A well-defined virus-like cage hybrid (VCH) with 24 covalent organic cages (COCs) attached to one metal (MOC) is presented here. The quantitative assembly of VCH was completed through coordination between soluble anisotropic COC bearing bipyridine moiety and Pd(II) ions. obtained exhibited discrete, uniform stable structures good solubility well characterized by NMR, FT-IR, TEM, AFM, DLS, TGA, ...

Soluble salts are compounds found inside ornamental rocks and building stones exposed to atmospheric agents in environments rich alkaline metal ions, such as sodium potassium. The damage induced by their crystallization those materials, used build monuments architectural structures of great importance, is an unsolved problem. Sodium sulfate one the most common harmful salt these constructions. ...

The concentrations of water-soluble anions present in PM10 collected from ambient air four sites Costa Rica’s greater metropolitan area (GAM) were analyzed. Samples over a 24-h period for three days during the 2011–2018 period, using high-volume samplers with mass flow controller. samples quartz fiber filters, which analyzed ion chromatography to identify organic and inorganic ions. annual aver...

presence of available and stable fluoride in a dentifrice formulation is a major requirement for an anti-caries effect. although the available fluoride concentration in iranian dentifrices has been reported in previous studies, there is little information on its stability; which is dependent upon dentifrice formulation. this study was done to assess the fluoride ion concentration and stability ...

the relationship between topography, soil factors, and distribution of ecological vegetation groups in the nodoushan arid rangelands of yazd province (iran) was investigated. the present species were recorded in each vegetation group using a randomized-systematic sampling method. plant cover and density were estimated quantitatively using the transect and quadrate methods, and the two-way indic...

the present investigation provides a thorough study of eliminating soluble and colloidal elements of copper, iron, magnesium and zinc during estuarine mixing of gorganrood river water with caspian sea water in iran. the processes of flocculation were carried out in 10 aquariums in order to furnish the salinity in an interval of 0.3 - 4.4 ppt. the obtained result is indicative of non- conservati...

Bacterial anchoring to limestone rocks is thought occur by selective adsorption of biomolecules found in the extracellular matrix, such as polysaccharides. Here we study adsorbed structure a model matrix polysaccharide, sodium alginate, at calcite/water interface using neutron reflection (NR). Sodium alginate was form highly hydrated layers extending up 350 Å into solution concentrations 2.5 pp...

Electrodeposition of silicon in molten CaCl2 has been drawing increasing attention. Soluble silicate anions the melt can be reduced and tailored into functional materials. To ensure a precise control electrochemical processes, comprehensive knowledge on soluble is indispensable. Here, we clarify formation behavior by dissolving solid CaSiO3 Ca2SiO4 at temperatures from 1047 K to 1233 (774 °C 96...

Zeolite application to clayey soils may change potassium (K) pools distribution and its release rate. To test this hypothesis, two heavy-textured calcareous soils with different mineralogy (smectitic and mixed by XRD) from southern Iran were selected. Experiment was a completely randomized factorial arrangement. Treatments consisted of two soils and two zeolite levels (0 and 5%) and wetting-dry...

in this article cloud-point extraction (cpe) was used with chelating agent to extract uranium from aqueous solutions. the methodology used is based on the formation of metal complexes soluble in a micellar phase of surfactant. the metal ions complexes are then extracted into the surfactant-rich phase at a temperature above the cloud-point temperature. the effect of type of surfactants and ligan...