in this study, damar batu (db) − a novel biomaterial− is evaluated for its potential application in pharmaceutical coating. db is a whitish to yellowish resin, characterized initially in terms of solubility, acid value, molecular weight (mw), polydispersity index (mw/mn) and glass transition temperature (tg). neat plasticized films of db are investigated for mechanical, water vapor transmission...

background: in the last decades, mesoporous silica nanoparticles (msn) are improved for drug delivery, imaging, and biomedical applications due to their special properties such as large surface area, high drug loading capacity, tunable pore size, and modification of surface area by functional groups. objectives: the aim of this study was to evaluate msns as carriers for oral colon-specific and ...

all people need food. unsafe foods; however, may cause diseases ranging from diarrhea to cancer. chemicals in food are a worldwide health concern. in 2006, the world health organization (who) organized a consultation on the global burden of foodborne diseases. work to estimate this burden began in 2007 and was carried out by the who foodborne disease burden epidemiology reference group (ferg), ...

reaction to fire of fire-retarded rigid pur foams and two types of metal faced rigid polyurethane foam core sandwich panel was evaluated by using cone calorimeter test method. the tests were carried out in various radiative heat fluxes from 15 to 75 kw/m2. the radiation rate effect on reaction to fire parameters, including time to ignition (tti), peak of heat release rate (prhr), total heat rel...

modification of the mechanical properties of silicone rubber were considered for drug delivery systems by using high-energy electron beam (e-beam). in this research work, two different medical grades of silicone rubbers were used to prepare matrices containing 10wt% progesterone with 2 mm thickness and irradiated with e-beam at dose range of 25 up to 200 kgy. then, the mechanical properties as ...

in the field trials of slow-release nollusicide, copper content mcckechnie chemical inc. 30 cuso4 5h2o or 7.5 cupellet/sinking material 7 days release life were tested against the common aquatic snails bulinus truncatus, physa acuta and lymnaea gedrosiana in stagnant water bodies in khuzestan province, south-west of iran. snail densities before treatment and 7 days after mollucicide application...

severe accidents of process industries in iran have increased significantly in recent decade. this study quantitatively analyzes the hazards of severe accidents imposed on people, equipment and building by a hydrogen production facility. a hazard identification method was applied. then a consequence simulation was carried out using phast 6.54 software package and at the end, consequence evaluat...

Background: Neurotransmitter release is an essential link in cell communication of the nervous system. Many investigations have focused on gamma amino butyric acid (GABA)-ergic neurotransmission, because it has been implicated in the pathophysiology of several central nervous system disorders. To bypass complications related to homo- and heterosynaptic modulation and to avoid indirect interpret...

The purpose of the present study was investigating kinetic and thermodynamic analysis using eudragit (EUD) polymer as controller to drug release mebendazole. nanofibers containing various proportions of EUD polymer, that were prepared with electrospinning technique.  In this study, the amount of drug mebendazole release was investigated using nanofibers containing EUD at concentrations 50, 250,...