In this paper, a novel graphene oxide-folic acid/silk fibroin (GO-FA/SF) nanobiocomposite scaffold was designed and fabricated using affordable non-toxic materials. The GO synthesized the hummer method, covalently functionalized with FA, then easily conjugated extracted SF via freeze-drying process. For characterization of scaffold, several techniques were employed: Fourier-transform infrared (FT-IR), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX),...

The study presented in this paper attempts to evaluate some interpolation techniques for mapping spatial distribution of soil pH, salinity and plant cover Hormozgan province, Iran. relationships among environmental factors vegetation types were also investigated. Plot sampling was applied the area. Landform parameters each plot recorded canopy percentages species measured while stoniness browsing damage estimated. Results indicated that there a significant difference high low slope...

Abstract Covalent organic frameworks (COFs) are classified as lightweight, ordered, porous polymeric compounds. COF‐based materials comprised of the covalent bonds lightweight elements, such C, B, O, Si, and N, with structural units. They can be used in various industrial applications. There have been significant advances design synthesis their applications gas storage, catalysis, adsorption, purification small molecules, optoelectronics, molecular sensing, biomedical, targeted drug...

In this work, two novel well‐defined Cu (I) complexes of a Schiff base ligand are described. For purpose, N, N′‐bis (trans‐cinnamaldehyde) ethylenediimine [C 20 H N 2 ] ( L ) and complex the type [CuC )PPh 3 Cl] (C1) [Cu(C Br] (C2) were synthesised. IR, NMR, XRD TGA analyses used to characterise these compounds single‐crystal X‐ray crystallography confirmed structure compounds. The catalytic activity synthesised was studied in azide‐alkyne click reaction (AAC) best condition 15 mol%...

A pot experiment was conducted during a two-year period in order to evaluate and compare the salinity tolerance of 10 Iranian commercial cultivars pomegranate. Pots were arranged split plot design with two factors included water as main 3 levels 4, 7 dS/m pomegranate sub-plot replications. The properties concerned vegetative growth, percentage alive cuttings after 2 month necrosis chlorosis leaves. In end yield root dry weight also measured. addition, irrigation water, drainage soil plots,...

This letter presents a practical method to improve the performance of dual-frequency dual-polarized patch antenna via increasing isolation between receiving and transmitting ports using spiral defected microstrip resonators. They are added feeding lines enhance antenna. Experimental results show that proposed improves higher than 55 dB at both frequency bands.

Abstract In this study, saponins were extracted from Panax ginseng root powder. The crude solvent‐extracted containing triterpenoid glycosides and terpenes that identified by TLC techniques. critical micelle concentrations (CMC) of the determined measuring change in (a) UV‐visible spectrum iodine due to micelle‐iodine complexation, (b) absorption intensity aqueous alpha‐lipoic acid micellar solubilization drug, (c) surface tension abrupt air/liquid interface saturation surfactants monomers....

A simple approach is introduced to assess the toxicity of nitroaromatic compounds in terms an oral LD50 dose (50% lethal dose) for rats. Most presented Quantitative Structure-Activity Relationship (QSAR) models prediction vivo nitroaromatics are calculated by quantum computing descriptors which more difficult interpret and apply, while new model requires only molecular structure a desirable compound. The novel based on constitutional descriptors, such as number oxygen, sulphur, phosphorous...

Magnetic nanoparticles were creatively selected as stable, inexpensive, biodegradable, facile recoverable, and functionalizable supports for a variety of synthetic natural polymers. Herein, the first time, aromatic polyamide was synthesized on magnetic core zinc iron oxide (ZnFe2O4). Terephthaloyl chloride derivations phenylenediamine employed monomers in this polymerization process. The toxicity hybrid at highest concentration (1000 μg/ml) is 13.65% other hand, cell viability percentage...

A recent conversion of the grasslands to cropland degrading soil quality (SQ), and impacting erosion crop productivity in West Corn Belt (WCB) USA. The current study was conducted estimate spatial distribution at Big Sioux River (BSR) watershed scale using Geographical Information System (GIS)-enabled Revised Universal Soil Loss Equation (RUSLE). Spatial data such as weather, a digital elevation model (DEM), land use maps soils were used for assessment downloaded from easily available online...

The research presented in this paper attempts to develop a more realistic model using multi-layer perceptron (MLP), feed forward artificial neural network (ANN), instead of traditional models like multiple linear regression (MLR) for predicting some soil physico-chemical and hydrological properties. study area (Guilan Province) which is located northern Iran bordering south side Caspian Sea coastal zone has udic thermic moisture temperature regimes respectively. estimated parameters were...

A greenhouse experiment was conducted in order to evaluate the interactive effects of microbial inoculants on uptake nutrient elements (N, P, K, Ca, Mg, Na, Cl, Fe, Zn, Cu, Mn) two cultivars sunflower. The trials were carried out saline (EC = 7.6 dS m-1) calcareous soils taken from Eshtehard (Karaj) region Iran. In a factorial trial and completely randomized design (CRD), three levels arbuscular mycorrhizal (non inoculation, inoculation withGlomus etunicatum Glomus intradices) four...

A green and efficient protocol for the synthesis of densely functionalized 2-aminothiophene derivatives is described by one-pot three-component Gewald reaction from enolizable carbonyl compounds, malononitrile (or ethyl cyanoacetate) elemental sulfur in polyethylene glycol 600, as an eco-friendly medium, without using any basic compounds under ultrasonic be recovered reused at least five times significant loss its activity. The merits this are mild conditions, good yields, short time, simple...