Publications by authors named "Abdullah Mahmood"

Background: The strong association between type 2 diabetes mellitus (T2DM) and fatty liver is well known, and its nomenclature has even recently changed to metabolic dysfunction-associated steatotic liver disease (MASLD). Healthy MASLD patients are frequently overlooked and maltreated, especially in Bangladesh. In this present study, we tried to correlate T2DM burden in apparently healthy, incidentally diagnosed fatty liver patients on ultrasound.

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This study investigates the wound-healing potential of Euphorbia guyoniana latex (EGL) in male Wistar rats, along with its biochemical composition and biological activities. Phytochemical analysis identified moderate levels of phenolics, flavonoids, and tannins, with HPLC revealing five phenolic compounds. EGL demonstrated strong antioxidant activity in DPPH assays, surpassing ascorbic acid in protecting red blood cells.

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A novel composite material, magnetic chitosan-clay/benzoin/FeO (CS-CY/Benz/FeO), was synthesized for effectively removing thionine dye (TH) from water solutions. The structural integrity and suitability of CS- CY/Benz/FeO composite for adsorption purposes were validated through extensive characterization techniques including BET, XRD, FTIR, and SEM. The adsorption efficiency was optimized through a Box-Behnken design (BBD) employing response surface methodology (RSM), focusing on variables such as adsorbent dose (A: 0.

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Fusion imaging (FI) technology using EchoNavigator that integrates live transesophageal echocardiogram and overlays on real-time fluoroscopy. We present our experience placing a right ventricular (RV) support device, a ProtekDuo, in our patient with post-operative RV failure using FI to guide the implantation.

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The surface characteristics of minerals have been crucial in predicting the interactions between chemicals, particularly in chemical flooding. Thus, this paper evaluates the viability of natural surfactants derived from agricultural products for oil recovery studies using a micromodel filled with paraffinic oil. The study investigates the interfacial tension, viscosity, microscopic, dilution, and oil mobilization characteristics of the natural surfactants.

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This work includes a novel approach for synthesis/fabrication of AuNRs of varied aspect ratios leading to investigation on the kinetics of their growth mechanism. The synthesized AuNRs were further functionalized with MWCNTs (AuNRs@MWCNTs) by one-pot synthesis. The synthesized AuNRs and AuNRs@MWCNTs were characterized by employing UV-vis spectroscopy.

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New cellulose (CL) fibers are derived from Chamaerops humilis (Ch) rachis. They play an essential role in various industries to produce environmentally friendly products as an alternative to enhancing and strengthening lightweight composites, such as dashboards automotive. Distinctive properties of Ch fibers (ChFs) were determined by extracting fibers from dwarf palm plant branches using anaerobic analysis.

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This study aimed to synthesize ecofriendly and low-cost surfactant-based sugar, HA-ST, under mild conditions and a short route via an opening ring of hexadecylsuccinic anhydride (HA) using starch (ST). HA-ST's chemical structure, thermal behavior, and surface activity were evaluated using Fourier Transform Infrared (FTIR) spectroscopy, thermogravimetric analysis, and a pendant drop technique. The results indicated HA-ST formation, thermal stability, and surface activity.

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This study addresses the critical need for efficient and recyclable photocatalysts for water treatment applications by presenting a novel approach for the synthesis and characterization of copper (I) oxide (CuO) nanoparticles modified with ascorbic acid (CuO/AA). The motivation for this research stems from the increasing concern about environmental pollution caused by organic pollutants, such as Brilliant Cresyl Blue (BCB), and the necessity for sustainable solutions to mitigate this issue. Through comprehensive characterization techniques including Ultraviolet-Visible spectroscopy (UV-Vis), Fourier Transform Infrared spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), zeta potential measurements, and Brunauer-Emmett-Teller (BET) analysis, we demonstrate a significant modification to the electronic structure, enhancing the photocatalytic activity of CuO/AA.

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In this study, inexpensive magnetite nanoparticles (FeO) were prepared and applied to oil spill remediation. To do so, two novel hydrophobic amides, HADN and HATN, were prepared and applied to FeO surface modification, producing HAN-FeO and HAT-FeO, respectively. The efficiency of HAN-FeO and HAT-FeO for oil spill remediation (EOSR) was investigated using different HAN-FeO and HAT-FeO weights and at various contact times.

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The current work aims to synthesize new amphipathic compounds, TGHA and PGHA, and investigate their demulsification performance (DP) in water-in-crude oil emulsions. Their chemical structures, thermal stability, interfacial activity, and micelle formation were investigated by different techniques. The bottle test method was used to investigate the effect of demulsifier concentration, water content, temperature, and demulsification time (DT) on the DP of TGHA and PGHA compared to a commercial demulsifier (CD).

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New sets of functionalized thiazolidinone and thiadiazole derivatives were synthesized, and their cytotoxicity was evaluated on HepG2, MCF-7, HTC-116, and WI38 cells. The synthetic approach is based on the preparation of 4-(4-acetamidophenyl)thiosemicarbazide (4) and their thiosemicarbazones 5 a-e, which are converted to the corresponding thiazoldin-4-one compounds 6 a-e upon cyclization with ethyl bromoacetate. The thiadiazole compounds 9 and 12 were obtained by reacting 4-(4-acetamidophenyl)thiosemicarbazide with isothiocyanates and/or ethyl 2-cyano-3,3-bis(methylthio)acrylate, respectively.

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Article Synopsis
  • The study focuses on creating new thiophene analogues as potential anticancer drugs through a multicomponent reaction involving various reagents like ethyl 4-chloroacetoacetate and phenyl isothiocyanate in a special solvent.
  • The reaction generated several thiophene derivatives, which were then further modified and characterized through elemental and spectral analysis.
  • The cytotoxicity of these new compounds was tested on HepG2, A2780, and A2780CP cell lines, revealing that one derivative showed promising growth inhibition, suggesting potential for future anticancer therapy development.
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Barium calcium titanate (BCT) ceramics with varying yttrium doping concentrations were fabricated using the solid-state compaction process to explore the attributes of dopants. (BaCa) TiO and (BaCa) (YTi) O where, y = 0.00, 0.

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The dam failure of the Córrego do Feijão Mine (CFM) located in Minas Gerais State, Brazil, killed at least 278 people. In addition, large extensions of aquatic and terrestrial ecosystems were destroyed, directly compromising the environmental and socioeconomic quality of the region. This study assessed the pollution and human health risks of soils impacted by the tailing spill of the CFM dam, along a sample perimeter of approximately 200 km.

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This work deals with poly(ethylene terephthalate) waste as a precursor to synthesize new cross-linked poly(ionic liquids) (CLPILs). The newly synthesized CLPILs, VPCT-Cl and VPCT-AA, were used for magnetite nanoparticle surface modification, producing VCL/FeO and VAA/FeO, respectively. The chemical structures of the CLPILs and surface-modified FeO were elucidated by Fourier transform infrared and X-ray diffraction.

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Article Synopsis
  • - The study investigated how human activities and seasonal changes affect the water quality and heavy metal concentrations in River Yala (RY) in the Lake Victoria basin by analyzing various physico-chemical parameters and ecological risks across different agricultural sites during both dry and wet seasons.
  • - Sample analysis revealed significant variability in parameters like electrical conductivity, turbidity, and heavy metal levels, with water and sediment data differing between pristine upstream areas and various agricultural farms, indicating a potential pollution impact from farming activities.
  • - The results showed that the wet season generally had a more pronounced effect on the levels of contaminants compared to the dry season, and specific heavy metals exhibited distinct correlations based on seasonal conditions, highlighting the importance of monitoring these factors for ecological health.
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This work aims at synthesizing new cross-linked poly ionic liquids, CPILs, VIMDE-Cl and CPIL, VIMDE-TFA, utilizing polyethylene terephthalate waste as a precursor and applying them to magnetite nanoparticles surface modification, producing surface-modified magnetite nanoparticles, SMNPs, VDCL/MNPs, and VDTA/MNPs, respectively. The structures of VIMDE-Cl and VIMDE-TFA, VDCL/MNPs, and VDTA/MNPs, were verified using different techniques. The particle sizes of SMNPs, VDCL/MNPs, and VDTA/MNPs, were evaluated with a transmission electron microscope and dynamic light scattering.

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This paper presents a valuable dataset that has been collected from different regions of Aoun district at Karbala Governorate in Iraq. The dataset includes different images of date palm leaves that have been collected over about six months, which represents the period of the dubas insect (Ommatissus binotatus lybicus Bergevin) growing. The collected images of the palm leaves are classified into four categories based on their health status and the stage of the insects present.

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This work aims to synthesize and apply two novel amphiphilic ionic liquids (AILs) for the demulsification of water-in-crude oil (W/O) emulsions. To do that, 4-tetradecylaniline (TA) and 4-hexylamine (HA) were etherified using tetrethylene glycol (TEG) in the presence of bis(2- chloroethoxyethyl)ether (BE) as a cross-linker, yielding corresponding ethoxylated amines TTB and HTB. The obtained ethoxylated amines TTB and HTB were quaternized with acetic acid (AA), obtaining corresponding AILs TTB-AA and HTB-AA.

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The disposal of electronic waste (e-waste) presents a number of environmental problems. However, there are great opportunities to use this problem waste as a source of value-added metals. These metals could be recovered and transformed for use in beneficial applications, such as the manufacture of nanomaterials for the generation of hydrogen through thermodynamic water-splitting.

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Dry eye syndrome (DES), is a multifactorial disease that affects the ocular surface and contributes to the ocular symptoms. The COVID-19 pandemic influenced the general population and university students' health in different ways. The pandemic forced many people including university students around the world to use virtual platforms on their digital devices, such as computers and smartphones, to work from a distance.

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This work aimed to use abietic acid (AA), as a widely available natural product, as a precursor for the synthesis of two new amphiphilic ionic liquids (AILs) and apply them as effective demulsifiers for water-in-crude oil (W/O) emulsions. AA was esterified using tetraethylene glycol (TEG) in the presence of -toluene sulfonic acid (PTSA) as a catalyst obtaining the corresponding ester (AATG). AATG was reacted with 1-vinylimidazole (VIM) throughout the Diels-Alder reaction, forming the corresponding adduct (ATI).

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The oil spill represents one of the most important pollution sources for marine environments, that occurs due to tanker collisions, ship accidents, and platforms. Several techniques are used for treating oil spill disasters including chemical, physical, and biochemical. The use of chemicals, magnetite nanomaterials (MNMs) in particular, is one of the most applied techniques used for oil spill remediation due to their low cost, fast remediation, and reusability.

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Over the past few decades, there has been an increased trend for the use of natural compounds and their derivatives as alternatives to traditional chemicals and is due to their renewability, green character, and wide availability. This work aims to convert sodium alginate (S.ALG), a natural polysaccharide, into amides through its conversion to alginic acid (H.

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