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Sagdinc, S. G., D. Erdas, I. Gunduz, and A. E. Sahinturk, "FT-IR and FT-Raman spectra, molecular structure and first-order molecular hyperpolarizabilities of a potential antihistaminic drug, cyproheptadine \{HCl\}", Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 134, pp. 350 - 360, 2015. AbstractWebsite

Abstract Cyproheptadine hydrochloride (CYP HCl) {4-(5H-dibenzo[a,d]-cyclohepten-5-ylidene)-1-methylpiperidine hydrochloride} is a first-generation antihistamine with additional anticholinergic, antiserotonergic, and local-anesthetic properties. The geometry optimization, Mulliken atomic charges and wavenumber and intensity of the vibrational bands of all of the possible modes of \{CYP\} \{HCl\} have been calculated using ab initio Hartree–Fock (HF) and density functional theory (DFT) employing the \{B3LYP\} functional with the 6-311G(d,p) basis set. We have compared the calculated İR\} and Raman wavenumbers with experimental data. Quantum-chemical calculations of the geometrical structure, energies, and molecular electrostatic potential and \{NBO\} analysis of \{CYP\} \{HCl\} have been performed using the B3LYP/6-311G(d,p) method. The electric dipole moment (μ), static polarizability (α) and the first hyperpolarizability (β) values of the title compound have been computed using \{HF\} and \{DFT\} methods. The study reveals that the antihistaminic pharmacological property of \{CYP\} \{HCl\} has a large β value and, hence, may in general have potential applications in the development of non-linear optical materials. The experimental and calculated results for \{CYP\} \{HCl\} have also been compared with those for mianserin HCl.

Salah, A., A. Mansour, M. B. Mohamed, I. M. Azzouz, S. Elnaby, and Y. Badr, "Effects of nanoparticles size and concentration and laser power on nonlinear optical properties of Au and Au-CdSe nanocrystals", Applied Surface Science, vol. 353, pp. 112-117, 2015. AbstractWebsite
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Salem, H. G., M. S. Mansour, Y. Badr, and W. A. Abbas, "CW Nd:YAG laser cutting of ultra low carbon steel thin sheets using O2 assist gas", Journal of Materials Processing Technology, vol. 196, no. 1-3, pp. 64-72, 2008. AbstractWebsite
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Salem, H. G., W. A. Abbas, M. S. Mansour, and Y. A. Badr, "Parametric study on the CW Nd: YAG laser cutting quality of 1.25 mm ultra low carbon steel sheets using O2 assist gas", AIP Conference Proceedings, vol. 888, pp. 186-196, 2007. Abstract
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Salem, D. S., S. A. Shoman, and Y. Badr, "Laser-triggered release of drug encapsulated in chitosan nanoparticles for therapy of hepatocellular carcinoma ", Progress in biomedical optics and imaging-SPIE, 2019.
Samsonov, A. V., M. M. Bogina, E. V. Bibikova, A. Y. Petrova, and A. A. Shchipansky, "The relationship between adakitic, calc-alkaline volcanic rocks and TTGs: implications for the tectonic setting of the Karelian greenstone belts, Baltic Shield", Lithos, vol. 79, no. 1–2, pp. 83 - 106, 2005. AbstractWebsite

Two types of coeval acid-intermediate rocks with different petrological, geochemical and isotopic features have been discovered among volcanic rocks and surrounding synkinematic tonalite–trondhjemite–granodiorite (TTG) plutons of Late Archaean greenstone belts in the Karelian granite–greenstone terrane. Type-1 rocks comprise trondhjemites and sub-volcanic, occasionally volcanic dacite–rhyolite rocks. They are characterized by high Sr, low Y and \{HREE\} contents, high Sr/Y ratios, and strongly fractionated \{REE\} patterns with no significant positive or negative Eu anomaly. Initial ɛNd is positive, indicating a generation from juvenile source with little or no contribution of ancient continental crust. Type 2 is represented by diorite–granodiorites and calc-alkaline basalt–andesite–dacite–rhyolite (BADR) series. As compared to type 1, these rocks differ by their lower Sr, higher Y and \{HREE\} contents, lower Sr/Y ratios and less fractionated \{HREE\} patterns with negative Eu anomalies. Initial ɛNd varies from negative to positive values, thus indicating a variable contribution of sialic crust. Geochemistry of the two magmatic series suggests their formation in a convergent plate margin setting. The type-1 rocks resemble Phanerozoic adakites, which represent slab-derived melts contaminated by overlying mantle wedge. The type-2 rocks resemble \{BADR\} series, which were derived from a mantle wedge metasomatized by slab-derived fluids and melts, with subsequent variable crustal contamination. The spatial distribution of these two types of magmatic series defines the asymmetry of the studied granite–greenstone structures, which presumably reflects the primary lateral zoning of island arc formed under specific thermal conditions in the Archaean mantle. Adakite melts upraised to the surface in the frontal part of the island arc, where mantle wedge was thin, showing no or little interaction with metasomatized mantle, and formed adakite-type plutonic and sub-volcanic rocks. At greater depths, adakitic melts and fluids interacted with the overlying mantle wedge and caused its partial melting with generation of calc-alkaline \{BADR\} volcanic rocks and diorite–granodiorite plutons in the rear part of the island arc. Our data suggest that greenstone belt volcano-plutonic arcs were initiated on different types of crust, which presumably determined the petrogenetic and isotope variations of the studied BADR- and adakite-type island-arc complexes.

Selvaggi, R., L. Tarpani, A. Santuari, S. Giovagnoli, and L. Latterini, "Silica nanoparticles assisted photodegradation of acridine orange in aqueous suspensions", Applied Catalysis B: Environmental, vol. 168–169, pp. 363 - 369, 2015. AbstractWebsite

Abstract Silica nanostructured materials are often used as catalyst support but their catalytic role has not been deeply investigated yet. In the present study, the photocatalytic degradation of acridine orange zinc chloride double salt (AO) has been studied using silica nanoparticles (NPs) as catalysts. \{NPs\} of different size (55 and 146 nm) were prepared by a sol–gel procedure and their surface was modified with amino groups to investigate the role of the chemical groups linked to the silica surface on the dye degradation. The silica nanomaterials were fully characterized by use of transmission electron microscopy (TEM), zeta potential measurements and UV–vis spectrophotometric methods. The photodegradation experiments were carried out irradiating at 313 or 490 nm for 50 min the aqueous samples containing the dye and the silica \{NPs\} of 55 or 146 nm in diameter. The photocatalytic degradation of the dye was determined from the decrease of its fluorescence intensity. \{AO\} fluorescence intensity did not change when bare SiO2 beads were used as catalysts, whereas an efficient decoloration (up to 58%) was achieved with amino functionalized NPs, with a photodegradation rate constant value of 0.136 m−1. The data collected from the degradation experiments demonstrated that the functional groups on the silica surface have a fundamental role in the efficiency of the degradation processes.

Shaaban, I. A., T. A. Mohamed, W. M. Zoghaib, L. D. Wilson, R. S. Farag, M. S. Afifi, and Y. A. Badr, "Tautomerism, Raman, infrared and ultraviolet-visible spectra, vibrational assignments, MP2 and B3LYP calculations of dienol 3,4-dihydroxypyridine, keto-enol 3-hydroxypyridin-4-one and keto-enol dimer", Journal of Molecular Structure, vol. 1043, pp. 52-67, 2013. AbstractWebsite
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Shaltout, I., and Y. Badr, "Manifestation of Nd ions on the structure, Raman and IR spectra of (TeO2-MoO-Nd2O3) glasses", Journal of Materials Science, vol. 40, no. 13, pp. 3367-3373, 2005. AbstractWebsite
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Shaltout, I., and Y. Badr, "Effects of Sm3+/Yb3+co-doping and temperature on the Raman, IR spectra and structure of [TeO2-GeO2-K2O-Sm2O3/Yb2O3] glasses", Physica B: Condensed Matter, vol. 381, no. 1-2, pp. 187-193, 2006. AbstractWebsite
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Shamah, A. M., S. Ahmed, R. Kamel, and Y. Badr, "Structural changes of ((NH4)1–xKx)2SO4 crystals", physica status solidi (a), vol. 100, no. 1, pp. 115-119, 1987. AbstractWebsite
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Soliman, W., S. El-Ansary, and Y. Badr, "Optical characterization of one-step synthesis of ternary nanoalloy by laser ablation of stainless steel target in Hexane", Optics and Laser Technology, vol. 97, pp. 41-45, 2017. AbstractWebsite
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Solouma, N. H., A. - B. M. Youssef, Y. A. Badr, and Y. M. Kadah, "A new real-time retinal tracking system for image-guided laser treatment", IEEE Transactions on Biomedical Engineering, vol. 49, no. 9, pp. 1059-1067, 2002. AbstractWebsite
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Solouma, N. H., A. - B. M. Youssef, Y. A. Badr, and Y. M. Kadah, "Robust computer-assisted laser treatment using real-time retinal tracking", Annual Reports of the Research Reactor Institute, Kyoto University, vol. 3, pp. 2499-2502, 2001. Abstract
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Solouma, N. H., A. - B. M. Youssef, Y. A. Badr, and Y. M. Kadah, "Real-time retinal tracking for laser treatment planning and administration", Proceedings of SPIE - The International Society for Optical Engineering, vol. 4322, no. 3, pp. 1311-1321, 2001. Abstract
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