Optimization of fenugreek seed mucilage extraction for the synthesis of a novel bio-nano composite for efficient removal of cadmium ions from aqueous environments.

This research investigates the application of an innovative bio-nanocomposite, Fenugreek seed mucilage/silicon carbide (FSM/SiC), as an exceptionally effective adsorbent for eliminating cadmium ions from aqueous solutions. Optimization of fenugreek mucilage extraction involved ultrasonic methods, establishing ideal conditions with a solid-to-solvent ratio of 1:55, 50 °C temperature, 37 kHz frequency, 100 % power, and 30 min processing time. Comprehensive characterization through FTIR spectroscopy, XRD, imaging, DLS, and SEM confirmed the preservation of crucial adsorption-related characteristics.

Assessment of the effective parameters for the enhancement of light-harvesting power in the photoelectrochemical microbial fuel cell.

Photo-assisted microbial fuel cells (PMFCs) are novel bioelectrochemical systems that employ light to harvest bioelectricity and efficient contaminant reduction. In this study, the impact of different operational conditions on the electricity generation outputs in a photoelectrochemical double chamber configuration Microbial fuel cell using a highly useful photocathode are evaluated and their trends are compared with the photoreduction efficiency trends. As a photocathode, a binder-free photo electrode decorated with dispersed polyaniline nanofiber (PANI)-cadmium sulphide Quantum Dots (QDs) is prepared here to catalyse the chromium (VI) reduction reaction in a cathode chamber with an improvement in power generation performance.

Evaluation of the Spiral Chest CT Scan Findings in Patients with Multiple Trauma.

Objective: To evaluate the spiral chest computed tomography (CT) scan findings in patients with multiple trauma during the COVID-19 pandemic.

Methods: This retrospective study was performed on multiple trauma patients admitted to a tertiary hospital in the north of Iran in 2020. All patients with multiple trauma who had undergone a chest spiral CT were included in this study.

Synthesis of ZnFeO@Uio-66 nanocomposite for the photocatalytic degradation of metronidazole antibiotic under visible light irradiation.

Unlabelled: In this study, the application of ZnFeO, Uio-66 nanoparticles and ZnFeO@Uio-66 photocatalytic nanocomposites, with different ratios of each component was synthesized and applied for the photocatalytic degradation of metronidazole (MNZ) antibiotic. The samples were characterized with (FTIR), (XRD), (SEM), (DLS), (VSM), and UV-Vis spectroscopy. The photocatalytic process was performed under visible light in an aqueous solution.

Separation of copper ions by nanocomposites using adsorption process.

In this research, a novel nanocomposite adsorbent, graphene oxide modified with magnetite nanoparticles and Lauric acid containing ethylenediaminetetraacetic acid (GFLE) has been applied for the eliminate of Cu ions. Adsorption performance was considered as a function of solution pH, Cu ions concentration (C ), and temperature (T) and contact time (t). The levels of each variable were statistically optimized by Central Composite Design (CCD) and the response surface methodology (RSM) procedure to enhance the yield of system design.

Synthesis and modification of crystalline SBA-15 nanowhiskers as a pH-sensitive metronidazole nanocarrier system.

Clinical resistance to drugs and diminution in their side effects have become great issues for pharmacologists. In veterinary medicine, parasites like Trichomonas gallinae are of veterinary, hygienic and economic importance and can be treated by metronidazole. Unfortunately, scientific evidence has been reported about its resistance and serious side effects in trichomoniasis.

Facile synthesis of smartaminosilane modified- SnO/porous silica nanocomposite for high efficiency removal of lead ions and bacterial inactivation.

The aim of the present study is to synthesize a new and proficient nanoadsorbent for rapid removal of heavy metals and disinfection of microorganisms. The proposed nanoadsorbent was fabricated using SnO nanoparticles as the core, coated with mesoporous silica and further modified with 3-Aminopropyl triethoxysilane to render SnO/PSi/NH nanocomposite. The nanocomposite was characterized using Fourier Transform Infrared (FTIR), X-Ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Nitrogen adsorption-desorption analysis.

The application of response surface methodology on the synthesis of conductive polyaniline/cellulosic fiber nanocomposites.

The chemical oxidation polymerization was used in situ aimed at preparing polyaniline/cellulosic fiber nanocomposites that are highly intrinsic and conductive in nature. The prepared composites were characterized by Fourier transform infrared (FTIR) thermal Gravimetric analysis (TGA), and their morphology was investigated using field emission scanning electron microscope (FE-SEM) to elucidate the mechanism of conductivity decay of the paper nanocomposite. Box-Behnken experimental design method was applied to determine the optimum synthesis parameters.

Experimental design data for the zinc ions adsorption based on mesoporous modified chitosan using central composite design method.

In the present study, new generation of silica-based mesoporous adsorbents were introduced for the removal of heavy metals with the aim of developing new adsorption technologies in water treatment. The magnetic nanoadsorbent, prepared by modification of SBA-15 with [3-(2-Aminoethylamino) propyl] trimethoxysilane (AEAPTMS)-functionalized chitosan, was applied for the removal of Zn from aqueous solution. The synthesized FeO@SBA-15-CS-AEAPTMS nanoadsorbent was thoroughly characterized using XRD, TEM, FTIR and BET analysis.

Fabrication of NiFeO magnetic nanoparticles loaded on activated carbon as novel nanoadsorbent for Direct Red 31 and Direct Blue 78 adsorption.

In this research, magnetic nickel ferrite NiFeO/hazelnut-shell-based activated carbon (NiFeO/AC) was used to eliminate anionic dyes (Direct Red 31(DR31) and Direct Blue 78 (DB78)) from aqueous solution. The morphological, structural, particle size and surface charge properties of as-prepared nanoadsorbent were characterized. TEM (Transmission electron microscopy) images revealed that the size of NiFeO particles in the structure of AC was in the range of 8-12 nm, which is compatible with the results obtained by the analysis of DLS (Dynamic light scattering).

Surface modified polythiophene nanocomposite using HPC and DBSNa for heavy metal ion removal.

In the present work, surface modified nanocomposite adsorbents polythiophene (PTh)/rice husk ash (RHA) have successfully been synthesized in the presence of hydroxyl propyl cellulose (HPC) and sodium dodecyl benzene sulfonate (DBSNa) as surfactants. The synthesized nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR), and the synthesized nanocomposite adsorbents were applied as an efficient sorbent for Pb(II) ion removal from contaminated water and the removal efficiency was compared to pure PTh/RHA composite. Several variables affecting the extraction efficiency of the nanoadsorbent i.

In vivo evaluation of toxicity and antiviral activity of polyrhodanine nanoparticles by using the chicken embryo model.

Evaluation of the potential cytotoxicity of polyrhodanine nanoparticles is an important factor for its biological applications. In current study, for the first time histopathological and biochemical analysis of polyrhodanine besides of its antiviral activity against Newcastle disease virus (NDV) were examined on chicken embryo model. Polyrhodanine was synthesized by the chemical oxidative polymerization method.

Synthesis of a smart pH-responsive magnetic nanocomposite as high loading carrier of pharmaceutical agents.

To create facile external controlled drug delivery system, a magnetic porous carrier based on Tin oxide nanoparticles was synthesized by an inexpensive and versatile hydrothermal strategy and used for in-vitro process. Magnetic nanocomposites were qualified by Fourier Transform Infrared (FTIR), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Vibrational Sample Magnetometer (VSM) and Transmission Electron Microscopy (TEM). Results showed that nanoparticles were synthesized successfully with good dispersion of magnetic nanoparticles in cavity, uniform particle size distribution with average size of 65nm and high magnetization of 33.

Thermal stability enhancement of modified carboxymethyl cellulose films using SnO2 nanoparticles.

In this study, in-situ and ex-situ hydrothermal synthesis procedures were applied to synthesize novel CMC/porous SnO2 nanocomposites from rice husk extracted carboxymethyl cellulose (CMC) biopolymer. In addition, the effects of SnO2 nanoparticles on thermal stability of the prepared nanocomposite were specifically studied. Products were investigated in terms of morphology, particle size, chemical structure, crystallinity and thermal stability by using field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA), respectively.

Mitral valve surgery in patients with systemic lupus erythematosus.

Valvular heart disease is the common cardiac manifestation of systemic lupus erythematosus (SLE) with a tendency for mitral valve regurgitation. In this study we report a case of mitral valve replacement for mitral stenosis caused by Libman-Sacks endocarditis in the setting of SLE. In addition, we provide a systematic review of the literature on mitral valve surgery in the presence of Libman-Sacks endocarditis because its challenge on surgical options continues.