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Alsaif NA, Khattari Z, Zakaly HM, Rammah Y, Ene A, Al-Buriahi M. Mechanic-elastic properties and radiation attenuation efficiency of TeO 2/WO 3/K 2O composite glass systems for nuclear and medical application. Heliyon 2023; 9:e18912. [PMID: 37600407 PMCID: PMC10432205 DOI: 10.1016/j.heliyon.2023.e18912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/02/2023] [Accepted: 08/02/2023] [Indexed: 08/22/2023] Open
Abstract
WO3 effects on neutron and ionizing radiation defending factors of ternary tellurite-based glass blocks with molecular formula 80TeO2 -(20-x)WO3 - xK2O; x = 0-20 mol% (denoted as TKW-glass) has been reported via Phy-X theoretical calculations and Geant4 simulation code. Correlations between shielding factors and kinetics properties of the investigated glasses at different photon energy have been examined. The highest values of mass (MAC) attenuation coefficient were noted at 15 keV of the examined TKW-glass materials with the values of 38.408, 44.388, 49.855, 54.872, 59.492 cm2/g for TKW-0, TKW-5, TKW-10, TKW-15, and TKW-20, respectively. Generally, these values of the TKW-glasses obey the sequence: (TKW-0)MAC< (TKW-5)MAC < (TKW-10)MAC < (TKW-15)MAC < (TKW-20)MAC. The highest mean free path (MFP) values of TKW-glasses were registered at 15 MeV with the values of 6.101, 5.591, 5.097, 4.647, and 4.302 cm for TKW-0, TKW-5, TKW-10, TKW-15, and TKW-20, respectively. The two parameters half value layer (HVL) and MFP follow the pattern: (TKW-0)HVL, MFP > (TKW-5)HVL,MFP > (TKW-10)HVL,MFP > (TKW-15)HVL,MFP > (TKW-20)HVL,MFP. The maximum values of effective atomic number (EAN) took place at gamma energy of 15 keV corresponding to 44.35, 48.86, 52.63, 55.83, and 58.58 for TKW-0, TKW-5, TKW-10, TKW-15, and TKW-20, respectively. The trend of the buildup factors was similar for all of the glass specimens. The fast neutron removal cross-section (Σ R ) enhanced as WO3 content increased in the specimens. Thus, the peaked value of Σ R is 0.1059 cm-1 was noted in the TKW-20 sample. Mechanical properties, neutron and γ-rays protection parameters were observed to improve with enhanced WO3 mol% in the TKW-glasses. The current results bear their utilization for neutron and gamma protection purposes.
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Affiliation(s)
- Norah A.M. Alsaif
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Z.Y. Khattari
- Department of Physics, Faculty of Science, The Hashemite University, P. O. Box 330127, Zarqa, 13133, Jordan
| | - Hesham M.H. Zakaly
- Institute of Physics and Technology, Ural Federal University, 620002, Ekaterinburg, Russia
- Istinye University, Faculty of Engineering and Natural Sciences, Computer Engineering Department, Istanbul 34396, Turkey
- Physics Department, Faculty of Science, Al-Azhar University, Assiut, 71524, Egypt
| | - Y.S. Rammah
- Physics Department, Faculty of Science, Menoufia University, 32511, Shebin El Koom, Egypt
| | - Antoaneta Ene
- INPOLDE Research Center, Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008, Galati, Romania
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Khattari Z, Alsaif NA, Rammah Y, Abou Hussein E, Shams M, Elsad R. Fabrication, physical, mechanical, and radiation protection properties of bismo-borate glasses containing La3+ + Eu3+ as additive ions. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Khattari Z, Al-Buriahi M. Monte Carlo simulations and Phy-X/PSD study of radiation shielding effectiveness and elastic properties of barium zinc aluminoborosilicate glasses. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110091] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Akman F, Khattari Z, Kaçal M, Sayyed M, Afaneh F. The radiation shielding features for some silicide, boride and oxide types ceramics. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.03.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Khattari Z, Langer U, Aliaskarisohi S, Ray A, Fischer T. Effects of soluble surfactants on the Langmuir monolayers compressibility: A comparative study using interfacial isotherms and fluorescence microscopy. Materials Science and Engineering: C 2011. [DOI: 10.1016/j.msec.2011.07.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Murakami D, Langer U, Khattari Z, Fischer TM. Fluorinated Langmuir Monolayers Are More Viscous than Non-Fluorinated Monolayers. J Phys Chem B 2010; 114:5376-9. [DOI: 10.1021/jp100629p] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- D. Murakami
- Institut für Experimentalphysik V, Universität Bayreuth, 95440 Bayreuth, Germany, Department of Chemistry, Kyushu University, Fukuoka, Japan, and Department of Physics, Hashemite University, Zarqa, Jordan
| | - U. Langer
- Institut für Experimentalphysik V, Universität Bayreuth, 95440 Bayreuth, Germany, Department of Chemistry, Kyushu University, Fukuoka, Japan, and Department of Physics, Hashemite University, Zarqa, Jordan
| | - Z. Khattari
- Institut für Experimentalphysik V, Universität Bayreuth, 95440 Bayreuth, Germany, Department of Chemistry, Kyushu University, Fukuoka, Japan, and Department of Physics, Hashemite University, Zarqa, Jordan
| | - Th. M. Fischer
- Institut für Experimentalphysik V, Universität Bayreuth, 95440 Bayreuth, Germany, Department of Chemistry, Kyushu University, Fukuoka, Japan, and Department of Physics, Hashemite University, Zarqa, Jordan
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Khattari Z, Arbely E, Arkin IT, Salditt T. Viral ion channel proteins in model membranes: a comparative study by X-ray reflectivity. Eur Biophys J 2006; 36:45-55. [PMID: 17019591 PMCID: PMC7080166 DOI: 10.1007/s00249-006-0099-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2006] [Revised: 08/09/2006] [Accepted: 08/25/2006] [Indexed: 11/24/2022]
Abstract
We have investigated the effect of the transmembrane domain of three viral ion channel proteins on the lipid bilayer structure by X-ray reflectivity and scattering from oriented planar bilayers. The proteins show a similar effect on the lipid bilayer structural parameters: an increase in the lipid bilayer hydrophobic core, a decrease in the amplitude of the vertical density profile and a systematic change in the ordering of the acyl chains as a function of protein-to-lipid ratio. These results are discussed in a comparative view.
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Affiliation(s)
- Z. Khattari
- Institut für Röntgenphysik, Universität Göttingen Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - E. Arbely
- The Alexander Silberman Institute of Life Sciences, Department of Biological Chemistry, The Hebrew University of Jerusalem, Givat-Ram Jerusalem, 91904 Israel
| | - I. T. Arkin
- The Alexander Silberman Institute of Life Sciences, Department of Biological Chemistry, The Hebrew University of Jerusalem, Givat-Ram Jerusalem, 91904 Israel
| | - T. Salditt
- Institut für Röntgenphysik, Universität Göttingen Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
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Khattari Z, Brotons G, Akkawi M, Arbely E, Arkin IT, Salditt T. SARS coronavirus E protein in phospholipid bilayers: an x-ray study. Biophys J 2006; 90:2038-50. [PMID: 16361349 PMCID: PMC1386782 DOI: 10.1529/biophysj.105.072892] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2005] [Accepted: 11/21/2005] [Indexed: 11/18/2022] Open
Abstract
We investigated the structure of the hydrophobic domain of the severe acute respiratory syndrome E protein in model lipid membranes by x-ray reflectivity and x-ray scattering. In particular, we used x-ray reflectivity to study the location of an iodine-labeled residue within the lipid bilayer. The label imposes spatial constraints on the protein topology. Experimental data taken as a function of protein/lipid ratio P/L and different swelling states support the hairpin conformation of severe acute respiratory syndrome E protein reported previously. Changes in the bilayer thickness and acyl-chain ordering are presented as a function of P/L, and discussed in view of different structural models.
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Affiliation(s)
- Z Khattari
- Institute for X-ray Physics, University of Göttingen, Göttingen, Germany
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Abstract
We investigate the nonequilibrium behavior of two-dimensional gas bubbles in Langmuir monolayers. A cavitation bubble is induced in liquid expanded phase by locally heating a Langmuir monolayer with an IR-laser. At low IR-laser power the cavitation bubble is immersed in quiescent liquid expanded monolayer. At higher IR-laser power thermo capillary flow around the laser-induced cavitation bubble sets in. The thermo capillary flow is caused by a temperature dependence of the gas/liquid line tension. The slope of the line tension with temperature is determined by measuring the thermo capillary flow velocity. Thermodynamically stable satellite bubbles are generated by increasing the surface area of the monolayer. Those satellite bubbles collide with the cavitation bubble. Upon collision the satellite bubbles either coalesce with the cavitation bubble or slide past the cavitation bubble. Moreover we show that the satellite bubbles can also be produced by the emission from the laser-induced cavitation bubbles.
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Affiliation(s)
- Rm Muruganathan
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida, USA
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Khattari Z, Brotons G, Arbely E, Arkin IT, Metzger TH, Salditt T. SARS E protein in phospholipid bilayers: an anomalous X-ray reflectivity study. Physica B Condens Matter 2005; 357:34-38. [PMID: 32288217 PMCID: PMC7127356 DOI: 10.1016/j.physb.2004.11.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report on an anomalous X-ray reflectivity study to locate a labelled residue of a membrane protein with respect to the lipid bilayer. From such experiments, important constraints on the protein or peptide conformation can be derived. Specifically, our aim is to localize an iodine-labelled phenylalanine in the SARS E protein, incorporated in DMPC phospholipid bilayers, which are deposited in the form of thick multilamellar stacks on silicon surfaces. Here, we discuss the experimental aspects and the difficulties associated with the Fourier synthesis analysis that gives the electron density profile of the membranes.
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Affiliation(s)
- Z Khattari
- Institut für Röntgenphysik, Universität Göttingen, Geiststrasse 11, 37073 Göttingen, Germany
| | - G Brotons
- Institut für Röntgenphysik, Universität Göttingen, Geiststrasse 11, 37073 Göttingen, Germany
| | - E Arbely
- The Alexander Silberman Institute of Life Sciences, Department of Biological Chemistry, The Hebrew University of Jerusalem, Givat-Ram, Jerusalem, 91904, Israel
| | - I T Arkin
- The Alexander Silberman Institute of Life Sciences, Department of Biological Chemistry, The Hebrew University of Jerusalem, Givat-Ram, Jerusalem, 91904, Israel
| | - T H Metzger
- European Synchrotron Radiation Facility, Boite Postale 220, 38043 Grenoble, France
| | - T Salditt
- Institut für Röntgenphysik, Universität Göttingen, Geiststrasse 11, 37073 Göttingen, Germany
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Khattari Z, Ruschel Y, Wen HZ, Fischer A, Fischer TM. Compactification of a Myelin Mimetic Langmuir Monolayer upon Adsorption and Unfolding of Myelin Basic Protein. J Phys Chem B 2005; 109:3402-7. [PMID: 16851371 DOI: 10.1021/jp045493z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The surface shear viscosity of a myelin mimetic Langmuir monolayer is investigated upon adsorption of myelin basic protein (MBP). We measure an increase of the surface shear viscosity at picomolar concentrations of the protein, suggesting that the globular conformation of MBP changes upon adsorption at the monolayer. The conformational change enables hydrodynamic interactions of the proteins, with a typical separation of hundreds of nanometers. This unfolding is essential for the compactification of the myelin sheath, serving an enhanced saltatory signal transduction in vertebrates. The viscometry used extends the sensitivity of standard surface viscometers toward lower viscosities.
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Affiliation(s)
- Z Khattari
- Institut für Röntgenphysik, Universität Göttingen, 37073 Göttingen, Germany
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Affiliation(s)
- Z. Khattari
- Department of Chemistry and Biochemsitry, The Florida State University, Tallahassee, Florida 32306-4390
| | - Th. M. Fischer
- Department of Chemistry and Biochemsitry, The Florida State University, Tallahassee, Florida 32306-4390
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Khattari Z, Hatta E, Heinig P, Steffen P, Fischer TM, Bruinsma R. Cavitation of Langmuir monolayers. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 65:041603. [PMID: 12005833 DOI: 10.1103/physreve.65.041603] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2001] [Indexed: 05/23/2023]
Abstract
Cavitation in liquid expanded and liquid condensed Langmuir monolayers induced by laser heating or microbubble coalescence is studied experimentally using fluorescence and Brewster angle microscopy. The kinetics of hole closure of two-dimensional (2D) gaseous cavitation bubbles exhibits a decelerated dynamics for cavities surrounded by a liquid expanded phase and an accelerated dynamics for cavities in a liquid condensed phase. Most of the cavities in liquid condensed phases possess a nonconvex shape and do not close. The results are compared with theoretical predictions derived for 2D cavitation of liquid monolayers of different surface shear viscosities, and for solid monolayers with diffusive flux of vacancies and interstitials. While part of the theory is in qualitative agreement with the experiment, the experimentally observed hole persistence within the liquid condensed phases and the hole closure within liquid expanded phases remains to be explained. The technique of microbubble coalescence might be particularly useful for the study of the rheological properties of hexatic phases.
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Affiliation(s)
- Z Khattari
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Golm, Germany
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Affiliation(s)
- Z. Khattari
- Max Planck Institut of Colloids and Interfaces, Am Mühlenberg 1, 14476 Golm, Germany
| | - Th. M. Fischer
- Max Planck Institut of Colloids and Interfaces, Am Mühlenberg 1, 14476 Golm, Germany
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Khattari Z, Hatta E, Kurth DG, Fischer TM. Cavitation in two-dimensional metallo-supramolecular coordination polyelectrolyte amphiphile complexes. J Chem Phys 2001. [DOI: 10.1063/1.1416508] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Steffen P, Heinig P, Wurlitzer S, Khattari Z, Fischer TM. The translational and rotational drag on Langmuir monolayer domains. J Chem Phys 2001. [DOI: 10.1063/1.1378017] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wurlitzer S, Steffen P, Wurlitzer M, Khattari Z, Fischer TM. Line tension in Langmuir monolayers probed by point forces. J Chem Phys 2000. [DOI: 10.1063/1.1287907] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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