Impact para position on rho value and rate constant and study of liquid crystalline behavior of azo compounds

Preparing Some Nano Composites Decorated with Some Pharmaceutical Compounds and Evaluating their Biological Effectiveness

“…The bacterial suspension was prepared from a 24-hour-old colony, which was done by taking a smear of the isolated bacteria using a lube, and according to the type of bacteria to be worked on, it was placed in the prepared solution, Normal saline solution, in an amount of 10 ml, and incubated for 24 hours. (17) (18) 2.7.3 Synthesis bacterial plates to test the biological activity of the prepared compounds The biological effectiveness of the prepared compounds was estimated according to the method (United States Pharmacopeia USP) under the antibiotics-microbial assays section, and the work was done using the cylinder plate method. Which is summed up by preparing a nutrient medium consisting of nutritional compounds for bacteria.…”

Synthesis, Characterization, Biological Evaluation, and Assessment Laser Efficacy for New Derivatives of Tetrazole

“…The simplest of them is Tetrazole with the formula CH2N4 [2]. These compounds are considered one of the most effective cyclic because they possess four free pairs of electrons for four nitrogen atoms of the electron propellant [3]. This tetrazole is prepared by cyclic addition between Schiff base and sodium azide [4].…”

“…The prepared compounds are thermally stable at normal temperatures, as it is noticed that [A1-A5] are completely dissolved in methanol, THF, DMSO, DMF, CHCl3 and mix 1,4-dioxane whit EtOH, as well as not soluble in solvents EtOH, H2O, acetone, ether, benzene, 1,4-dioxane, and are poorly soluble in solvents CCl4, hexanol as shown in the table(3).…”