Publications

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Babjaková, E., L. Dastychová, B. Hanulíková, I. Kuřitka, M. Nečas, H. Vašková, and R. Vícha, "Synthesis, molecular structure and vibrational spectra of 1,3-bis(1-adamantyl)-2-phenylpropan-1,3-diones", Journal of Molecular Structure, vol. 1085, pp. 207 - 214, 2015. AbstractWebsite

Abstract The interest in the oxo-enol tautomerism of 1,3-dioxo compounds is justified by their usefulness in many synthetic fields. A series of new 1,3-bis(1-adamantyl)propan-1,3-diones with a variably substituted phenyl ring at the \{C2\} position was prepared either by the reaction of an appropriate Grignard reagent with adamatane-1-carbonyl chloride or by \{SEAr\} on the unsubstituted 1,3-bis(1-adamantyl)-2-phenylpropan-1,3-dione. In addition to the single crystal X-ray diffraction analysis of three of the prepared compounds, the experimental 1H and 13C NMR, İR\} and Raman spectroscopic data were assigned and compared to those obtained by \{DFT\} computations. In the solid state, the syn-dioxo forms were exclusively observed, which are shown to also predominate in \{CHCl3\} solutions. The analysis of the Hirshfeld surface revealed that H⋯H and O⋯H contacts dominate the intermolecular interactions in the solid state, whereas π⋯π stacking plays a marginal role.

Badr, Y., and M. A. Mahmoud, "Excimer laser photofragmentation of metallic nanoparticles", Physics Letters, Section A: General, Atomic and Solid State Physics, vol. 370, no. 2, pp. 158-161, 2007. AbstractWebsite
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Badr, Y. A., I. M. Taher, M. M. Bahgat, and D. F. Ghoneim, "Deep sclerectomy using Erbium: YAG laser in pig's eyes", Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 5, no. 3, pp. 253-261, 2004. Abstract
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Badr, Y. A., and S. Awad, "On the low temperature phase transition in (NH4)2SO4", Journal of Physics and Chemistry of Solids, vol. 45, no. 3, pp. 351-353, 1984. AbstractWebsite
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Badr, Y. A., L. M. A. El-Gawad, and M. E. Ghaith, "Morphological changes of the root surface and fracture resistance after Treatment of root fracture by CO2 laser and glass ionomer or mineral trioxide Aggregates.", Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 7162, 2009. Abstract
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Badr, Y., and M. A. Mahmoud, "Size-dependent surface-enhanced Raman scattering of sodium benzoate on Silver nanoparticles", Journal of Molecular Structure, vol. 749, no. 1-3, pp. 187-192, 2005. AbstractWebsite
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Badr, Y. A., and S. B. El-Guiziri, "Effect of γ-radiation on the phase transition temperature of Li0.5(NH4)0.5SO4", Journal of Physics and Chemistry of Solids, vol. 50, no. 12, pp. 1261-1264, 1989. AbstractWebsite
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Badr, Y., and M. A. Kareim, "New applications of lasers in photobiology and photochemistry", AIP Conference Proceedings, vol. 748, pp. 242-248, 2005. Abstract
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Badr, Y. A., M. S. Aly, M. F. Hassan, A. M. Elmahdy, and A. M. Azzam, "Far field scattering of Gaussian beam by an infinitely long conducting circular cylinder", 2nd Workshop on Teaching Photonics at Egyptian Engineering Faculties and Institutes, pp. 68-83, 2000. Abstract
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Badr, Y. A., and S. B. El-Guiziri, "Effect of γ-radiation on the phase transition temperature of Li0.5(NH4)0.5SO4", Journal of Physics and Chemistry of Solids, vol. 50, no. 12, pp. 1261 - 1264, 1989. AbstractWebsite

Polycrystalline lithium-ammonium sulphate samples were subjected to X-ray diffraction analysis for determining the lattice parameters of the prepared mixed crystals. The compositions of the samples were determined using X-ray microanalysis. The Li0.5(NH4)0.5SO4 samples were irradiated with different doses of γ-radiation in order to investigate the effect of this ionizing radiation on the phase transition temperatures Tc1 and Tc2. The temperature dependence of the d.c. resistivity ρd.c. and dielectric constant ϵ of irradiated samples showed (i) a shift of Tc1 to higher temperatures; (ii) a shift of Tc2 to lower temperatures; and (iii) the appearance of a new anomaly near 128°C at moderately high γ-doses. The mechanisms giving rise to this behaviour are discussed.

Badr, Y., and M. A. Mahmoud, "Manifestation of the silver nanoparticles incorporated into the poly vinyl alcohol matrices", Journal of Materials Science, vol. 41, no. 12, pp. 3947-3953, 2006. AbstractWebsite
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Badr, Y. A. K., S. V. Karpov, and A. A. Shultin, "SPECTROSCOPIC MANIFESTATION OF THERMALLY ACTIVATED DISORDERING OF NITRATE IONS IN CsNO3AND NaNO3CRYSTALS.", Sov Phys Solid State, vol. 15, no. 8, pp. 1692-1693, 1974. AbstractWebsite
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Badr, I. H. A., M. Gouda, R. Abdel-Sattar, and H. E. M. Sayour, "Reduction of thrombogenicity of PVC-based sodium selective membrane electrodes using heparin-modified chitosan", Carbohydrate Polymers, vol. 99, pp. 783 - 790, 2014. AbstractWebsite

Abstract Heparin-modified chitosan (H-chitosan) membrane was utilized to enhance biocompatibility of sodium selective membrane electrode based on the highly thrombogenic polyvinyl chloride (PVC). Sodium ion sensing film was prepared using PVC, sodium ionophore-X, potassium tetrakis(chlorophenyl)-borate, and o-nitrophenyloctylether. The PVC-based sensing film was sandwiched to chitosan or H-chitosan to prevent platelet adhesion on the surface of PVC. Potentiometric response characteristics of PVC-chitosan and PVC-H-chitosan membrane electrodes were found to be comparable to that of a control \{PVC\} based sodium-selective electrode. This indicates that chitosan and H-chitosan layers do not alter the response behaviour of the PVC-based sensing film. Biocompatibility of H-chitosan was confirmed by in vitro platelet adhesion study. The platelet adhesion investigations indicated that H-chitosan film is less thrombogenic compared to PVC, which could result in enhancement of biocompatibility of sodium selective membrane electrodes based on PVC, while maintaining the overall electrochemical performance of the PVC-based sensing film.

Badr, Y., M. G. A. E. Wahed, and M. A. Mahmoud, "On 308 nm photofragmentation of the silver nanoparticles", Applied Surface Science, vol. 253, no. 5, pp. 2502-2507, 2006. AbstractWebsite
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Badr, Y., S. Abd El-wanees, and M. A. Mahmoud, "The ro-vibrational spectra of CO molecule resulting from the photolysis of acetone", Journal of Photochemistry and Photobiology A: Chemistry, vol. 167, no. 2-3, pp. 159-162, 2004. AbstractWebsite
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Badr, Y. A., and R. Kamel, "Low‐temperature structure changes in nitrate crystals", physica status solidi (a), vol. 53, no. 2, pp. K161-K164, 1979. AbstractWebsite
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Badr, Y. A., and S. I. Hassab Elnaby, "Spectroscopic identification of lipid, protein and DNA changes in breast cancer tissues", AIP Conference Proceedings, vol. 888, pp. 160-166, 2007. Abstract
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Badr, Y., and S. HassabElnaby, "Raman, Mid and Nir FTIR absorption spectra of breast cancer reveal a good diagnosis tool", Proceedings of SPIE - The International Society for Optical Engineering, vol. 5325, pp. 78-88, 2004. Abstract
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Badr, Y. A., and S. Awad, "On the Low Temperature Phase Transition in Ammonium Sulfate", physica status solidi (a), vol. 72, no. 1, pp. K27-K32, 1982. AbstractWebsite
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Badr, Y., I. K. Battisha, and M. A. Salem, "Up-conversion luminescence application in Er3+: TiO2 thin film prepared by dip coating sol-gel route", Indian Journal of Pure and Applied Physics, vol. 46, no. 10, pp. 706-711, 2008. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "On interaction of 193 nm excimer laser with acetone (3s Rydberg state)", Journal of Molecular Structure, vol. 748, no. 1-3, pp. 189-193, 2005. AbstractWebsite
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Badr, Y. A., S. B. El‐Giziri, T. M. Hammad, and P. E. Tomaszewski, "Comment on the Paper “On the Effect of Doping on the Mechanism of Phase Transition of Some Inorganic Compounds”", physica status solidi (a), vol. 112, no. 1, pp. K13-K14, 1989. AbstractWebsite
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Badr, Y., and M. A. Mahmoud, "Optimization and photophysics of cadmium selenide nanoparticles", Physica B: Condensed Matter, vol. 369, no. 1-4, pp. 278-286, 2005. AbstractWebsite
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Badr, Y., Z. I. Ali, and R. M. Khafagy, "UV laser induced fluorescence of unirradiated and irradiated low density polyethylene", Journal of Photochemistry and Photobiology A: Chemistry, vol. 124, no. 1-2, pp. 35-40, 1999. AbstractWebsite
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Badr, Y. A., M. I. Youssif, T. El-Sherbini, and D. Hassan, "Fabrication and characterization of superconducting nano layer by pulsed laser deposition", Life Science Journal, vol. 13, no. 5, pp. 8-20, 2016. AbstractWebsite
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