstein. "The Advantages of EPR Spectroscopy in Exploring Diamagnetic Metal Ion Binding and Transfer Mechanisms in Biological Systems." Magnetochemistry 8, no. 1 (2021): 3. http://dx.doi.org/10.3390/magnetochemistry8010003.

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Electron paramagnetic resonance (EPR) spectroscopy has emerged as an ideal biophysical tool to study complex biological processes. EPR spectroscopy can follow minor conformational changes in various proteins as a function of ligand or protein binding or interactions with high resolution and sensitivity. Resolving cellular mechanisms, involving small ligand binding or metal ion transfer, is not trivial and cannot be studied using conventional biophysical tools. In recent years, our group has been using EPR spectroscopy to study the mechanism underlying copper ion transfer in eukaryotic and prok
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22

Telser, Joshua, Luca A. Pardi, J. Krzystek, and Louis-Claude Brunel. "EPR Spectra from “EPR-Silent” Species: High-Field EPR Spectroscopy of Aqueous Chromium(II)." Inorganic Chemistry 37, no. 22 (1998): 5769–75. http://dx.doi.org/10.1021/ic9806683.

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23

Telser, Joshua, Luca A. Pardi, J. Krzystek, and Louis-Claude Brunel. "EPR Spectra from “EPR-Silent” Species: High-Field EPR Spectroscopy of Aqueous Chromium(II)." Inorganic Chemistry 39, no. 8 (2000): 1834. http://dx.doi.org/10.1021/ic9902828.

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24

Goldberg, David P., Joshua Telser, J. Krzystek, et al. "EPR Spectra from “EPR-Silent” Species: High-Field EPR Spectroscopy of Manganese(III) Porphyrins." Journal of the American Chemical Society 119, no. 37 (1997): 8722–23. http://dx.doi.org/10.1021/ja971169o.

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25

Guzik, Grzegorz P., Wacław Stachowicz, and Jacek Michalik. "Identification of irradiated dried fruits using EPR spectroscopy." Nukleonika 60, no. 3 (2015): 627–31. http://dx.doi.org/10.1515/nuka-2015-0093.

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Abstract The dominating carbohydrates in fruits are monosaccharides like fructose, glucose, sorbose and mannose. In dehydrated fruits, concentration of monosaccharides is higher than in fresh fruits resulting in the formation of sugar crystallites. In most of dried fruits, crystalline fructose, and glucose dominate and appear in proportion near to 1:1. Irradiation of dried fruits stimulates radiation chemical processes resulting in the formation of new chemical products and free radicals giving rise to multicomponent EPR signal which can be detected for a long period of time. For that reason,
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26

Bogart, Elizabeth A., Haley Wiskoski, Matina Chanthavongsay, Akul Gupta, and Joseph P. Hornak. "The Noninvasive Analysis of Paint Mixtures on Canvas Using an EPR MOUSE." Heritage 3, no. 1 (2020): 140–51. http://dx.doi.org/10.3390/heritage3010009.

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Many artists create the variety of colors in their paintings by mixing a small number of primary pigments. Therefore, analytical techniques for studying paintings must be capable of determining the components of mixtures. Electron paramagnetic resonance (EPR) spectroscopy is one of many techniques that can achieve this, however it is invasive. With the recent introduction of the EPR mobile universal surface explorer (MOUSE), EPR is no longer invasive. The EPR MOUSE and a least squares regression algorithm were used to noninvasively identify pairwise mixtures of seven different paramagnetic pig
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27

Schiemann, Olav, and Thomas F. Prisner. "Long-range distance determinations in biomacromolecules by EPR spectroscopy." Quarterly Reviews of Biophysics 40, no. 1 (2007): 1–53. http://dx.doi.org/10.1017/s003358350700460x.

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AbstractElectron paramagnetic resonance (EPR) spectroscopy provides a variety of tools to study structures and structural changes of large biomolecules or complexes thereof. In order to unravel secondary structure elements, domain arrangements or complex formation, continuous wave and pulsed EPR methods capable of measuring the magnetic dipole coupling between two unpaired electrons can be used to obtain long-range distance constraints on the nanometer scale. Such methods yield reliably and precisely distances of up to 80 Å, can be applied to biomolecules in aqueous buffer solutions or membran
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28

Tran, Duc-Nghia, Sebastien Li-Thiao-Te, and Yves-Michel Frapart. "Parameter Estimation for Quantitative EPR Spectroscopy." IEEE Transactions on Instrumentation and Measurement 70 (2021): 1–7. http://dx.doi.org/10.1109/tim.2021.3084289.

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29

Fábregas-Ibáñez, Luis, Maxx H. Tessmer, Gunnar Jeschke, and Stefan Stoll. "Dipolar pathways in dipolar EPR spectroscopy." Physical Chemistry Chemical Physics 24, no. 4 (2022): 2504–20. http://dx.doi.org/10.1039/d1cp03305k.

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30

Hruszowiec, Mariusz, Kacper Nowak, Bogusław Szlachetko, et al. "The Microwave Sources for EPR Spectroscopy." Journal of Telecommunications and Information Technology, no. 2 (June 30, 2017): 18–25. http://dx.doi.org/10.26636/jtit.2017.107616.

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Rapid development of many scientific and technical disciplines, especially in material science and material engineering increases a demand for quick, accurate and cheap techniques of materials investigations. The EPR spectroscopy meets these requirements and it is used in many fields of science including biology, chemistry and physics. For proper work, the EPR spectrometer needs a microwave source, which are reviewed in this paper. Vacuum tubes as well as semiconductor generators are presented such as magnetron, klystron, traveling wave tube, backward wave oscillator, orotron, gyrotron, Gunn a
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31

Ingold, K. U., and J. C. Walton. "Probing ring conformations with EPR spectroscopy." Accounts of Chemical Research 22, no. 1 (1989): 8–14. http://dx.doi.org/10.1021/ar00157a002.

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32

Kordas, G. "EPR spectroscopy on sol-gel glasses." Journal of Non-Crystalline Solids 147-148 (January 1992): 106–14. http://dx.doi.org/10.1016/s0022-3093(05)80602-7.

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33

Davydov, R., R. Kappl, J. Hüttermann, and J. A. Peterson. "EPR-spectroscopy of reduced oxyferrous-P450cam." FEBS Letters 295, no. 1-3 (1991): 113–15. http://dx.doi.org/10.1016/0014-5793(91)81398-r.

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34

Kuppusamy, Periannan. "EPR Spectroscopy in Biology and Medicine." Antioxidants & Redox Signaling 6, no. 3 (2004): 583–85. http://dx.doi.org/10.1089/152308604773934332.

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35

Vertii, A. A., V. D. Orlov, N. A. Popenko, et al. "EPR spectroscopy of stable CrV complexes." Journal of Applied Spectroscopy 60, no. 5-6 (1994): 368–72. http://dx.doi.org/10.1007/bf02606332.

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36

Barra, A. L., L. C. Brunel, and J. B. Robert. "EPR spectroscopy at very high field." Chemical Physics Letters 165, no. 1 (1990): 107–9. http://dx.doi.org/10.1016/0009-2614(90)87019-n.

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37

Van Doorslaer, Sabine, and Damien M. Murphy. "ChemInform Abstract: EPR Spectroscopy in Catalysis." ChemInform 44, no. 51 (2013): no. http://dx.doi.org/10.1002/chin.201351279.

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38

Bondarenko, P. V., Le Thi Bich Nguyet, S. E. Zhuravleva, and E. M. Trukhan. "EPR Spectroscopy in Environmental Lichen-Indication." Journal of Applied Spectroscopy 84, no. 4 (2017): 646–49. http://dx.doi.org/10.1007/s10812-017-0523-2.

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39

Noble, C. J., Y. C. Zhong, J. R. Pilbrow, and D. R. Hutton. "Echo-Detected Fourier-Transform EPR Spectroscopy." Journal of Magnetic Resonance, Series A 105, no. 3 (1993): 323–25. http://dx.doi.org/10.1006/jmra.1993.1290.

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40

Bourg, J., M. C. Krishna, J. B. Mitchell, et al. "Radiofrequency FT EPR Spectroscopy and Imaging." Journal of Magnetic Resonance, Series B 102, no. 1 (1993): 112–15. http://dx.doi.org/10.1006/jmrb.1993.1071.

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41

Hyde, J. S., M. Pasenkiewicz-Gierula, A. Jesmanowicz, and W. E. Antholine. "Pseudo field modulation in EPR spectroscopy." Applied Magnetic Resonance 1, no. 3 (1990): 483–96. http://dx.doi.org/10.1007/bf03166028.

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42

ZAKHAROV, N. S., S. A. SOZINOV, A. N. POPOVA, and Z. R. ISMAGILOV. "INTEGRATED INVESTIGATION OF THE STRUCTURE OF INDUSTRIAL GREEN COKE." Chemistry for Sustainable Development 31, no. 5 (2023): 490–96. http://dx.doi.org/10.15372/csd2023494.

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Integrated studies of green coke have been carried out by means of X-ray diffractometry, electron microscopy, electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR). It is determined by EPR spectroscopy that two types of radical structures are present in the samples: low-molecular aromatic radicals and conjugated polyaromatic structures in which the unpaired electron is delocalised. Analysis of line shapes in the EPR spectra reveals differences between the green coke samples under investigation. EPR is shown to be highly sensitive method allowing one to follow the changes o
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43

Klare, Johann P. "Site-directed spin labeling EPR spectroscopy in protein research." Biological Chemistry 394, no. 10 (2013): 1281–300. http://dx.doi.org/10.1515/hsz-2013-0155.

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Abstract Site-directed spin labeling (SDSL) in combination with electron paramagnetic resonance (EPR) spectroscopy has emerged as an efficient tool to elucidate the structure and the conformational dynamics of proteins under conditions close to the native state. This review article summarizes the basics as well as the recent progress in SDSL and EPR methods, especially for investigations on protein structure, protein function, and interaction of proteins with other proteins or nucleic acids. Labeling techniques as well as EPR methods are introduced and exemplified with applications to systems
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44

Kim, Yujeong, Jin Kim, Linh K. Nguyen, Yong-Min Lee, Wonwoo Nam, and Sun Hee Kim. "EPR spectroscopy elucidates the electronic structure of [FeV(O)(TAML)] complexes." Inorganic Chemistry Frontiers 8, no. 15 (2021): 3775–83. http://dx.doi.org/10.1039/d1qi00522g.

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The complete hyperfine tensor of <sup>17</sup>O of the Fe<sup>V</sup>-oxo moeity was probed by ENDOR spectroscopy. The EPR spectroscopic results reported here provide a conclusive experimental basis for elucidating the electronic structure of the Fe<sup>V</sup>-oxo complex.
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45

Sahu, Indra D., Alberto Perez, Samuel Haralu, Matthew Scheyer, and Gary A. Lorigan. "EPR Studies of KCNE3 in Proteoliposomes using Electron Paramagnetic Resonance (EPR) Spectroscopy." Biophysical Journal 120, no. 3 (2021): 292a—293a. http://dx.doi.org/10.1016/j.bpj.2020.11.1876.

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46

Najder-Kozdrowska, Lidia, Barbara Pilawa, Ewa Buszman, Dorota Wrzesniok, and Andrzej B. Więckowski. "Electron paramagnetic resonance (EPR) study of DOPA–melanin complexes with kanamycin and copper(II) ions." Spectroscopy 25, no. 3-4 (2011): 197–205. http://dx.doi.org/10.1155/2011/353059.

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This work comprises the study of DOPA–melanin complexes with kanamycin and copper(II) ions made by electron paramagnetic resonance EPR spectroscopy. The high concentration of paramagnetic centers in melanin makes the use of EPR spectroscopy possible. The unpaired electron localized on the oxygen atom in indol-5,6-quinone groups is the paramagnetic centers in this polymer. The aim of this work was the analysis of EPR parameters of recorded spectra. For researches were prepared melanin complexes which differed in complexing order of drug and Cu(II) ions, and in concentration of CuCl2solutions us
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47

Akbalık, Fırat. "Dosimetric Investigation of Acetaminophen Drug Raw Materials by Electron Paramgangnetic Resonance Spectroscopy." Journal of Anatolian Physics and Astronomy 3, no. 2 (2024): 75–82. https://doi.org/10.5281/zenodo.14344267.

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In this study, powdered crystals of paracetamol, a drug active ingredient known for its use in alleviating postoperative pain and as an adjuvant in chemotherapy for cancer patients, were exposed to gamma radiation. The paramagnetic defects induced by the radiation were thoroughly investigated using Electron Paramagnetic Resonance (EPR) spectroscopy. The suitability of the drug sample for use as a dosimetric material, radical extinction data, saturation information occurring at microwave power values and parameters related to dose-response data were investigated at room temperature. No EPR sign
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48

Braun, Theresa, Malte Drescher, and Daniel Summerer. "Expanding the Genetic Code for Site-Directed Spin-Labeling." International Journal of Molecular Sciences 20, no. 2 (2019): 373. http://dx.doi.org/10.3390/ijms20020373.

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Site-directed spin labeling (SDSL) in combination with electron paramagnetic resonance (EPR) spectroscopy enables studies of the structure, dynamics, and interactions of proteins in the noncrystalline state. The scope and analytical value of SDSL–EPR experiments crucially depends on the employed labeling strategy, with key aspects being labeling chemoselectivity and biocompatibility, as well as stability and spectroscopic properties of the resulting label. The use of genetically encoded noncanonical amino acids (ncAA) is an emerging strategy for SDSL that holds great promise for providing exce
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49

Chodurek, Ewa, and Barbara Pilawa. "Application of EPR spectroscopy in qualitative and quantitative examinations of paramagnetic centers in melanin." Annales Academiae Medicae Silesiensis 76 (April 27, 2022): 21–30. http://dx.doi.org/10.18794/aams/144871.

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Spektroskopia elektronowego rezonansu paramagnetycznego (&lt;i&gt;electron paramagnetic resonance&lt;/i&gt; – EPR) jest metodą przydatną w biologii i medycynie do badania substancji paramagnetycznych, ich roli w procesach chorobowych oraz terapii. Celem pracy jest przedstawienie podstaw fizycznych spektroskopii EPR oraz dokonanie przeglądu zastosowań metody EPR do badań jakościowych i ilościowych centrów paramagnetycznych melanin. Omówiono możliwości spektroskopii EPR i procedury eksperymentalne stosowane do wyznaczenia rodzajów centrów paramagnetycznych występujących w melaninach syntetycznyc
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50

Debska, Bozena, Ewa Spychaj-Fabisiak, Wiesław Szulc, Renata Gaj, and Magdalena Banach-Szott. "EPR Spectroscopy as a Tool to Characterize the Maturity Degree of Humic Acids." Materials 14, no. 12 (2021): 3410. http://dx.doi.org/10.3390/ma14123410.

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The major indicator of soil fertility and productivity are humic acids (HAs) arising from decomposition of organic matter. The structure and properties of HAs depend, among others climate factors, on soil and anthropogenic factors, i.e., methods of soil management. The purpose of the research undertaken in this paper is to study humic acids resulting from the decomposition of crop residues of wheat (Triticum aestivum L.) and plant material of thuja (Thuja plicata D.Don.ex. Lamb) using electron paramagnetic resonance (EPR) spectroscopy. In the present paper, we report EPR studies carried out on
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