ahmedabudief

Dr. Ahmed Mohammed Abu-Dief Mohammed

Assistant Professor - Assistant professor of Inorganic and Physical Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

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Publications Which contain the keyword: nanoparticles


2018-10-05 13:23:42 Keywords EDAX, Steel slag, magnetite, akaganéite, nanoparticles, TEM, SEM, XRD,
Steel slag as a raw material for preparing magnetite and akaganéite nanoparticles
More than 400 million tons of iron and steel slag is produced each year in the world. Most of the steel slag is recycled in the developed countries, mainly for use as construction aggregate, however excess steel slag is usually sent to landfills for disposal. Slag dumping can have an impact on the environment due to the release of harmful ... Read more

Some new nano-sized Fe(II), Cd(II) and Zn(II) Schiff base complexes : Sonochemical synthesis, characterization, DNA interaction, in vitro antimicrobial and anticancer activities
The complexes of Fe(II), Cd(II) and Zn(II) with Schiff base derived from 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared. Melting points, decomposition temperatures, Elemental analyses, TGA, conductance measurements, infrared (IR) and UV–Visible spectrophotometric studies were utilized in characterizing the compounds. The UV–Visible spectrophotometric analysis revealed 1:1 (metal-ligand) stoichiometry for the three complexes. In addition to, the prepared complexes have been used ... Read more

Sonochemical synthesis, DNA binding, antimicrobial evaluation and in vitro anticancer activity of nano-sized Cu(II), Co(II) and Ni(II) chelates  as precursors for metal oxides
Three new nano sized Cu(II), Co(II) and Ni(II) complexes of imine ligand derived from the condensation of 2-amino-3-hydroxypyridine and 3-methoxysalicylaldehyde have been prepared and investigated using various chemical techniques such as NMR, elemental analysis, molar conductance, IR, electronic spectra, TGA and magnetic momentmeasurements. The obtained chemical analysis data showed that the synthesis of 1:1 (metal:ligand) ratio and octahedral geometry was ... Read more

2018-10-01 14:02:38 Keywords Pharmaceutical, Oxides, nanoparticles, Imine complexes, TGA,
Pharmaceutical Applications of Nano Imine Complexes and Their Oxides
Some new nano-sized Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Cd(II), Zn(II),, Pb(II) and Ag(I) complexes with imine ligands derived from 2-amino-3-hydroxypyridine (ahp) and 3-methoxysalicylaldehyde (v) or 4-nitrobenzaldehyde (nb) were prepared by sonochemical method. Melting point, decomposition temperature, infrared (IR) and NMR spectra, elemental analyses, conductance and magnetic susceptibility measurements, TG and UV – Visible spectrophotometric studies were utilized in characterizing of ... Read more

Sonochemical synthesis, structural inspection and semiconductor behavior of three new nano sized Cu(II), Co(II) and Ni(II) chelates
Three novel nanosized Cu(II), Co(II) and Ni(II) complexes of imine ligand attained from the condensation of 2‐amino‐3‐hydroxypyridine and 3‐methoxysalicylaldehyde have been prepared and investigated using diverse chemical methods such as NMR, CHN analysis, conductance, IR, Spectral studies, TGA and magnetic moment measurements. The obtained data confirmed that the synthesized complexes have metal: ligand ratio of 1:1 and octahedral geometry for ... Read more

Catalytic Oxidation of Benzyl Alcohol using Nanosized Ni/Cu  Schiff-Base Complexes and their Metal Oxides Nanoparticles
Three novel nanosized Cu and Ni Schiff-base complexes (ahpvCu, ahpnbCu, and ahpvNi) incorporating imine ligands derived from the condensation of 2-amino-3-hydroxypyridine with either 3-methoxysalicylaldehyde or 4-nitrobenzaldehyde were synthesized by a sonochemical approach. The structure of the ligands and their complexes was confirmed by IR, NMR spectroscopy, electronic spectra, elemental analysis, TGA, molar conductivity, and magnetic moment analyses. The results revealed ... Read more

2018-10-31 06:09:40 Keywords liver, TiO2, nanoparticles, milk thistle,
Ultrastructure, Histochemical and Biochemical effects of Titanium dioxide nanoparticles in Adult male albino rat liver and possible prophylactic effects of Milk thistle seeds
ABSTRACT: Nanotechnology refers to material at the nanometer scale. It has the commercial application of products in the fields of medicine, engineering, manufacturing, information and environmental technology. Titanium dioxide nanoparticles (Tio2 NPs) are manufactured worldwide in large quantities for use in a wide range of applications including pigments, plastics, papers, inks, food colorants, toothpastes and cosmetic manufacturing. Milk thistle is ... Read more

Sonochemical synthesis, structural inspection and semiconductor behavior of three new nano sized Cu(II), Co(II) and Ni(II) chelates based on tri‐dentate NOO imine ligand as precursors for metal oxides
Three novel nanosized Cu(II), Co(II) and Ni(II) complexes of imine ligand attained from the condensation of 2‐amino‐3‐hydroxypyridine and 3‐methoxysalicylaldehyde have been prepared and investigated using diverse chemical methods such as NMR, CHN analysis, conductance, IR, Spectral studies, TGA and magnetic moment measurements. The obtained data confirmed that the synthesized complexes have metal: ligand ratio of 1:1 and octahedral geometry for ... Read more

2018-10-21 17:11:46 Keywords nanoparticles, Nano-Tungsten Oxide, Humidity sensing,
Synthesis and Characterization of Nano-Tungsten Oxide Precipitated onto Natural Inorganic Clay for Humidity-Sensing Applications
wet chemical method was used to obtain tungsten oxide nanoparticles from tungsten tetrachloride and natural microfibrous inorganic clay (sepiolite) as a starting material. Precipitation of tungsten oxide species onto sepiolite under basic conditions and subsequent thermal treatment was investigated, prompted by the abundance of sepiolite in nature and the useful environmental applications that could be attained. Laser granulometry, X-ray diffraction, ... Read more

2018-10-05 13:22:55 Keywords thermal oxidation, nanoparticles, Optical ,
The disclosed transformation of pre-sputtered Ti films into nanoparticles via controlled thermal oxidation
Nanoparticles of TiO2 were successfully prepared from pre-sputtered Ti films using the controlled thermal oxidation. The effect of oxidation temperature on structural, morphological and optical properties in addition to photocatalysis activity of the sputtered films was tested and explained. Analysis of XRD and EDAX elucidated the enhancement in crystallization and oxygen content with the increase of oxidation temperature. SEM depicted ... Read more