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Matsushita S, Suzuki R, Abe M, Kojima K, Tachibana M. Diffusion Coefficient of Intracrystalline Water in Intrinsic Hen Egg-White Lysozyme Crystals Determined by Confocal Raman Spectroscopy. J Phys Chem B 2022; 126:9000-9007. [PMID: 36318974 DOI: 10.1021/acs.jpcb.2c06329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Protein crystals composed of protein molecules are expected as a novel porous material. They have high porosity, and the knowledge of the diffusion of intracrystalline water is important. In this study, the diffusion coefficient of intracrystalline water in intrinsic hen egg-white lysozyme (HEWL) crystals was determined by a method that combines confocal Raman spectroscopy and air convection with controlled relative humidity. Similar to common porous materials, the drying process of the protein crystals includes three periods: constant-rate drying, falling-rate drying, and equilibrium state. During the falling-rate drying period, the drying rate depends on the diffusion of intracrystalline water in the protein crystal. The gradient of the water content was measured using confocal Raman spectroscopy. The diffusion coefficient of the intrinsic HEWL crystals was determined as 3.1 × 10-7 cm2/s with a water content of 36.3 vol %. The estimated diffusion coefficients of the intrinsic HEWL crystals without cross-linking were in close agreement with those of the cross-linked protein crystals. This study is timely as the knowledge of the intrinsic diffusion coefficient is useful not only for understanding the mechanism of hydration of proteins but also in practical applications such as porous materials, drug binding, and cryoprotectant soaks.
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Affiliation(s)
- Saori Matsushita
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama236-0027, Japan
| | - Ryo Suzuki
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama236-0027, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama332-0012, Japan
| | - Marina Abe
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama236-0027, Japan
| | - Kenichi Kojima
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama236-0027, Japan
| | - Masaru Tachibana
- Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama236-0027, Japan
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Chaudhary K, Yadav N, Venkatesu P, Masram DT. Evaluation of Utilizing Functionalized Graphene Oxide Nanoribbons as Compatible Biomaterial for Lysozyme. ACS APPLIED BIO MATERIALS 2021; 4:6112-6124. [PMID: 35006873 DOI: 10.1021/acsabm.1c00450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Graphene oxide nanoribbons with superior physicochemical properties acquired from graphene and carbon nanotubes have been used in various applications including biomedical applications. For biomedical applications, it is of utmost importance to understand how these graphene oxide nanoribbons interact with proteins and the influence they have on protein conformation and function. In this regard, an attempt has been made to evaluate the utility of graphene oxide nanoribbons as a compatible biomaterial for lysozyme (Lys) protein. In this study, graphene oxide nanoribbons (GONRs) synthesized from multiwalled carbon nanotubes (MWCNTs) were first functionalized with (3-aminopropyl)triethoxysilane (APTES) and further modified with vanillin (Val) to obtain Val-APTES-GONRs. On characterization, it was found that the Val-APTES-GONRs material had a ribbonlike morphology with abundant functionalities for interaction with protein. On evaluation of Val-APTES-GONRs as a compatible biomaterial for Lys, studies revealed that a lower concentration of the as-synthesized material has less influence on the conformation and the structure of Lys with better activity, whereas higher concentrations of the as-synthesized material had a greater influence on conformation and the structure of Lys with decreased activity. Overall, the thermal stability of Lys was maintained after introducing the Val-APTES-GONRs material. In addition, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) and Raman spectroscopies were performed for Lys composites with Val-APTES-GONRs for further understanding biomolecular interactions. This study is beneficial for designing advanced graphene-based materials for numerous bioinspired applications and better biomaterials for biotechnological use.
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Affiliation(s)
- Karan Chaudhary
- Department of Chemistry, University of Delhi, Delhi 110 007, India
| | - Niketa Yadav
- Department of Chemistry, University of Delhi, Delhi 110 007, India
| | | | - Dhanraj T Masram
- Department of Chemistry, University of Delhi, Delhi 110 007, India
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Falamas A, Faur CI, Ciupe S, Chirila M, Rotaru H, Hedesiu M, Cinta Pinzaru S. Rapid and noninvasive diagnosis of oral and oropharyngeal cancer based on micro-Raman and FT-IR spectra of saliva. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119477. [PMID: 33545509 DOI: 10.1016/j.saa.2021.119477] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 01/04/2021] [Accepted: 01/09/2021] [Indexed: 06/12/2023]
Abstract
Fast, sensitive, and noninvasive techniques are needed for better health care management, particularly when traditional biopsies could be replaced with appropriate analyses of body fluids, such as saliva. Here is presented a proof-of-concept study, which aims to test a recently developed saliva samples preparation method, for oral and oropharyngeal cancer diagnosis, using micro-Raman and Fourier transform infrared (FT-IR) spectroscopic techniques. The detected biomarker bands and the cancer classification rates are compared and discussed. Saliva samples were collected from healthy donors and pathologically confirmed oral and oropharyngeal cancer patients. Principal components analysis (PCA) and principal components analysis-linear discriminant analysis (PCA-LDA) chemometric methods were applied to build discrimination models for the test and control groups. Based on the differences between salivary spectra of healthy and cancer patients, several biomarker bands were identified. Noteworthy, a significant vibrational biomarker band at 2064 cm-1, assigned to thiocyanate, was observed in both the FT-IR and Raman data-set. Other cancer characteristic Raman bands were 754 cm-1 (tryptophan), 530 and 927 cm-1 (lysozyme), 1001 cm-1 (phenylalanine), while the FT-IR biomarker band was located at 1075 cm-1 (phosphodiester bonds stretching in DNA, RNA). The oral and oropharyngeal cancer was classified with an accuracy of 90% based on the micro-Raman data and 82% based on the FT-IR data set, respectively. The study showed that oral and oropharyngeal cancer can be differentiated from control saliva samples based on their respective micro-Raman and FT-IR spectral signatures, due to the biomolecular modifications induced by the disease.
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Affiliation(s)
- A Falamas
- Molecular and Biomolecular Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania.
| | - C I Faur
- Department of Maxillofacial Surgery and Radiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - S Ciupe
- Molecular and Biomolecular Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - M Chirila
- Department of ENT, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - H Rotaru
- Department of Maxillofacial Surgery and Radiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - M Hedesiu
- Department of Maxillofacial Surgery and Radiology, "Iuliu Hatieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - S Cinta Pinzaru
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Romania.
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Chaudhary K, Kumar K, Venkatesu P, Masram DT. In-depth understanding of a nano-bio interface between lysozyme and Au NP-immobilized N-doped reduced graphene oxide 2-D scaffolds. NANOSCALE ADVANCES 2020; 2:2146-2159. [PMID: 36132509 PMCID: PMC9418970 DOI: 10.1039/d0na00155d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/08/2020] [Indexed: 05/21/2023]
Abstract
In the present work, nitrogen-doped reduced graphene oxide (NrGO) was synthesized via a hydrothermal treatment of graphene oxide (GO) in the presence of urea. Gold nanoparticles (Au(0) NPs) were immobilized over the surface of NrGO (Au(0)-NrGO). Characterization of the Au(0)-NrGO nanocomposite via FT-IR spectroscopy, Raman spectroscopy, elemental mapping and XPS revealed the doping of N atoms during the reduction of GO. XRD and XPS studies confirmed the presence of Au(0) NPs and EDS analysis showed a 4.51 wt% loading of Au NPs in the Au(0)-NrGO nanocomposite. The morphology of Au(0)-NrGO was explored by SEM and TEM, which showed the presence of spherical Au metal NPs uniformly immobilized on the surface of NrGO. Further, studies on lysozyme (Lys) in the presence of Au(0)-NrGO by UV-visible, fluorescence, and circular dichroism spectroscopy revealed a conformational change in Lys and electrostatic interaction between Lys and Au(0)-NrGO. The DLS result showed an enhancement in the size of the Au(0)-NrGO and Lys conjugates. The Au(0)-NrGO-induced conformational changes in the structure of Lys resulted in a significant decrease in its activity at a certain concentration of Au(0)-NrGO. Moreover, the results showed that Lys favorably binds with the surface of Au(0)-NrGO, resulting in the formation of 2-D scaffolds possibly due to electrostatic and hydrophobic interactions, H-bonding, and interactions between the AuNPs and sulfur-containing amino acid residues of Lys. SEM exhibited the formation of conjugates in the form of 2-D scaffolds due to the biomolecular interactions between Lys and Au(0)-NrGO. The TEM studies revealed that Lys agglomerated around the Au(0) NPs immobilized on the surface of NrGO, which suggests the formation of a protein corona (PC) around the AuNPs. Furthermore, the favorable Au(0) NP-sulphur (PC) interaction was confirmed by the disappearance of the S-S stretching band in the Raman spectra. Overall, the results obtained provide insight into the nano-bio interface and formation of Au(0) NP-PC, which can be used for bioinspired applications, such as biosensing and imaging and the development of advanced functional Au NPs.
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Affiliation(s)
- Karan Chaudhary
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-2766 6605 +91-11-27666646-142
| | - Krishan Kumar
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-2766 6605 +91-11-27666646-142
| | - Pannuru Venkatesu
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-2766 6605 +91-11-27666646-142
| | - Dhanraj T Masram
- Department of Chemistry, University of Delhi Delhi 110 007 India +91-11-2766 6605 +91-11-27666646-142
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Falamas A, Faur CI, Baciut M, Rotaru H, Chirila M, Cinta Pinzaru S, Hedesiu M. Raman Spectroscopic Characterization of Saliva for the Discrimination of Oral Squamous Cell Carcinoma. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1719129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- A. Falamas
- Molecular and Biomolecular Physics, National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania
| | - C. I. Faur
- Department of Oral Radiology, Faculty of Dental Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - M. Baciut
- Department of Oral and Maxillofacial Surgery, “Iuliu-Hateganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - H. Rotaru
- Department of Oral and Maxillofacial Surgery, “Iuliu-Hateganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - M. Chirila
- Department of ENT Surgery, “Iuliu-Hateganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - S. Cinta Pinzaru
- Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, Cluj-Napoca, Romania
| | - M. Hedesiu
- Department of Oral Radiology, Faculty of Dental Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Abstract
This is a review of relevant Raman spectroscopy (RS) techniques and their use in structural biology, biophysics, cells, and tissues imaging towards development of various medical diagnostic tools, drug design, and other medical applications. Classical and contemporary structural studies of different water-soluble and membrane proteins, DNA, RNA, and their interactions and behavior in different systems were analyzed in terms of applicability of RS techniques and their complementarity to other corresponding methods. We show that RS is a powerful method that links the fundamental structural biology and its medical applications in cancer, cardiovascular, neurodegenerative, atherosclerotic, and other diseases. In particular, the key roles of RS in modern technologies of structure-based drug design are the detection and imaging of membrane protein microcrystals with the help of coherent anti-Stokes Raman scattering (CARS), which would help to further the development of protein structural crystallography and would result in a number of novel high-resolution structures of membrane proteins—drug targets; and, structural studies of photoactive membrane proteins (rhodopsins, photoreceptors, etc.) for the development of new optogenetic tools. Physical background and biomedical applications of spontaneous, stimulated, resonant, and surface- and tip-enhanced RS are also discussed. All of these techniques have been extensively developed during recent several decades. A number of interesting applications of CARS, resonant, and surface-enhanced Raman spectroscopy methods are also discussed.
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Lo Faro MJ, D’Andrea C, Leonardi AA, Morganti D, Irrera A, Fazio B. Fractal Silver Dendrites as 3D SERS Platform for Highly Sensitive Detection of Biomolecules in Hydration Conditions. NANOMATERIALS 2019; 9:nano9111630. [PMID: 31744124 PMCID: PMC6915472 DOI: 10.3390/nano9111630] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 11/14/2019] [Indexed: 02/08/2023]
Abstract
In this paper, we report on the realization of a highly sensitive and low cost 3D surface-enhanced Raman scattering (SERS) platform. The structural features of the Ag dendrite network that characterize the SERS material were exploited, attesting a remarked self-similarity and scale invariance over a broad range of length scales that are typical of fractal systems. Additional structural and optical investigations confirmed the purity of the metal network, which was characterized by low oxygen contamination and by broad optical resonances introduced by the fractal behavior. The SERS performances of the 3D fractal Ag dendrites were tested for the detection of lysozyme as probe molecule, attesting an enhancement factor of ~2.4 × 106. Experimental results assessed the dendrite material as a suitable SERS detection platform for biomolecules investigations in hydration conditions.
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Affiliation(s)
- Maria José Lo Faro
- Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy; (M.J.L.F.); (A.A.L.); (D.M.)
- CNR - IPCF, Istituto per I Processi Chimico-Fisici, viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- CNR - MATIS IMM, Istituto per la Microelettronica e Microsistemi, via S. Sofia 64, 95123 Catania, Italy
| | - Cristiano D’Andrea
- CNR - IFAC, Istituto di Fisica Applicata “Nello Carrara”, Via Madonna del Piano, 10, I-50019 Sesto Fiorentino, Italy;
| | - Antonio Alessio Leonardi
- Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy; (M.J.L.F.); (A.A.L.); (D.M.)
- CNR - IPCF, Istituto per I Processi Chimico-Fisici, viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- CNR - MATIS IMM, Istituto per la Microelettronica e Microsistemi, via S. Sofia 64, 95123 Catania, Italy
| | - Dario Morganti
- Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy; (M.J.L.F.); (A.A.L.); (D.M.)
- CNR - IPCF, Istituto per I Processi Chimico-Fisici, viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
| | - Alessia Irrera
- CNR - IPCF, Istituto per I Processi Chimico-Fisici, viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- Correspondence: (A.I.); (B.F.); Tel.: +39-090-3976-2266 (A.I.); +39-090-3976-2246 (B.F.)
| | - Barbara Fazio
- CNR - IPCF, Istituto per I Processi Chimico-Fisici, viale F. Stagno d’Alcontres 37, 98158 Messina, Italy
- Correspondence: (A.I.); (B.F.); Tel.: +39-090-3976-2266 (A.I.); +39-090-3976-2246 (B.F.)
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Starciuc T, Tabary N, Paccou L, Duponchel L, Guinet Y, Martel B, Hédoux A. A detailed analysis of the influence of β-cyclodextrin derivates on the thermal denaturation of lysozyme. Int J Pharm 2019; 554:1-13. [DOI: 10.1016/j.ijpharm.2018.10.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/24/2018] [Accepted: 10/26/2018] [Indexed: 12/07/2022]
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10
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Balakhnina IA, Brandt NN, Chikishev AY, Mankova AA, Shpachenko IG. Low-frequency vibrational spectroscopy of proteins with different secondary structures. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:91509. [PMID: 28342298 DOI: 10.1117/1.jbo.22.9.091509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 03/14/2017] [Indexed: 06/06/2023]
Abstract
Fourier transform infrared (FTIR) and Raman spectra of proteins with significantly different structures are measured in a spectral interval of 50 to 500 ?? cm ? 1 and noticeable spectral differences are revealed. Intensities of several spectral bands correlate with contents of secondary structure elements. FTIR spectra of superhelical proteins exhibit developed spectral features that are absent in the spectra of globular proteins. Significant differences of the Raman spectra of proteins that are not directly related to the difference of the secondary structures can be due to differences of tertiary and/or quaternary structure of protein molecules.
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Affiliation(s)
- Irina A Balakhnina
- Lomonosov Moscow State University, Physics Department, Leninskie gory, Moscow, Russia
| | - Nikolay N Brandt
- Lomonosov Moscow State University, Physics Department, Leninskie gory, Moscow, Russia
| | - Andrey Yu Chikishev
- Lomonosov Moscow State University, International Laser Center, Leninskie gory, Moscow, Russia
| | - Anna A Mankova
- Lomonosov Moscow State University, Physics Department, Leninskie gory, Moscow, Russia
| | - Irina G Shpachenko
- Lomonosov Moscow State University, Physics Department, Leninskie gory, Moscow, Russia
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Shilpa T, George SD, Bankapur A, Chidangil S, Dharmadhikari AK, Mathur D, Madan Kumar S, Byrappa K, Abdul Salam AA. Effect of nucleants in photothermally assisted crystallization. Photochem Photobiol Sci 2017; 16:870-882. [PMID: 28379273 DOI: 10.1039/c6pp00430j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Laser-induced crystallization is emerging as a promising technique to crystallize biomolecules like amino acids and proteins. The use of external materials as nucleants and novel seeding methods open new paths for protein crystallization. We report here the results of experiments that explore the effect of nucleants on laser-based crystallization of microlitre droplets of small molecules, amino acids, and proteins. The role of parameters like solute concentration, droplet volume, type and size of the nucleant, and laser power, are systematically investigated. In addition to crystallization of standard molecules like NaCl, KCl, and glycine, we demonstrate the crystallization of negatively (l-histidine), and positively (l-aspartic acid) charged amino acids and lysozyme protein. Single crystal X-ray diffraction and Raman spectroscopy studies unequivocally indicate that the nucleants do not alter the molecular structure of glycine, hydrogen bonding patterns, and packing. Localized vaporization of the solvent near the nucleant due to photothermal heating has enabled us to achieve rapid crystallization - within 3 s - at laser intensities of 0.1 MW cm-2, significantly lower than those reported earlier, with both saturated and unsaturated solutions. The outcome of the current experiments may be of utility in tackling various crystallization problems during the formation of crystals large enough to perform X-ray crystallography.
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Affiliation(s)
- T Shilpa
- Department of Atomic and Molecular Physics, Manipal University, Manipal 576 104, India.
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Frontzek (neé Svanidze) AV, Embs JP, Paccou L, Guinet Y, Hédoux A. Low-Frequency Dynamics of BSA Complementarily Studied by Raman and Inelastic Neutron Spectroscopy. J Phys Chem B 2017; 121:5125-5132. [DOI: 10.1021/acs.jpcb.7b01395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anna V. Frontzek (neé Svanidze)
- Jülich
Center for Neutron Science (JCNS), Forschungszentrum Jülich GmbH, Outstation
at MLZ, Lichtenbergstraße 1, 85747 Garching, Germany
- A.F. Ioffe Physical Technical Institute, ul. Politekhnicheskaya 26, 194021 St. Petersburg, Russian Federation
| | - Jan Peter Embs
- Laboratory
for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
| | | | - Yannick Guinet
- Université Lille Nord de France, F-59000 Lille, France
- USTL UMET UMR CNRS 8207, F-59655 Villeneuve d’Ascq, France
| | - Alain Hédoux
- Université Lille Nord de France, F-59000 Lille, France
- USTL UMET UMR CNRS 8207, F-59655 Villeneuve d’Ascq, France
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