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  1. No Access

    Article

    SERS performance of cubic-shaped gold nanoparticles for environmental monitoring

    A subtle change in the geometry of nanoparticles affects the local electromagnetic field distribution and intensity of the analytes under optical excitation, which leads to distinguished enhancement effects on...

    Javad B. M. Parambath, Gwangmin Kim, Changseok Han… in Research on Chemical Intermediates (2023)

  2. No Access

    Article

    Immobilization of Gold–Aryl Nanoparticles Over Graphene Oxide Platforms: Experimental and Molecular Dynamics Calculations Study

    Graphene oxide (GO) was decorated with gold–aryl (Au–C) nanoparticles of AuNPs–COOH by sodium borohydride reduction of aryldiazonium tetrachloroaurate(III) salt at room temperature in aqueous solutions. Morpho...

    Javad B. M. Parambath, Mahreen Arooj, Maria Omastova… in Journal of Cluster Science (2023)

  3. No Access

    Article

    Occurrence, analysis and removal of pesticides, hormones, pharmaceuticals, and other contaminants in soil and water streams for the past two decades: a review

    Chemical waste constitutes a group of environmental pollutants including pesticides, heavy metals, hormones, pharmaceuticals, and healthcare products that are widely distributed in our environment due to their...

    Sofian Kanan, Matthew Moyet, Khaled Obeideen… in Research on Chemical Intermediates (2022)

  4. No Access

    Article

    Potential sensing of cyanide anion using fluorescent lysozyme gold-aryl bioconjugates

    Cyanide anion sensing using gold-aryl nanoparticles bioconjugated with lysozyme is reported. The chemical dissolution of lysozyme capped gold nanoparticles (Lys-AuNPs) in the presence and absence of aryl shell...

    Javad B. M. Parambath, Mehavesh Hameed, Ahmed A. Mohamed in Chemical Papers (2022)

  5. No Access

    Article

    Aryldiazonium gold salts as efficient oxidants for polymerization of anilines

    Investigating transition metal oxidants is a fundamental scientific interest for the synthesis of polymer nanocomposites. In this study, we attempted for the first time to use aryldiazonium cation stabilized w...

    Maryam M. Mouselly, Ihsan A. Shehadi, A. Young Choi… in Research on Chemical Intermediates (2022)

  6. No Access

    Chapter

    Aryldiazonium Tetrachloroaurate(III) Salts: Synthesis, Structure, and Fundamental Applications

    of aryldiazonium tetrachloroaurate(III) salts [X–4–C6H4N≡N]AuCl4 (X=F, Cl, Br, I, CN, NO2, COOH, bisaniline, triazine-based dendrimers, C8F17, C6H13) is reported by the protonation of anilines with chloroauric a...

    Ahmed A. Mohamed in Aryl Diazonium Salts and Related Compounds (2022)

  7. Article

    Computational insights into binding mechanism of drugs as potential inhibitors against SARS-CoV-2 targets

    Because of the scale of the novel coronavirus (COVID-19) pandemic and the swift transmission of this highly contagious respiratory virus, repurposing existing drugs has become an urgent treatment approach. The...

    Mahreen Arooj, Ihsan Shehadi, Chahlaa N. Nassab, Ahmed A. Mohamed in Chemical Papers (2022)

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  8. No Access

    Article

    FRET-based fluorescent probe for drug assay from amino acid@gold-carbon nanoparticles

    Biocompatible and luminescent nanostructures synthesized by cap** gold-carbon nanoparticles (HOOC-4-C6H4-AuNPs) with amino acids tyrosine, tryptophan, and cysteine were used for the quantitative estimation of r...

    Mehavesh K. Hameed, Javad B. M. Parambath… in Analytical and Bioanalytical Chemistry (2021)

  9. No Access

    Article

    Facile protic hydration of acetonitrile to protonated acetamide at oxygen mediated by chloroauric acid: insights from experimental and calculations

    Chemical transformations such as nitrile hydration or carbon–oxygen bond formation reactions under gentle conditions are important in the pharmaceutical industry because of the presence of potentially delicate...

    Ihsan Shehadi, Fatima Abla, Bryan Wakefield… in Research on Chemical Intermediates (2020)

  10. No Access

    Article

    A Silver(I)–Gold(II) Hexanuclear Guanidinate–Benzoate Cluster with Short Au–Au Bonds

    Attempts to remove the halide atoms from [Au2(hpp)2Cl2], 1, Hhpp = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine, with Ag(I) benzoate lead to the formation of the Au(I)–Ag(I) product, [(PhCOO)2Au4(hpp)4Ag2(P...

    Ahmed A. Mohamed, Hanan E. Abdou, Andrew Mayer… in Journal of Cluster Science (2008)

  11. No Access

    Article

    Synthesis, Characterization, Luminescence, and Electrochemistry of New Tetranuclear Gold(I) Amidinate Clusters: Au4[PhNC(Ph)NPh]4, Au4[PhNC(CH3)NPh]4, and Au4[ArNC(H)NAr]4

    The syntheses and the X-ray structures of the tetranuclear gold(I) benzamidinate, Au4[PhNC(Ph)NPh]4, and the tetranuclear gold(I) acetamidinate, Au4[PhNC(CH3)NPh]4, clusters are reported. The clusters are produce...

    Hanan E. Abdou, Ahmed A. Mohamed, John P. Fackler Jr. in Journal of Cluster Science (2007)

  12. No Access

    Article

    CO oxidation over Au/TiO2 prepared from metal-organic gold complexes

    A series of Au/TiO2 catalysts has been prepared from precursors of various metal-organic gold complexes (Au n , n = 2–4) and their catalytic activity for CO oxidation studied. Th...

    Zhen Yan, Sivadinarayana Chinta, Ahmed A. Mohamed, John P. Fackler Jr.… in Catalysis Letters (2006)

  13. No Access

    Article

    Tetranuclear Gold(I) Clusters with Nitrogen Donor Ligands: Luminescence and X-Ray Structure of Gold(I) Naphthyl Amidinate Complex

    The syntheses and characterization of gold(I) naphthyl, pentafluorophenyl, and trifluoromethylphenyl amidinate complexes are reported. The tetranuclear clusters are obtained from the reaction of Au(tetrahydrot...

    Hanan E. Abdou, Ahmed A. Mohamed, José M. López-de-Luzuriaga… in Journal of Cluster Science (2004)

  14. No Access

    Article

    Gold(I) Formamidinate Clusters: The Structure, Luminescence, and Electrochemistry of the Tetranuclear, Base-Free [Au4(ArNC(H)NAr)4]

    The structures of the tetragold(I) formamidinate cluster complexes, [Au4(ArNC(H)NAr)4], Ar=C6H4-4-OMe (1), C6H3-3,5-Cl (2), C6H4-4-Me (3), have been characterized by x-ray crystallography. The range of Au⋅⋅⋅Au di...

    Ahmed A. Mohamed, Hanan E. Abdou, Michael D. Irwin… in Journal of Cluster Science (2003)

  15. No Access

    Article

    Gold(I) Pyrazolate Clusters: The Structure and Luminescence of the Tetranuclear, Base-Stabilized [(dppm)2Au4(3,5-Ph2Pz)2](NO3)2 ⋅ H2O

    The tetranuclear Au(I) pyrazolate complex, [(dppm)2Au4(3,5-Ph2Pz)2](NO3)2 ⋅ H2O, 1, has been synthesized and structurally characterized. It is the first tetranuclear pyrazolate of Au(I) to have been found, althou...

    Ahmed A. Mohamed, José M. López-de-Luzuriaga… in Journal of Cluster Science (2003)