Materials Literature
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We present a systematic analysis of molecular oxygen (O$_2$) adsorption trends on bimetallic PtNi clusters and their monometallic counterparts supported on MgO(100), by means of periodic DFT calculations for sizes between 25 up to 58 atoms. O$_2$ adsorption was studied on a variety of inequivalent sites for different…
Abstract Films of PBAT/TPS (poly(butylene adipate‐ co ‐terephthalate)/thermoplastic starch) (starch plasticized with glycerol containing citric and stearic acids) without and with 0.6 wt% starch nanoparticles were produced by extrusion. The presence of nanoparticles during the extrusion process led to a higher degree…
A nonlocal trigonometric shear deformation beam theory based on neutral surface position is developed for bending, buckling, and vibration of functionally graded (FG) nanobeams using the nonlocal differential constitutive relations of Eringen. The present model is capable of capturing both small scale effect and trans…
This study was carried out in the Food Science Department, Agriculture College, Basrah University to investigate the effect of different chitosan concentrations on drinking water quality. The studied parameters were turbidity, TDS, electrical conductivity and pH. The results showed that the turbidity, TDS, electrical…
ABSTRACT A novel organosoluble polyimide (PI) with pyrimidine ring in the main chain was synthesized by chemical and thermal imidization, respectively, from 3,3′,4,4′‐benzophenone tetracarboxylic dianhydride and 2,4‐diamino‐6‐chloropyrimidine as raw materials and its molecular structure, solubility, UV–visible absorpt…
Abstract Electrospun membranes of poly(p‐dioxanone‐co‐ l ‐phenylalanine) (PDPA) hold potential as an anti‐adhesion material. Since adjustable degradation properties are important for anti‐adhesion materials, in this study, the in vitro and in vivo degradation processes of PDPA electrospun membranes were investigated i…
Abstract Instantaneous electronic and structural modifications of Cu surfaces by high‐pressure CO were explored. At pressures over a millibar range the coverage of CO on the Cu(1 1 1) surface reached approximately one monolayer, and we observed several shake‐up peaks in the Cu 2p photoemission spectra for the first ti…
In the past years, the self-assembly of specific proteins has been paid more and more attention due to their significant role in human health and fabrication of new materials. In this article, we explore the effect of reaction conditions on the self-assembly of natural silk sericin protein, including the molecular wei…
Due to the existing nanofabrication techniques, many periodic photonic structures consist of different parts where the material properties depend only on one spatial variable. The vertical mode expansion method (VMEM) is a special computational method for analyzing the scattering of light by structures with this geome…
Using a method that combines experimental and simulated Aberration-Corrected High Resolution Electron Microscopy images with digital image processing and structure modeling, strain distribution maps within gold nanoparticles relevant to real powder type catalysts, i.e., smaller than 3 nm, and supported on a ceria-base…
Nanodiamonds (NDs) could be regarded as one of the most attractive nanocarbon materials available so far for biomedical applications. After being carboxylated, they can be used as the carrier for drug‐delivery systems and cell probes. However, their effect on cell migration and the related mechanism remains unknown. H…
Molecular‐pillar‐supported basal plane of reduced graphene oxide (rGO) is fabricated by polymerizing polyaniline (PANI). In the presence of poly(ethylene glycol) (PEG200), the γ ‐radiolysis is used for modifying the functionalization and improving the structural symmetry of PANI and PEG grafted rGO (PANI‐PEG‐g‐rGO). T…
ABSTRACT Hydrolytic degradation of a nanocomposite of poly(L‐lactic acid), PLA, and a layered double hydroxide (LDH) modified with the drug 4‐biphenyl acetic acid (Bph) has been studied. PLA/LDH‐Bph nanocomposite was prepared by solvent casting with 5 wt % of drug modified LDH and the hydrolytic degradation was carrie…
ABSTRACT A novel highly sensitive Ag‐nanocomposite for humidity detection has been successfully prepared. Initially, cellulose isolated from Tunisian palm date petiole was converted to carboxymethyl cellulose (CMC) as biomatrix under heterogeneous conditions. The synthesized product was thoroughly characterized by mea…
In this study, the effect of the incubation time, incubation temperature, pH, metal and sodium ions on the antibacterial activity of chitosan against food borne spoilage bacteria focused. Aeromonas hydrophila and Staphylococcus aureus were used as two food borne bacteria. Acetic acid was used dissolving of chitosan. R…
Photoelectric property change in half-dimensional (0.5D) semiconducting nanomaterials as a function of illumination light intensity and materials geometry has been systematically studied. Through two independent methods, conductive atomic force microscopy (C-AFM) direct current-voltage acquisition and scanning kelvin…
ABSTRACT This work is focused on novel methodology of poly(vinyl alcohol) crosslinking by non‐toxic dicarboxylic acid, glutaric acid. The cross‐linked system was used as a matrix for immobilization of bacteriocin nisin. Effect of the crosslinking degree on physico‐chemical, morphology, mechanical, and thermal properti…
Abstract Atomic hydrogen on the surface of a metal with high hydrogen solubility is of particular interest for the hydrogenation of carbon dioxide. In a mixture of hydrogen and carbon dioxide, methane was markedly formed on the metal hydride ZrCoH x in the course of the hydrogen desorption and not on the pristine inte…
The reaction of Na 2 WO 4 and Na 2 SeO 3 in the presence of MnCl 2 under moderately acidic conditions yielded two unprecedented tungstoselenites: dimeric K 2 Na 10 [K 2 ⊂{MnSe 4 W 23 O 85 (H 2 O) 6 }]·29H 2 O ( 1 ) and trimeric wheel-shaped K 2 Na 10 [K 2 ⊂{Mn 3 Se 7 W 39 O 131 (OH) 20 (H 2 O) 2 }]·60H 2 O ( 2 ). The…
The crystal structure of l -lysine was reported very recently and represented the final member of the set of 20 directly encoded proteinogenic amino acids to have a crystal structure of the enantiomerically pure form determined. Under ambient conditions, l -lysine has a strong propensity to undergo hydration by incorp…