In this article, mercapto-functionalized helical mesoporous silica nanorods have been synthesized by a one-step co-condensation of tetraethoxysilane (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTS) using cetyltrimethylammonium bromide (CTAB) as a template. Process parameters, including MPTS concentration, stirring time and added volume of ethanol as co-solvent, were both carefully and accurat...

background brucellosis as a zoonotic infectious disease is endemic in iran and due to the variation in clinical and laboratory findings, its diagnosis is often delayed. objectives the aim of this study was to determine clinical and laboratory aspects of the disease in khuzestan. patients and methods medical records of 81 admitted patients with a diagnosis of brucellosis were reviewed. the study...

To understand the molecular mechanism of action of the novel class of diuretic agents, the antidiuretic hormone antagonists ["aquaretics" (specific water-losing activity as caused by vasopressin antagonists, as distinguished from the saluresis of conventional diuretics)], in the dog studies were made of the properties of the vasopressin-responsive adenylate cyclase system and the antagonist pot...

Vasopressin and its synthetic analogs were studied for their effect on transepithelial water flux in frog urinary bladder. As compared with AVP, 1-deamino-8-D-arginine vasopressin (dDAVP) was about 40 times less effective in stimulating osmotic water flow. The vasopressin analogs obtained by modification in positions 1 and 2 were: [1-(1-mercapto-4-tert-butylcyclohexaneacetic acid)] AVP (I); [1-...

The electrochemical corrosion prevention of engines and mechanisms is a task great national, economic defense importance. Lubricating oils commonly used in engineering do not have sufficient protective properties are unable to effectively protect it from corrosion, both during operation short-term long-term inactivity. One the simplest most rational ways solve this problem use lubricants contai...