Even if water is the natural environment for bioorganic reactions, its use in organic chemistry is often severely limited by the high insolubility of the organic derivatives. In this review, we introduce some examples of the use of water to perform organoselenium chemistry. We mainly discuss the advantages of this medium when the recyclability is demonstrated and when the water can control the ...

The phosphorylation of nucleosides by a nucleoside phosphorofluoridate in the presence of potassium tert-butoxide is a very effective reaction for internucleotide bond synthesis in the case of pyrimidine deoxynucleosides. However, for the purine deoxynucleosides, yields are reduced due to competing reactions. The method was applied to the stepwise synthesis of oligothymidylates. The yield of th...

Unleashing the power of peptide hydrogels for environmental remediation: This is a tale an ultrashort hydrogel (azo-KC) and its efficiency wastewater treatment. The outcome cumulative efforts covalent noncovalent interactions providing unique features like thixotropy insolubility in bulk water medium. Dye contamination from textile industries severe concern pollution, this crosslinked 3D fibrou...

Through first-principles calculations, we successfully identified a two-dimensional layered nitridosilicate-MnSi2N4 in hexagonal structure, as novel anode for lithium (Li) and sodium (Na) ion batteries. Phonon molecular dynamics simulations manifest the favorable dynamic stability of MnSi2N4. The predicted material exhibits metallic behavior with high Young’s modulus 457 GPa aqueous insolubilit...

abstract to investigate the effect of community of inquiry method on improvement of interpersonal relationship skills, based on lipman’s theory, an experiment was conducted in tehran primary schools among students of third, fourth and fifth grade. 190 boy and girl students were randomly selected (97 boys, 93 girls) and assigned to experimental and control groups (88 experimental, 102 control). ...

The insolubility of Fe3+ necessitates special mechanisms for iron acquisition in most organisms. Bacteria use siderophores to chelate Fe3+ and iron in heme, hemoglobin, transferrin and lactoferrin, and employ novel mechanisms for receptor-dependent iron transport and iron-regulated gene expression. These mechanisms involve transfer of energy from the cytoplasmic membrane to the outer membrane t...

Many cases of naphthalene and naphthalene poisoning are reported in literature since the introduction of naphthalene in 1841 by Rossbach as an internal antiseptic in typhoid fever and an anthelminthic in 1842. Today, naphthalene poisoning occurs in suicidal attenipts, or accidental ingestion by children. Naphthalene’s relative insolubility in water and its poor absorption from the gut underesti...