Farah Muaiad Ibrahim

RESEARCH INTERESTS

Inorganic chemistry

Scopus Publications

Comprehensive characterization of benzothiazole-hydrazone metal (II) complexes via spectroscopic, biological assignment, electrochemical, DFT, and molecular docking approaches
Farah M. Ibrahim, Esam A. Gomaa, Rania R. Zaky, Emad Yousif, Mahmoud N. Abd El-Hady
Scientific Reports, 2026
An inventive benzothiazole hydrazone Schiff base ligand (H 2 p -NP), and its cobalt(II), nickel(II), and copper(II) complexes were synthesized and characterized via 1 H/ 13 C-NMR, FTIR, UV-Vis, C.H.N. microanalysis, magnetic moment susceptibility, EDX, TGA, DRS, ESR, SEM, and mass spectroscopy. The analytical and spectral data indicate that the coordination nature of H 2 p -NP with Co(II) and Cu(II) is a neutral bidentate, and produces octahedral and square-planar complexes, respectively, while a neutral tridentate octahedral complex is formed with Ni(II). DFT calculations supported the proposed geometries. The Cu(II) complex exhibited clear redox behavior in cyclic voltammetry. Antimicrobial evaluation toward Staphylococcus aureus , Escherichia coli , and Candida albican s revealed that the Cu(II) complex showed the greatest activity among the tested compounds. Molecular docking (MOE) further confirmed the high binding potential of the active complex sites toward relevant biological targets.
Structural fabrication of acetato hydrazone-metal (II) complexes anchored with benzothiazole and p-chlorobenzaldehyde moieties centered on a malonamide core
Farah M. Ibrahim, Esam A. Gomaa, Rania R. Zaky, Emad Yousif, Mahmoud N. Abd El-Hady
Journal of Molecular Structure, 2026
Kinetic Insights into Cadmium and Lead Removal Using Cellulose-Based Schiff Base Complexes as Adsorbents
Farah Muaiad Ibrahim
Indonesian Journal of Chemistry, 2025
The removal of heavy metals from water is a key environmental challenge. This study focuses on synthesizing and using Schiff base-modified cellulose as adsorbents for cadmium (Cd) and lead (Pb) ions. The materials were developed by modifying cellulose and incorporating Schiff base ligands with Fe(III) and Zn(II) binding sites (Schiffs 1 and 2). Characterization through EDX, SEM, FTIR, elemental analysis, XRD, and TGA confirmed improved surface properties and active adsorption sites. Adsorption followed pseudo-second-order kinetics, indicating chemisorption. The monolayer adsorption capacities for Schiff 1 were 83 mg/g Cd and 78 mg/g Pb, while for Schiff 2, they were 70 mg/g Cd and 63 mg/g Pb. Optimal conditions included solution pH 4.0–5.0, stirring for 45–60 min, 100 mg/L metal concentration, and room temperature (25 ± 2 °C). EDTA efficiently desorbed Cd and Pb for 4 cycles with over 85% efficiency. This study highlights the material’s potential as a cost-effective and eco-friendly solution for wastewater treatment.
Fluorescent properties of chitosan-stabilized bisdemethoxycurcumin-silver nanoparticles: Synthesis and characterization
Shayma M. Ahmad, Farah M. Ibrahim, Amer Adnan Hasan, Haitham Mawlood Mikhlif, Rasha Saad Jwad, Zamzam Alhuwaymil, Sohad A. Alshareef, Mohammed S.S. Alyami, Mohammed H. Al-Mashhadani, Srikanth Kommanaboyina
Results in Chemistry, 2024
The extraction and modification of naturally-occurring compounds are widely performed due to their valuable medicinal and physical properties. Herin, we reported the extraction of bis-demethoxycurcumin from Ragbrai turmeric root. The isolated derivative was characterized by X-ray diffraction, IR, and NMR spectroscopy. Also, the green synthesis of bis-demethoxycurcumin chitosan silver BDMC-Ag-Ch nanoparticles is illustrated. These nanoparticles are identified by atomic force microscopy AFM and exhibit average particle size ∼ 53.41 nm The crystalline structure was confirmed by XRD analysis, which showed distinct peaks corresponding to silver oxide nanoparticles and Zeta power measurements revealed stable dispersion of the nanoparticles, indicating a good chitosan coating on the surface of bis-demethoxycurcumin Ag nanoparticles. The absorption bands at 240 and 405 nm are due to oxygen atom (n → π*) and aromatic (π → π*) transitions in curcumin and Chitosan molecules. The photoluminescence (PL) study of synthesized BDMC-Ag-Ch nanoparticles demonstrated an existence of two emission excited states in light-emitting, namely local excited (LE) and intramolecular charge transfer (ICT) emission states, due to the aromatic conjugation system within BDMC units and intra charge transfer between the silver ion and organic part.
Effect of Banana Peels Extract Ratio on The Sustainable Eco-Friendly Synthesis of Zinc Oxide Nanoparticles
Atheel Alwash, Farah M. Ibrahim, Salam Mohammed
Al Nahrain Journal for Engineering Sciences, 2023
In this work, environmentally friendly zinc oxide nanoparticles was produced using sustainable green technology. With several loading amounts, such as 5%, 10%, 50%, and 100%, the banana peel extract was utilized as a capping agent. This was followed by calcinations at 400 ºC for 3 h in a muffle furnace. To evaluate the physical and chemical change of the synthesized nanoparticles, XRD, FTIR, UV-VIS and SEM/EDAX was used. The characterization results reveald that the all the green synthesized ZnO NPs samples strongly supports the well-crystallinity with high phase purity. The average crystallite size of the prepared samples was calculated using Debye-Scherer's formula and the results shows that with an increase in extract amount, the average crystallite size was shrinking. The FTIR result verified the successful chemical reaction between zinc salt and banana peel extract. The UV-VIS results showed the effect of size quantisization phenomena at 100% extract adding. Finally, the SEM images for all the prepared samples confirm the spherical shape.
Green preparation of Cu nanoparticles of the avocado seed extract as an adsorbent surface
Farah M. Ibrahim, Dina A. Najeeb, Hamsa ThamerSadeq
Materials Science for Energy Technologies, 2023
The pollution of water with heavy metals is one of the most important health and economic problems globally. Therefore, the green preparation of Cu2+ nanoparticles from avocado seed extract can provide a method of adsorbing these heavy metals at the lowest cost and easily and safely. In addition, our research was motivated by the ability of these nanoparticles to inhibit some types of bacteria. In this study, seed extract was prepared and then reacted with copper2+ solution to obtain nanoparticles using the biosynthesis method. These nanoparticles were diagnosed by means of the FESEM, XRD, AFM, UV–vis, and FTIR techniques. FESEM images showed Cu peaks at about 1 and 9 keV of a crystal nature. The crystal size was 62.25 nm, according to the XRD results. The AFM images showed that the spherical particles had an average height of 21.289 nm. AUV–vis absorption band was observed at 530 nm, indicating copper2+ nanoparticles. The FTIR spectra showed the interaction of the seed extract with Cu2+ ions via a reduction reaction. The synthesized copper2+ nanoparticles demonstrated the inhibition of bacterial activity when used against E. coli and Staphylococcus aureus. Copper nanoparticles were used as a surface adsorbent for cadmium2+ ions of contaminated water, and the nanoparticles showed an active role.
Performance of Schiff Bases Metal Complexes and Their Ligand in Biological Activity: A Review
, Farah M. Ibrahim, Saifaldeen M. Abdalhadi, and
Al Nahrain Journal of Science, 2021
Schiff bases are a broad class synthesized compound, which is prepared for the condensation process between the primary amine group and an aldehyde or ketone group. Schiff base metal complexes play an important role in many applications such as biological activity, catalytic activity, and optical property. The wide range application of Schiff base metal complexes came from the versatility of Schiff base reactions with many different transition metals. This flexibility of the reactions was given these complexes, many different properties and uses in a biological human system such as antibacterial, antifungal, anticancer, antimalarial, and others. This review gives many examples of Schiff bases, metal complexes, and there ligands with biological applications in the human system.
Polyphosphates as thermal stabilizers for poly(vinyl chloride)
Dina S. Ahmed, Farah M. Ibrahim, Muna Bufaroosha, Mohammed H. Al-Mashhadani, Ali H. Jawad, Rahimi M. Yusop, Nadia Salih, Salam A. Mohammed, Emad Yousif
Materials Today Proceedings, 2021
Synthesis, characterization with theoretical study pd (Ii),ag(i)andcd(ii)complexesof 4-methylaminoantipyrin
International Journal of Pharmaceutical Research, 2020
Synthesis and characterization of Trimethoprim metal complexes used as corrosion inhibitors for carbon steel in acid media
F. M. Ibrahim, R.A.Hammza, D. H. Fadhil
International Journal of Corrosion and Scale Inhibition, 2019
Trimethoprim (TM) is an antibiotic used to treat bacterial infections as well as it is a heterocyclic compound, whose structure consists of 1,2,3-trimethoxybenzene and pyrimidine-2,4-diamine, therefore it can be used as a corrosion inhibitor due to easy production and low price on carbon steel in acidic media by adsorption process.Cr(III), Mn(II), Co(II), Ni(II) and Cu(II) complexes of Trimethoprim were synthesized and also used as a corrosion inhibitor.The Trimethoprim drug and its complexes were characterized by different spectroscopic methods: Ultraviolet-visible, Fourier transform infrared, conductivity measurements, thermal analysis (TG) and magnetic susceptibility measurement.Adsorption process can be attributed to changes in concentration of inhibitors with the acidity of a solution as well as the surface of the metal (carbon steel).The results of the experiment have shown the coordination of the Trimethoprim drug with the transition metal ions through nitrogen of pyrimidinyl ring so that square planar geometry was suggested for Mn(II), Ni(II), Cu(II) complexes while the Cr(III), Co(II) complexes have an octahedral geometry and these complexes have electrolyte properties.Corrosion inhibition on carbon steel was studied using weight loss method in one molar hydrochloric acid solution by organic inhibitor Trimethoprim and inorganic inhibitors (complexes) at different concentrations with different periods of time.The measurements have shown that Trimethoprim reduced the corrosion of the carbon steel surface and also the inhibition efficiency of the complexes increased with increasing concentration.The inhibition efficiency followed the order Co > Cu > Cr in one molar acidic solution.

Publications

Synthesis, characterization with theoretical study pd (Ii),ag(i)andcd(ii)complexesof 4-methylaminoantipyrin
Ibrahim, F.M.
,
Abdul-Hameed, F.M.
,
Salman, H.G.
International Journal of Pharmaceutical Research, 2020, 12, pp. 2133-2139
Article • Open Access
Synthesis and characterization of Trimethoprim metal complexes used as corrosion inhibitors for carbon steel in acid media
Ibrahim, F.M.
,
Hammza, R.A.
,
Fadhil, D.H.
International Journal of Corrosion and Scale Inhibition, 2019, 8(3), pp. 733-742