cellulose wastes of a wood and paper factory were used to produce activated carbon. several chemical agents under various conditions were used for production of activated carbon and hence their adsorption properties have been evaluated. in addition the effect of process parameters such as raw material, chemical agent concentration, impregnation ratio, carbonization temperature, carbonization ti...

Experimental data obtained for the simultaneous action of hyperthermia with different physical or chemical agents on various cellular systems give evidence that the lesser the intensity of physical factor or the concentration of chemical agents, the lower the temperature has to be used to provide the highest or a definite level of synergistic interaction. On this basis, it is inferred that the ...

This tutorial review examines the fundamental aspects of a new class of contrast media for MRI based upon the chemical shift saturation transfer (CEST) mechanism. Several paramagnetic versions called PARACEST agents have shown utility as responsive agents for reporting physiological or metabolic information by MRI. It is shown that basic NMR exchange theory can be used to predict how parameters...

Two relatively new types of exogenous magnetic resonance imaging contrast agents may provide greater impact for molecular imaging by providing greater specificity for detecting molecular imaging biomarkers. Exogenous chemical exchange saturation transfer (CEST) agents rely on the selective saturation of the magnetization of a proton on an agent, followed by chemical exchange of a proton from th...

acquired bilateral longitudinal true leukonychia is a rare disorder. we present a case of a 35‑year‑old healthy woman presented with this unusual and rare manifestation. she mentioned a history of unprotected exposure to detergents and bleaching chemical agents. considering her low zinc level, she was prescribed with zinc capsules and recommended to avoid chemical substances for 6 months. durin...

As a continuation of our efforts in developing new antimycobacterial agents, a series of new 1,3-thiazolidine-2-thione derivatives were synthesized. The chemical structures of the compounds were elucidated by FT-IR, 1H-NMR and Mass spectra. The analysis of theoretical toxicity risks,drug-likeness and drug-score for these series using Osiris program showed acceptable results.